Grafana dashboard: Longhorn Example v1.4.0
Description: An example dashboard for Longhorn v1.4.0

Longhorn is a distributed block storage system for Kubernetes. This dashboard has been built to serve as an example for monitoring the Longhorn storage system.

Longhorn is lightweight, reliable, and powerful. You can install Longhorn on an existing Kubernetes cluster with one kubectl apply command or using Helm charts. Once Longhorn is installed, it adds persistent volume support to the Kubernetes cluster.

Longhorn implements distributed block storage using containers and microservices. Longhorn creates a dedicated storage controller for each block device volume and synchronously replicates the volume across multiple replicas stored on multiple nodes. The storage controller and replicas are themselves orchestrated using Kubernetes. Here are some notable features of Longhorn:

Enterprise-grade distributed storage with no single point of failure
Incremental snapshot of block storage
Backup to secondary storage (NFSv4 or S3-compatible object storage) built on efficient change block detection
Recurring snapshot and backup
Automated non-disruptive upgrade. You can upgrade the entire Longhorn software stack without disrupting running volumes!
Intuitive GUI dashboard

{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS-LONGHORN",
      "label": "prometheus-longhorn",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }
  ],
  "__requires": [
    {
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
      "version": "7.1.5"
    },
    {
      "type": "panel",
      "id": "graph",
      "name": "Graph",
      "version": ""
    },
    {
      "type": "datasource",
      "id": "prometheus",
      "name": "Prometheus",
      "version": "1.0.0"
    },
    {
      "type": "panel",
      "id": "stat",
      "name": "Stat",
      "version": ""
    },
    {
      "type": "panel",
      "id": "table",
      "name": "Table",
      "version": ""
    },
    {
      "type": "panel",
      "id": "text",
      "name": "Text",
      "version": "7.1.0"
    }
  ],
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "type": "dashboard"
      }
    ]
  },
  "description": "An example dashboard for Longhorn v1.4.0",
  "editable": true,
  "gnetId": 17626,
  "graphTooltip": 0,
  "id": null,
  "links": [],
  "panels": [
    {
      "datasource": null,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 24,
        "x": 0,
        "y": 0
      },
      "id": 6,
      "options": {
        "content": "<div class=\"dashboard-header text-center\">\n<span>NODES</span>\n</div>",
        "mode": "html"
      },
      "pluginVersion": "7.1.0",
      "timeFrom": null,
      "timeShift": null,
      "title": "",
      "transparent": true,
      "type": "text"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "The total number of nodes in the Longhorn storage system",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 0,
        "y": 3
      },
      "id": 18,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "avg(longhorn_node_count_total) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Total Number Of Nodes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Disabled nodes are nodes that are disabled by the user.  When users disable a node, Longhorn will not use the node's storage for replica scheduling. Note that Longhorn can still attach a volume to disabled nodes because the actual data of the volume could be on a different node.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "yellow",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 4,
        "y": 3
      },
      "id": 21,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_node_status{condition=\"allowScheduling\"}==0) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Disabled Nodes",
      "type": "stat"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 15,
        "x": 8,
        "y": 3
      },
      "hiddenSeries": false,
      "id": 24,
      "legend": {
        "alignAsTable": true,
        "avg": false,
        "current": true,
        "max": false,
        "min": false,
        "rightSide": true,
        "show": true,
        "total": false,
        "values": true
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "(longhorn_node_storage_usage_bytes/longhorn_node_storage_capacity_bytes) * 100",
          "interval": "",
          "legendFormat": "{{node}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Node Storage Usage/Capacity",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:530",
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:531",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Schedulable nodes are nodes that Longhorn can use their storage for replica scheduling.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "red",
                "value": null
              },
              {
                "color": "green",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 0,
        "y": 9
      },
      "id": 20,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "(count(longhorn_node_status{condition=\"schedulable\"}==1) OR on() vector(0)) - (count(longhorn_node_status{condition=\"allowScheduling\"}==0) OR on() vector(0))",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Schedulable Nodes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Failed Nodes are nodes that Longhorn cannot attach volumes to and cannot schedule replicas onto. e.g: when the nodes went down.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 4,
        "y": 9
      },
      "id": 22,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "(avg(longhorn_node_count_total) OR on() vector(0)) - (count(longhorn_node_status{condition=\"ready\"}==1) OR on() vector(0))",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Failed Nodes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "",
      "fieldConfig": {
        "defaults": {
          "custom": {
            "align": null
          },
          "decimals": 1,
          "mappings": [],
          "min": 0,
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "bytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Storage Capacity"
            },
            "properties": [
              {
                "id": "custom.displayMode",
                "value": "lcd-gauge"
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 10,
        "w": 15,
        "x": 8,
        "y": 13
      },
      "id": 23,
      "options": {
        "showHeader": true
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "longhorn_node_storage_capacity_bytes",
          "format": "table",
          "instant": true,
          "interval": "",
          "legendFormat": "{{node}}",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Node Capacity",
      "transformations": [
        {
          "id": "organize",
          "options": {
            "excludeByName": {
              "Time": true,
              "__name__": true,
              "endpoint": true,
              "instance": true,
              "job": true,
              "namespace": true,
              "pod": true,
              "service": true
            },
            "indexByName": {},
            "renameByName": {
              "Value": "Storage Capacity"
            }
          }
        }
      ],
      "type": "table"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "decimals": 0,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 8,
        "w": 8,
        "x": 0,
        "y": 15
      },
      "hiddenSeries": false,
      "id": 26,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "count by (node) (longhorn_volume_state==2)",
          "interval": "",
          "legendFormat": "{{node}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Number of Volumes Per Node",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:422",
          "decimals": 0,
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:423",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "datasource": null,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 24,
        "x": 0,
        "y": 23
      },
      "id": 17,
      "options": {
        "content": "<div class=\"dashboard-header text-center\">\n<span>DISKS</span>\n</div>",
        "mode": "html"
      },
      "pluginVersion": "7.1.0",
      "timeFrom": null,
      "timeShift": null,
      "title": "",
      "transparent": true,
      "type": "text"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "The capacity of each Longhorn volume",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 8,
        "x": 0,
        "y": 26
      },
      "hiddenSeries": false,
      "id": 32,
      "legend": {
        "alignAsTable": true,
        "avg": false,
        "current": true,
        "max": false,
        "min": false,
        "rightSide": true,
        "show": true,
        "total": false,
        "values": true
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "(longhorn_disk_usage_bytes/longhorn_disk_capacity_bytes)*100",
          "interval": "",
          "legendFormat": "{{disk}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Disk Space Usage",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:530",
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:531",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "",
      "fieldConfig": {
        "defaults": {
          "custom": {
            "align": null
          },
          "decimals": 1,
          "mappings": [],
          "min": 0,
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "bytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Capacity"
            },
            "properties": [
              {
                "id": "custom.displayMode",
                "value": "lcd-gauge"
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 10,
        "w": 15,
        "x": 8,
        "y": 26
      },
      "id": 33,
      "options": {
        "showHeader": true
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "longhorn_disk_capacity_bytes",
          "format": "table",
          "instant": true,
          "interval": "",
          "legendFormat": "{{disk}}",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Disk Capacity",
      "transformations": [
        {
          "id": "organize",
          "options": {
            "excludeByName": {
              "Time": true,
              "Value": false,
              "__name__": true,
              "disk": false,
              "endpoint": true,
              "instance": true,
              "job": true,
              "namespace": true,
              "pod": true,
              "service": true
            },
            "indexByName": {},
            "renameByName": {
              "Value": "Capacity"
            }
          }
        }
      ],
      "type": "table"
    },
    {
      "datasource": null,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 24,
        "x": 0,
        "y": 36
      },
      "id": 4,
      "options": {
        "content": "<div class=\"dashboard-header text-center\">\n<span>VOLUMES</span>\n</div>",
        "mode": "html"
      },
      "pluginVersion": "7.1.0",
      "timeFrom": null,
      "timeShift": null,
      "title": "",
      "transparent": true,
      "type": "text"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "The total number of volumes in the Longhorn storage system",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 0,
        "y": 39
      },
      "id": 8,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_capacity_bytes) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Total Number Of Volumes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Healthy volumes are volumes that are attaching to a node and have the number of healthy replicas equals to the expected number of replicas.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "red",
                "value": null
              },
              {
                "color": "green",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 4,
        "y": 39
      },
      "id": 13,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_robustness==1) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Healthy Volumes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "The capacity of each Longhorn volume",
      "fieldConfig": {
        "defaults": {
          "custom": {
            "align": null,
            "displayMode": "auto"
          },
          "decimals": 1,
          "mappings": [
            {
              "from": "",
              "id": 0,
              "text": "",
              "to": "",
              "type": 1,
              "value": ""
            }
          ],
          "min": 0,
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "bytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "volume"
            },
            "properties": [
              {
                "id": "custom.displayMode",
                "value": "auto"
              }
            ]
          },
          {
            "matcher": {
              "id": "byName",
              "options": "Capacity"
            },
            "properties": [
              {
                "id": "custom.displayMode",
                "value": "lcd-gauge"
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 8,
        "w": 15,
        "x": 8,
        "y": 39
      },
      "id": 10,
      "options": {
        "frameIndex": 4,
        "showHeader": true,
        "sortBy": []
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "avg by (volume) (longhorn_volume_capacity_bytes)",
          "format": "table",
          "instant": true,
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "{{volume}}",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Volume Capacity",
      "transformations": [
        {
          "id": "organize",
          "options": {
            "excludeByName": {
              "Time": true
            },
            "indexByName": {},
            "renameByName": {
              "Value": "Capacity"
            }
          }
        }
      ],
      "type": "table"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Degraded volumes are volumes that have the number of healthy replicas smaller than the expected number of replicas. e.g. User creates a volume with 2 replicas but 1 replicas is failed.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "orange",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 0,
        "y": 45
      },
      "id": 15,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_robustness==2) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Degraded Volumes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Fault volumes are volumes that doesn't have any healthy replica.",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 4,
        "y": 45
      },
      "id": 16,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_robustness==3) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Fault Volumes",
      "type": "stat"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Note that Longhorn volume actual size is not the size of the filesystem inside a Longhorn volume.  See more at : https://longhorn.io/docs/1.0.2/volumes-and-nodes/volume-size/#volume-actual-size",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 15,
        "x": 8,
        "y": 47
      },
      "hiddenSeries": false,
      "id": 12,
      "legend": {
        "alignAsTable": true,
        "avg": false,
        "current": true,
        "max": false,
        "min": false,
        "rightSide": true,
        "show": true,
        "total": false,
        "values": true
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "( (avg by (volume) (longhorn_volume_actual_size_bytes))/ (avg by (volume) (longhorn_volume_capacity_bytes)) ) *100",
          "interval": "",
          "legendFormat": "{{volume}}",
          "refId": "A"
        }
      ],
      "thresholds": [
        {
          "$$hashKey": "object:649",
          "colorMode": "critical",
          "fill": true,
          "line": true,
          "op": "gt",
          "value": 90,
          "yaxis": "left"
        }
      ],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Volume Actual Size/Capacity",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:476",
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:477",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Attached volumes are volumes that are currently attaching to a node",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "red",
                "value": null
              },
              {
                "color": "green",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 0,
        "y": 51
      },
      "id": 34,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_state==2) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Attached Volumes",
      "type": "stat"
    },
    {
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Detached volumes are volumes that aren't currently attaching to a node",
      "fieldConfig": {
        "defaults": {
          "custom": {},
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "yellow",
                "value": 1
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 4,
        "y": 51
      },
      "id": 14,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "7.1.5",
      "targets": [
        {
          "expr": "count(longhorn_volume_state==3) OR on() vector(0)",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Number Of Detached Volumes",
      "type": "stat"
    },
    {
      "datasource": null,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "gridPos": {
        "h": 2,
        "w": 23,
        "x": 0,
        "y": 57
      },
      "id": 56,
      "options": {
        "content": "<div class=\"dashboard-header text-center\">\n<span>Volume IO Metrics</span>\n</div>",
        "mode": "html"
      },
      "pluginVersion": "7.1.0",
      "timeFrom": null,
      "timeShift": null,
      "title": "",
      "transparent": true,
      "type": "text"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 11,
        "x": 0,
        "y": 59
      },
      "hiddenSeries": false,
      "id": 44,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_write_throughput",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Write Throughput",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:75",
          "format": "Bps",
          "label": null,
          "logBase": 1,
          "max": "250000000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:76",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 12,
        "x": 11,
        "y": 59
      },
      "hiddenSeries": false,
      "id": 50,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_read_throughput",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Read Throughput",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:887",
          "format": "Bps",
          "label": null,
          "logBase": 1,
          "max": "250000000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:888",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 11,
        "x": 0,
        "y": 68
      },
      "hiddenSeries": false,
      "id": 46,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_write_iops",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Write IOPS",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:166",
          "format": "iops",
          "label": null,
          "logBase": 1,
          "max": "1000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:167",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 12,
        "x": 11,
        "y": 68
      },
      "hiddenSeries": false,
      "id": 52,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_read_iops",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Write IOPS",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:956",
          "format": "iops",
          "label": null,
          "logBase": 1,
          "max": "1000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:957",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 11,
        "x": 0,
        "y": 77
      },
      "hiddenSeries": false,
      "id": 48,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_write_latency",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Write Latency",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:257",
          "format": "ns",
          "label": null,
          "logBase": 1,
          "max": "10000000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:258",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 12,
        "x": 11,
        "y": 77
      },
      "hiddenSeries": false,
      "id": 54,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_volume_read_latency",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Read Latency",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:1147",
          "format": "ns",
          "label": null,
          "logBase": 1,
          "max": "10000000",
          "min": "0",
          "show": true
        },
        {
          "$$hashKey": "object:1148",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "datasource": null,
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "gridPos": {
        "h": 3,
        "w": 24,
        "x": 0,
        "y": 86
      },
      "id": 5,
      "options": {
        "content": "<div class=\"dashboard-header text-center\">\n<span>CPU & MEMORY</span>\n</div>",
        "mode": "html"
      },
      "pluginVersion": "7.1.0",
      "timeFrom": null,
      "timeShift": null,
      "title": "",
      "transparent": true,
      "type": "text"
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 11,
        "x": 0,
        "y": 89
      },
      "hiddenSeries": false,
      "id": 36,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "links": [],
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "(longhorn_node_cpu_usage_millicpu / longhorn_node_cpu_capacity_millicpu) * 100",
          "interval": "",
          "legendFormat": "{{node}}",
          "refId": "A"
        }
      ],
      "thresholds": [
        {
          "$$hashKey": "object:1092",
          "colorMode": "critical",
          "fill": true,
          "line": true,
          "op": "gt",
          "value": 80,
          "yaxis": "left"
        }
      ],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Node CPU Usage/Capacity",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:865",
          "decimals": 0,
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:866",
          "format": "none",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 10,
        "w": 12,
        "x": 11,
        "y": 89
      },
      "hiddenSeries": false,
      "id": 38,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "links": [],
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "( longhorn_node_memory_usage_bytes / longhorn_node_memory_capacity_bytes ) * 100",
          "interval": "",
          "legendFormat": "{{node}}",
          "refId": "A"
        }
      ],
      "thresholds": [
        {
          "$$hashKey": "object:1092",
          "colorMode": "critical",
          "fill": true,
          "line": true,
          "op": "gt",
          "value": 80,
          "yaxis": "left"
        }
      ],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Node Memory Usage/Capacity",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:865",
          "decimals": 0,
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:866",
          "format": "none",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "decimals": 0,
      "description": "Longhorn manager pods manage the control plane of the Longhorn system. e.g. Volume scheduling, attaching, detaching, backup, etc,..",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 11,
        "x": 0,
        "y": 99
      },
      "hiddenSeries": false,
      "id": 2,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_manager_cpu_usage_millicpu",
          "interval": "",
          "legendFormat": "{{manager}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Longhorn Manager CPU Usage",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:1500",
          "decimals": 0,
          "format": "milicpu",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:1501",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "decimals": null,
      "description": "Longhorn manager pods manage the control plane of the Longhorn system. e.g. Volume scheduling, attaching, detaching, backup, etc,..",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 12,
        "x": 11,
        "y": 99
      },
      "hiddenSeries": false,
      "id": 31,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_manager_memory_usage_bytes",
          "interval": "",
          "legendFormat": "{{manager}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Longhorn Manager Memory Usage",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:1500",
          "decimals": null,
          "format": "bytes",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:1501",
          "format": "short",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "decimals": 0,
      "description": "Instance managers are pods that contains the engine and replica processes of Longhorn volumes. See more at https://longhorn.io/docs/1.0.2/concepts/#11-the-longhorn-manager-and-the-longhorn-engine ",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 8,
        "w": 11,
        "x": 0,
        "y": 108
      },
      "hiddenSeries": false,
      "id": 28,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "links": [],
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_instance_manager_cpu_usage_millicpu",
          "interval": "",
          "legendFormat": "{{instance_manager}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Instance Manager CPU Usage",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:865",
          "decimals": 0,
          "format": "milicpu",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:866",
          "format": "none",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Instance managers are pods that contains the engine and replica processes of Longhorn volumes. See more at https://longhorn.io/docs/1.0.2/concepts/#11-the-longhorn-manager-and-the-longhorn-engine ",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 9,
        "w": 11,
        "x": 0,
        "y": 116
      },
      "hiddenSeries": false,
      "id": 30,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "links": [],
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "(longhorn_instance_manager_cpu_usage_millicpu/longhorn_instance_manager_cpu_requests_millicpu)*100",
          "interval": "",
          "legendFormat": "{{instance_manager}}",
          "refId": "A"
        }
      ],
      "thresholds": [
        {
          "$$hashKey": "object:1092",
          "colorMode": "critical",
          "fill": true,
          "line": true,
          "op": "gt",
          "value": 100,
          "yaxis": "left"
        }
      ],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Instance Manager CPU Usage/Request",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:865",
          "decimals": 0,
          "format": "percent",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:866",
          "format": "none",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS-LONGHORN}",
      "description": "Instance managers are pods that contains the engine and replica processes of Longhorn volumes. See more at https://longhorn.io/docs/1.0.2/concepts/#11-the-longhorn-manager-and-the-longhorn-engine ",
      "fieldConfig": {
        "defaults": {
          "custom": {}
        },
        "overrides": []
      },
      "fill": 1,
      "fillGradient": 0,
      "gridPos": {
        "h": 8,
        "w": 11,
        "x": 0,
        "y": 125
      },
      "hiddenSeries": false,
      "id": 29,
      "legend": {
        "avg": false,
        "current": false,
        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
      },
      "lines": true,
      "linewidth": 1,
      "links": [],
      "nullPointMode": "null",
      "percentage": false,
      "pluginVersion": "7.1.5",
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "longhorn_instance_manager_memory_usage_bytes",
          "interval": "",
          "legendFormat": "{{instance_manager}}",
          "refId": "A"
        }
      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
      "title": "Instance Manager Memory Usage",
      "tooltip": {
        "shared": true,
        "sort": 0,
        "value_type": "individual"
      },
      "type": "graph",
      "xaxis": {
        "buckets": null,
        "mode": "time",
        "name": null,
        "show": true,
        "values": []
      },
      "yaxes": [
        {
          "$$hashKey": "object:865",
          "format": "bytes",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        },
        {
          "$$hashKey": "object:866",
          "format": "none",
          "label": null,
          "logBase": 1,
          "max": null,
          "min": null,
          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    }
  ],
  "refresh": "5s",
  "schemaVersion": 26,
  "style": "dark",
  "tags": [],
  "templating": {
    "list": []
  },
  "time": {
    "from": "now-5m",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
      "1m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "1d"
    ]
  },
  "timezone": "",
  "title": "Longhorn Example v1.4.0",
  "uid": "2BCgsldGz",
  "version": 22
}