rghosh8/supportGPT_data huggingface dataset:
### Human: Can you tell about VM migration on AHV cluster may fail with "Host CPU does not provide required features by guest: monitor" error. ### Assistant: After adding new Lenovo hosts or hosts with Intel Xeon Gold 61xx or Xeon Silver 41XX CPUs to an existing cluster, VM migration to these hosts may fail with the error message "Host CPU does not provide required features by guest: monitor.". After adding new Lenovo hosts or hosts with Intel Xeon Gold 61xx or Xeon Silver 41XX CPUs to an existing cluster, VM migration to these hosts may fail with the error message "Host CPU does not provide required features by guest: monitor." as seen on Tasks page in Prism UI.

~/data/logs/acropolis.out shows the error below:

2018-08-23 15:04:55 INFO base_task.py:611 Task VmMigrate fabf5884-9a85-40be-b6e1-ff652913d232 failed with message: Host CPU does not provide required features by guest:  monitor. This could be due to the MONITOR/MWAIT feature either missing or disabled from the host BIOS. Lenovo servers may have this feature disabled by default.Boot the host into BIOS Setup and enable the MONITOR/MWAIT feature. Below are sample screenshots of BIOS CPU/processor configuration screens where the MONITOR/MWAIT feature can be located and enabled.





Save changes and exit BIOS Setup. VMs should now be able to migrate to this host.NOTE: If the MONITOR/MWAIT option is greyed out and you cannot change it you will need to go into the BIOS option for Operating Mode and set it to "CUSTOM" which will enable MONITOR/MWAIT.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Deleted VM disk attached to Windows VM is accessible from guest OS. ### Assistant: A deleted VM disk attached to a Windows VM may be accessible from within the guest OS.. When a VM disk, attached to a Windows VM running on AHV, is deleted from Prism UI may still be online and accessible within the guest OS via File Explorer even after deletion.Performing a refresh operation from the Windows Disk Management utility changes the disk status to "Not Initialized", but the disk is still mounted and accessible from the guest OS.. To completely remove the disk from the Windows guest OS, we need to perform a "Rescan Disks" operation from the Windows Disk Management utility.To perform a rescan operation, follow the steps below.
Open Disk Management utility in the guest OS.Open the "Action" menu in the Disk Management utility.Select "Rescan Disks".



The deleted disk should now be completely removed from the guest OS.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about VMware vCLS insfrature VMs and Robo licenses. ### Assistant: ROBO 1.0 Licensing Model and VMware vCLS infrastructure. ROBO 1.0 licenses (Per-VM licensing) are sold according to a VM count.  ROBO licenses may be purchased based on how many VMs are planned to run within a particular cluster.*Note: This count does not include the Nutanix CVMs and the powered-off VMs. As of VMware vSphere version 7.0 Update 1, an additional VMware Management VM called "VMware vCLS infrastructure" was added. It is responsible for the new vSphere Cluster Services feature. This KB explains why this VMware Management VM is included in the VM count for ROBO licenses even though it is not a user VM.. The "VMware vCLS infrastructure" VM will be counted under the ROBO licensing because it is a VMware management VM; it is not a Nutanix management VM.
Please refer to the screenshot and documentation below for more information. vSphere Cluster Services (vCLS) in vSphere 7.0 Update 1 and newer versions (80472). ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Unable to connect to Prism Central, getting error "Failed to send request to IAMv2". ### Assistant: Unable to connect to Prism Central, getting error "Failed to send request to IAMv2". Versions Affected:

Prism Central (PC) version pc.2023.1.0.1

Symptoms:

Prism Element (PE) cluster is unable to connect to Prism Central.PC-UI login is failing with the following message:
	upstream connect error or disconnect/reset before headers
	All cluster services are up and running, but unable to log in to PC.PC /home/nutanix/data/logs/aplos_engine.out shows the following errors:
	upstream connect error or disconnect/reset before headers
	/home/nutanix/data/logs/prism_gateway.log shows the following:
	upstream connect error or disconnect/reset before headers
	iam pod is in crash loop.
	upstream connect error or disconnect/reset before headers
	. Workaround:

Log in to the Prism Central node where the issue is seen and reboot it using the following command:

nutanix@PCVM$ sudo reboot. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Nutanix DR | AOS 6.5.2.x stuck arithmos replication stats when there are no active replications. ### Assistant: AOS 6.5.2.x stuck arithmos replication stats when there are no active replications. In Protection Summary,Replication Tasks dashboard ongoing tasks shows incorrect number.. In PC, Protection summary global view, under Replication Tasks dashboard, ongoing replication count increments.
To identify the issue, login to PC, go to Protection summary global view, under Replication Tasks dashboard, ongoing replication count keep increments but when you check the current active replications on the corresponding PE clusters, you will see sometimes no replications or very few replications in progress.  

From the PE clusters, we can verify the ongoing replications using ncli

nutanix@cvm:~$ ncli pd ls-repl-status protection-domain-type=entity-centric
 

Login to PC, go to Protection summary global view, under Replication Tasks dashboard, check ongoing replication count
 . Please reach out to Nutanix Support to reset the stats for stuck replications.
 . ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Nutanix Files: Unable to join domain due to 'constraint violation'. ### Assistant: Unable to join Nutanix Files to AD domain due to duplicate SPNs existing in the AD forest.. If there is an AD SPN with the duplicate name as the Nutanix Files server or FSVMs in the Active Directory domain or forest, the below error will be presented.
Join AD failed with error - Failed to set Service Principal Names (SPN) entries on the AFS machine account due to 'constraint violation'. 
To validate, run the below command on a Domain Controller to attempt to manually create a SPN for Nutanix Files as a test.
Join AD failed with error - Failed to set Service Principal Names (SPN) entries on the AFS machine account due to 'constraint violation'. 
Example

Join AD failed with error - Failed to set Service Principal Names (SPN) entries on the AFS machine account due to 'constraint violation'. 
You will get the below error if there is a duplicate object in the domain or the forest.

Join AD failed with error - Failed to set Service Principal Names (SPN) entries on the AFS machine account due to 'constraint violation'. 
 . The solution is to rename the Nutanix Files server to a unique name and then rejoin Nutanix Files to the AD domain.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Move: How to move a VM from one cluster to another. ### Assistant: How to move a VM from one cluster to another. There are several ways to move a VM from one cluster to another.. To move a VM from a non-Nutanix cluster to a Nutanix cluster, use Nutanix Move available on the Nutanix Portal.
	Nutanix Move is a cross-hypervisor mobility solution to move VMs with minimal downtime.
	To move a VM from one Nutanix cluster to another, use Asynchronous Disaster Recovery Between On-Premise Data Centers.
	Summary of steps:

	Configure a Remote Site on cluster A.Create a Protection Domain on cluster A.Add the VM to be moved to this Protection Domain.Power off the VM.Create a schedule for (N) hours temporarily and initiate a full replication.After replication is complete, restore the VM from snapshot on cluster B and power on the VM.Unprotect the VM from Protection Domain, delete the schedule, snapshots and Protection Domain on cluster A.Un-configure the Remote Site on cluster A.

	The same result can be achieved using Asynchronous Entity Centric Replication using Leap. Check the following documentation for more details.
	To move a VM from an AHV to an ESXi cluster, export it in .ova format from the source and import it in the target cluster.
	Summary of steps:

	For AOS 5.18 or newer:
		
			Select the Export as OVA action from the Actions dropdown list on Prism Central UI. For more details on how to perform the Disk export, refer to Exporting VM as an OVA in the OVA Management section of the Prism Central Infrastructure Guide.
			

		For AOS versions prior to 5.18:

		Follow the steps described in the Solution part of KB 3059.
		Deploy the exported VM into the ESXi cluster using the steps described in the following VMware documentation.
	From AOS 5.19, the VM can be Cross Cluster Live Migrated using Leap and AHV SyncRep. Check the following documentation for more details.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Move : Online upgrades from newly deployed Move 4.1.0 appliances are not working. ### Assistant: This article describes an issue where online upgrades from newly deployed Move 4.1.0 VMs are not working.. Online upgrades from newly deployed Move 4.1.0 VMs are not working.

Troubleshooting:

SSH to the Move VM. (See Accessing Move VM with SSH.)

Run the /opt/xtract-vm/scripts/check_upgrade_connectivity.sh script. It shows the error "curl: no URL specified!"

For example:

admin@move on ~ $ sh /opt/xtract-vm/scripts/check_upgrade_connectivity.sh. This issue is fixed in Move 4.1.2. Use Move 4.1.2 or later.

Workaround:

Perform the following steps:

SSH to the Move VM.Type the rs command and enter the password.Open the check_upgrade_connectivity.sh file in an editor and delete the contents of the file.
	admin@move on ~ $ vi /opt/xtract-vm/scripts/check_upgrade_connectivity.sh
	Copy and paste the following content:
	admin@move on ~ $ vi /opt/xtract-vm/scripts/check_upgrade_connectivity.sh
	Retry Upgrade Software from the Move UI.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Move: Update of a storage container may fail if this container has a container filesystem whitelist configured. ### Assistant: Update of a storage container may fail after 5 minutes with "stream timeout" or "Http Request to endpoint 127.0.0.1:9080 failed with error.Response status:1" if this container has a container filesystem whitelist configured.. Update of a storage container that has container level filesystem (NFS) whitelist may fail with one of the following messages appearing after 5 minutes:

Oops - Server error

Or:

Oops - Server error

Errors observed

In Prism Element, when updating the container, an error “stream timeout” or “Http Request to endpoint 127.0.0.1:9080 failed with error. Response status:1” appears.
	

	Or:

	
	nCLI command takes several minutes to execute, followed by the error:
	Oops - Server error
	Nutanix Move appliance may fail to configure AOS filesystem whitelist with the following error:
	Oops - Server error
	The following errors can also be found in ~/data/logs/prism_gateway.log on the Prism leader:
	To identify the Prism leader CVM, see KB 1841.

	Oops - Server error
	
Workflow of modifying "Filesystem Whitelists" of a container

Prism Gateway makes an API call to genesis to update the whitelists of the container when the container "Filesystem Whitelists" is configured to add Move IP aa.bb.cc.dd. The request will be logged to prism_gateway.log. The following example is to add Move IP aa.bb.cc.dd to "Filesystem Whitelists" of a container.

Oops - Server error

Genesis internally makes a call to modify Firewall. Events are logged to genesis.out

Oops - Server error
 . Nutanix Engineering is aware of the issue and is working on a fix in a future release.

Workaround 1To work around the issue, you need to delete a per-container filesystem whitelist.

Note: If you have active external clients that still need access to the container over NFS/SMB (e.g. Move appliance), make sure that you update Global Filesystem with all IP addresses from the container filesystem whitelist before proceeding with the workaround. When a container filesystem whitelist is removed, a global AOS filesystem whitelist will be used and some clients may lose access to the container if they are not whitelisted on the cluster level. Refer to the documentation for more information on Filesystem Whitelists.

In Prism Element, select Storage from the pull-down main menu (upper left of screen) and then select the Table and Storage Container tabs.Select the storage container in question and then click the Update button.Find Filesystem Whitelist in the Advanced Settings of the container.Empty Filesystem Whitelist text box and click the Save button.Once the task completes, you can retry the operation that was failing before.

In case the steps described in this article do not resolve the issue, consider engaging Nutanix Support for further investigation.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Pre-upgrade Check: AOS Upgrade (test_sha_mac_ssh_config). ### Assistant: This pre-upgrade check runs during an AOS upgrade. It confirms that no hosts on your cluster are configured to only accept deprecated SSH ciphers, and flags any such hosts.. test_sha_mac_ssh_config is a pre-upgrade check that runs during AOS upgrades. It checks whether your hypervisor is configured to use the proper SSH ciphers. Starting with AOS 5.15.2 and 5.17.x, we start to enforce the use of sha2 ciphers for SSH and without your host configured to accept this cipher the upgrade will stall on the affected host. You need to correct this problem before starting the upgrade.Error messages generated on UI by this check:
Host(s) : [u'x.x.x.x'] configured to only accept deprecated SSH ciphers, Please refer KB 9730
On any CVM, you can run the following command to confirm which SSH ciphers are being accepted by your hypervisor

nutanix@cvm$ hostssh 'grep "^MACs" /etc/ssh/sshd_config'
The expected value currently for hosts with CVMs running AOS 5.15.2+ and 5.17.1+ are MACs hmac-sha2-256,hmac-sha2-512,hmac-sha1. Manually updating the sshd config:

On each host which is reported by the pre-check, do the following

SSH to the hypervisorEdit the /etc/ssh/sshd_config file with vi or other text editorFind the line which starts with "MACs" such as this 
	MACs hmac-sha1,hmac-sha1-96
	Change the line to reflect the newer SSH ciphers:
	MACs hmac-sha1,hmac-sha1-96
	

 . ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about How to obtain the SEL output from the IPMI or CLI. ### Assistant: The SEL (System Event Log) output is an indispensable asset in countless scenarios, serving as a vital resource for pinpointing the underlying causes of issues, devising effective solutions, and conducting thorough hardware diagnostics. This article will provide comprehensive guidance on retrieving this information through the user-friendly web GUI and the command line interface.. Frequently, when troubleshooting hardware issues it becomes necessary to obtain the SEL or System Event Log output. Nutanix support has the option to retrieve this information from Insights. However, there are instances where Pulse is not enabled or the command fails to run successfully. This article aims to provide customers with a set of instructions to obtain the SEL output either through the webUI (IPMI) or the command line (CLI).. Navigating to the IPMI from Prism Element: 

Prism Element > Hardware > Diagram > select the Node for the IPMI you want to access > IPMI should be hyperlinked

You can also obtain the IPMI address from the CLI with the following command: 

nutanix@cvm:~$ panacea_cli show_all_ips

Note: If you need to update or change your password to the IPMI, click here for instructions how.

Option 1: Downloading the SEL output from the WebUI

In G5, G6 and G7 IPMI, you will find the SEL output under Server Health > Health Event Log

To download the output as a .csv file you will click 'Save' highlighted in red. 

In G8 IPMIs, the SEL output can be found by expanding System > Health Event Log

To download the output as an excel file you will click 'Export to Excel' highlighted in red

 

Option 2: Gathering the SEL output from the CLI

AHV

nutanix@cvm:~$ panacea_cli show_all_ips
ESXi

nutanix@cvm:~$ panacea_cli show_all_ips
Hyper-V

nutanix@cvm:~$ panacea_cli show_all_ips. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Pre-check: test_is_nos_upgrade_supported_on_esx. ### Assistant: The pre-check test_is_nos_upgrade_supported_on_esx verifies if the version of ESXi hosts on the cluster is supported on the target AOS version.. test_is_nos_upgrade_supported_on_esx check is a pre-upgrade check that verifies if the version of ESXi hosts on the cluster is supported on the target AOS version.

The pre-check may fail if the ESXi version is lower than 6.7.0 and the target AOS version for the upgrade is 5.18 or above for STS or 5.15.3 or above for LTS, with the failure message below:

Host x.x.x.x is running on ESXi version 6.5.0 which is lower than supported version 6.7.0. Upgrade host, Please refer KB 9646. Make sure the ESXi version is 6.7.0 or above before upgrading AOS to 5.18 or above for STS or 5.15.3 or above for LTS.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about CVM services won't start after the Hardware replacement for VMware NSX Enabled ESXi servers. ### Assistant: Customer has VMware Infrastructure and using the SDN (Software Defined Networking) solution NSX-V for DFW (Distributed Firewall) or Guest Introspection features. When there is hardware replaced like a DIMM or SATADOM, VMware Administrator remove the ESXi host from NSX solution which generally removes the CVM from the exclusion list in the NSX solution. After the hardware part is replaced, we notice the communication between CVM & ESXi via 192.168.x.x network is broken and services can't start with ssh key based messages in the genesis.out log file.. CVM services failed to start with the below symptoms:The /home/nutanix/data/logs/genesis.out will show the following:
nutanix@cvm:~$ tail -f genesis.out
Running the fix_host_ssh fails to fix this issue:
nutanix@cvm:~$ tail -f genesis.out
CVM failed to communicate via the eth1 network interface to the ESXi host. 
nutanix@cvm:~$ tail -f genesis.out
The steps below steps do not resolve the issue:
Re-create the vmk1 and check the communicationRe-create vSwitchNutanix but failed to communicateInject the Static route via the arp commandReboot the CVM and enabled/disabled the NIC2 for CVM - tried network services restartReboot the ESXi host. Confirm that CVM is part of the exclusion list:Procedure:

Navigate to Exclusion List settings.
	In NSX 6.4.1 and later, navigate to Networking & Security > Security > Firewall Settings > Exclusion List.In NSX 6.4.0, navigate to Networking & Security > Security > Firewall > Exclusion List.
	Click Add.Move the VMs (CVM with services issue) you want to exclude to Selected Objects.Click OK.
Reference. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about Windows Server 2008 R2 VM on non-AHV hypervisor boots into recovery mode when VirtIO is uninstalled. ### Assistant: Uninstalling VirtIO 1.1.6 or higher from Windows Server 2008 R2 VM on non-AHV hypervisor makes Windows boots into recovery mode.
Also, Migrating Windows Server 2008 R2 VM by Nutanix Move 4.2.1 or higher from ESXi/Hyper-v makes the source VM boots into recovery mode.. Uninstalling VirtIO 1.1.6 or higher from Windows Server 2008 R2 VM on non-AHV hypervisor makes Windows boots into recovery mode.Also, Migrating Windows Server 2008 R2 VM by Nutanix Move 4.2.1 or higher from ESXi/Hyper-V makes the source VM boots into recovery mode.. Perform the following steps to recover the VM:
Press F8 key during the VM powering up to show Windows advanced boot options.Select "Disable Driver Signature Enforcement".	Windows boots up normally.Start Registry Editor. Click on the Start button and search for regedit.exe.Delete "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\vioscsi" branch.Reboot Windows and confirm Windows boots up normally.. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.
### Human: Can you tell about On mixed-hypervisor cluster with AHV storage-only nodes, VM management fails with error "Error occurred while getting network list". ### Assistant: VM management in a mixed hypervisor cluster fails to due to a missing entry in /etc/nutanix/hardware_config.json on AHV storage-only nodes. VM create or update operations on mixed ESXi+AHV clusters may fail with the following error:

Error occurred while getting network list

This issue can typically occur after cluster expansion and adding AHV storage-only nodes.

the following error can be found in the /home/nutanix/data/logs/uhura.out log:

Error occurred while getting network list

The minimal_compute_node field is missing in the /etc/nutanix/hardware_config.json file on the storage-only CVMs:

Error occurred while getting network list

To check all nodes, run the following command:

Error occurred while getting network list. Starting from AOS 6.1 it is possible to select HCI or Storage-only node ензу while expanding a cluster. HCI to Storage-only or Storage-only to HCI node conversion is taken care of by the Expand cluster operation itself. Remove affected nodes from the cluster and re-add them while selecting the correct node type.In case removing the node is not possible due to space constraints, consider engaging Nutanix Support. ### Human: Now explain this as a Nutanix support agent summarizing the answer step by step. In case, you don't know the answer say - I don't know.