Patent ID: 9703744
Date: 2017-07-11
CPC Classifications: G06F

Claim:
1. A storage subsystem comprising: a storage controller having a first processor and a second processor; one or more drive slots to which a hard disk drive or a solid state drive having multiple ports are inserted; a first switch and a second switch composed of a PCI-express switch having a port for supporting a downstream port containment (DPC), wherein the first switch connects the solid state drive via the port to the first processor and the second switch connects the solid state drive via the port to the second processor; and a display means for displaying whether removal of the hard disk drive or the solid state drive inserted to the drive slot is enabled or not; wherein when the hard disk drive is inserted to the drive slot, if power supply to the hard disk drive is stopped, the display means displays that removal of the hard disk drive is enabled; when the solid state drive is inserted to the drive slot, if DPC is triggered in both the port of the first switch and the port of the second switch connecting the solid state drive, the display means displays that removal of the solid state drive is enabled.