Problem: New expansion enclosure not detected

Determine why a newly installed expansion enclosure was not detected by the system.

When you install a new expansion enclosure, follow the management GUI Add Enclosure wizard. Select Monitoring > System. From the Actions menu, select Add Enclosures.

If the expansion enclosure is not detected, complete the following verifications:

Verify the status of the LEDs at the back of the expansion enclosure. At least one power supply unit must be on with no faults shown. At least one canister must be active, with no fault LED on. Serial-attached SCSI (SAS) ports of Lenovo Storage V7000 Gen1 each have four green link-status LEDS, which must be on for any port in use.
Lenovo Storage V7000 Gen2 has two LEDs per SAS port, one green link-status LED and one amber fault LED. The link status LED of the ports that are in use is on while the fault LED is off.
For details about LED status, see the troubleshooting procedure about understanding system status using the LEDs.
Verify that the SAS cabling to the expansion enclosure is correctly installed. To review the requirements, see the troubleshooting problem description about SAS cabling that is not valid.