Nvme Ssd Requirements And Restrictions; Hot Plug Considerations; Removing A Drive - Cisco UCS X10c Installation And Service Manual

NVMe SSD Requirements and Restrictions

NVMe SSD Requirements and Restrictions
For 2.5-inch NVMe SSDs, be aware of the following:
• NVMe 2.5 SSDs support booting only in UEFI mode. Legacy boot is not supported.
• NVMe PCIe SSDs cannot be controlled with a SAS RAID controller because NVMe SSDs interface
• UEFI boot is supported in all supported operating systems.

Hot Plug Considerations

Enabling Hot Plug Support
Surprise and OS-informed hot plug is supported with the following conditions:
• VMD must be enabled to support hot plug. VMD must be enabled before installing an OS on the drive.
• If VMD is not enabled, surprise hot plug is not supported, and you must do OS-informed hot plug instead.
• VMD is required for both surprise hot plug and drive LED support.

Removing a Drive

Use this task to remove a U.2 NVMe drive from the front mezzanine GPU module.
Caution
Step 1 Push the release button to open the ejector, and then pull the drive from its slot.
To prevent data loss, make sure that you know the state of the system before removing a drive.
Caution
Cisco UCS X10c Front Mezzanine GPU Module Installation and Service Guide
22
UEFI boot mode can be configured through the Boot Order Policy setting in the Server Policy supported
by Cisco Intersight Managed Mode (IMM). For instructions about setting up UEFI boot mode through
Cisco IMM, go to:
Cisco Intersight Managed Mode Configuration Guide
with the server via the PCIe bus.
Do not operate the system with an empty drive bay. If you remove a drive, you must reinsert a drive or cover
the empty drive bay with a drive blank.
Servicing the GPU Module