Cisco UCS C240 M5 Service Manual

Rear-Loading NVME SSD Requirements and Restrictions
Observe these requirements:
•
The server must have two CPUs. PCIe riser 2 is not available in a single-CPU system. PCIe riser 2B or
2C has the connector for the cable that connects to the rear drive backplane.
•
PCIe cable and PCIe riser 2B or 2C. This is the cable that carries the PCIe signal from the rear drive
backplane to PCIe riser 2B or 2C. These items are kitted as follows:
◦
Kit for all server versions; includes rear backplane, fan, and cable: UCSC-RNVME-240M5
◦
PCIe cable only: CBL-NVME-C240RF
•
Hot-plug support must be enabled in the system BIOS. If you ordered the system with NVMe drives,
hot-plug support is enabled at the factory.
Observe these restrictions:
•
NVMe SSDs support booting only in UEFI mode. Legacy boot is not supported. For instructions on
setting up UEFI boot, see Setting Up UEFI Mode Booting in the BIOS Setup Utility, on page 48 or
Setting Up UEFI Mode Booting in the Cisco IMC GUI, on page 48.
•
You cannot control NVMe PCIe SSDs with a SAS RAID controller because NVMe SSDs interface with
the server via the PCIe bus.
•
You can combine NVMe 2.5-inch SSDs and HHHL form-factor SSDs in the same system, but the same
partner brand must be used. For example, two Intel NVMe SFF 2.5-inch SSDs and two HGST HHHL
form-factor SSDs is an invalid configuration. A valid configuration is two HGST NVMe SFF 2.5-inch
SSDs and two HGST HHHL form-factor SSDs.
•
UEFI boot is supported in all supported operating systems. Hot-insertion and hot-removal are supported
in all supported operating systems except VMWare ESXi.
Replacing a Rear-Loading NVMe SSD
This topic describes how to replace 2.5-inch form-factor NVMe SSDs in the rear-panel drive bays.
OS-surprise removal is not supported. OS-informed hot-insertion and hot-removal are supported on all
supported operating systems except VMware ESXi.
Note
OS-informed hot-insertion and hot-removal must be enabled in the system BIOS. See Enabling Hot-Plug
Support in the System BIOS, on page 55.
Note
Step 1
Remove an existing rear-loading NVMe SSD:
a) Shut down the NVMe SSD to initiate an OS-informed removal. Use your operating system interface to shut down
the drive, and then observe the drive-tray LED:
Cisco UCS C240 M5 Server Installation and Service Guide
60
Maintaining the Server
Replacing Rear-Loading NVMe SSDs

Cisco UCS C240 M5 Specifications

General

Brand	Cisco
Model	UCS C240 M5
Category	Server
Language	English