Cisco UCS C240 M5 Service Manual

To replace HHHL form-factor NVMe SSDs in the PCIe slots, see Replacing HHHL Form-Factor NVMe Solid
State Drives, on page 66.
Front-Loading NVMe SSD Population Guidelines
The front drive bay support for 2.5- or 3.5-inch NVMe SSDs differs by server PID:
• UCSC-C240-M5SX—Small form-factor (SFF) drives, with 24-drive backplane. Drive bays 1 and 2
support 2.5-inch NVMe SSDs.
•
• UCSC-C240-M5S—SFF drives, with 8-drive backplane and DVD drive option. Drive bays 1 and 2
support 2.5-inch NVMe SSDs.
• UCSC-C240-M5L—Large form-factor (LFF) drives, with 12-drive backplane. Drive bays 1 and 2 support
2.5-inch and 3.5-inch NVMe SSDs. If you use 2.5-inch NVMe SSDs, a size-converter drive tray
(UCS-LFF-SFF-SLED2) is required for this version of the server.
Front-Loading NVME SSD Requirements and Restrictions
Observe these requirements:
•
The server must have two CPUs. PCIe riser 2C is not available in a single-CPU system. PCIe riser 2C
has connectors for the cable that connects to the front-panel drive backplane.
•
PCIe cable and PCIe riser 2C. This is the cable that carries the PCIe signal from the front-panel drive
backplane to PCIe riser 2C. These two items are kitted as follows:
◦
For small form factor (SFF) versions of the server: CBL-NVME-C240SFF
◦
For large form factor (LFF) versions of the server: CBL-NVME-C240LFF
•
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 2.5- and 3.5-inch 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- or 3.5-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.
Cisco UCS C240 M5 Server Installation and Service Guide
54
Maintaining the Server
Replacing Front-Loading NVMe SSDs

Cisco UCS C240 M5 Specifications

General

Brand	Cisco
Model	UCS C240 M5
Category	Server
Language	English