In a single CPU-module system, this NVMe-only module is not supported.
Observe these drive population guidelines for optimum performance:
• When populating drives, add drives to the lowest-numbered bays first.
• Keep an empty blanking tray in any unused bays to ensure proper airflow.
Front-Loading NVME SSD Requirements and Restrictions
Observe these requirements:
• 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. See
Enabling Hot-Plug Support in the System BIOS, on page
55
.
Observe these restrictions:
• NVMe 2.5-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-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.
Enabling Hot-Plug Support in the System BIOS
Hot-plug (OS-informed hot-insertion and hot-removal) is disabled in the system BIOS by default.
• If the system was ordered with NVMe PCIe SSDs, the setting was enabled at the factory. No action is
required.
• If you are adding NVMe PCIe SSDs after-factory, you must enable hot-plug support in the BIOS. See
the following procedures.
Procedure
Purpose
Command or Action
Step 1
Enabling Hot-Plug Support Using the BIOS Setup Utility
Step 1
Enter the BIOS setup utility by pressing the
F2
key when prompted during bootup.
Step 2
Navigate to
Advanced > PCI Subsystem Settings > NVMe SSD Hot-Plug Support
.
Cisco UCS C480 M5 Server Installation and Service Guide
55
Maintaining the Server
Front-Loading NVME SSD Requirements and Restrictions