Replacing Hhhl Form-Factor Nvme Solid State Drives; Hhhl Ssd Population Guidelines; Hhhl Form-Factor Nvme Ssd Requirements And Restrictions; Replacing An Hhhl Form-Factor Nvme Ssd - Cisco UCS C240 M5 Installation And Service Manual

Replacing HHHL Form-Factor NVMe Solid State Drives

1 Rear fan location on rear drive cage
Replacing HHHL Form-Factor NVMe Solid State Drives
This section is for replacing half-height, half-length (HHHL) form-factor NVMe SSDs in the PCIe risers.

HHHL SSD Population Guidelines

Observe the following population guidelines when installing HHHL form-factor NVMe SSDs:
• Two-CPU systems—You can populate up to 6 HHHL form-factor SSDs, using PCIe slots 1 – 6.
• One-CPU systems—In a single-CPU system, PCIe riser 2 is not available. Therefore, the maximum

HHHL Form-Factor NVME SSD Requirements and Restrictions

Observe these requirements:
• All versions of the server support HHHL form-factor NVMe SSDs.
Observe these restrictions:
• You cannot boot from an HHHL form-factor NVMe SSD.
• You cannot control HHHL NVMe SSDs with a SAS RAID controller because NVMe SSDs interface
• You can combine NVMe SFF 2.5- or 3.5-inch SSDs and HHHL form-factor SSDs in the same system,

Replacing an HHHL Form-Factor NVMe SSD

In a single-CPU server, PCIe riser 2 (PCIe slot 2) is not available.
Note
Step 1 Remove an existing HHHL form-factor NVME SSD (or a blank filler panel) from the PCIe riser:
a) Shut down and remove power from the server as described in
on page 39.
Cisco UCS C240 M5 Server Installation and Service Guide
66
number of HHHL form-factor SSDs you can populate is 3, using PCIe slots 1 - 3.
with the server via the PCIe bus.
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.
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Shutting Down and Removing Power From the Server,
Maintaining the Server