Other installed components affect how many PCIe slots are open to use. For
example:
• If the auxiliary, internal drive module is installed, PCIe slot 12 is not available
because of internal clearance.
• If the server has a rear RAID controller card, it must be installed in PCIe
slot 11 (or slot 10 in single CPU-module systems).
• If the server has a rear NVMe switch card, it must be installed in PCIe slot
10.
Note
• Single CPU-Module systems—In a single CPU-module system (CPU module 2 is not present), PCIe
slots 3, 4, 6, 7, 11, and 12 are not available. Therefore, the maximum number of HHHL form-factor SSDs
you can populate is 6, using only PCIe slots 1, 2, 5, 8, 9, and 10.
PCIe Slots Supported
Number of CPU Modules
1 - 12 (all)
Dual CPU-Module System (4 CPUs)
1, 2, 5, 8, 9, 10
Single CPU-Module System (2 CPUs)
HHHL Form-Factor NVME SSD Restrictions
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
with the server via the PCIe bus.
• You can combine NVMe SFF 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.
Replacing HHHL NVMe Drives
Step 1
Prepare the server for component installation:
a) Shut down and remove power from the server as described in
Shutting Down and Removing Power From the Server,
on page 35
.
b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.
If you cannot safely view and access the component, remove the server from the rack.
Caution
c) Remove the top cover from the server as described in
Removing the Server Top Cover, on page 37
.
Step 2
Remove any existing HHHL drive from the slot (or a blanking panel):
a) Open the hinged retainer bar that covers the top of the PCIe slot from which you are removing the HHHL drive.
Cisco UCS C480 M5 Server Installation and Service Guide
62
Maintaining the Server
HHHL Form-Factor NVME SSD Restrictions
Содержание UCS C480 M5
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