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Chapter 7. U.2 NVMe Cache Drive
This section describes the tasks that you typically need to perform after replacing a U.2 NVMe drive.
7.1. Recreating the Cache RAID 0 Volume
1.
Power on the system and log in.
2.
Confirm that all expected drives are visible:
sudo nvme list
The output can indicate two boot drives and eight cache drives, depending on how many are
installed in the system.
Example Output
Node
Namespace Usage
→
---------------- -------------------- ---------------------------------------- ---
------ -------------------------- ---------------- --------
→
∕dev∕nvme0n1
3.84
→
∕dev∕nvme1n1
3.84
→
∕dev∕nvme2n1
44.44
→
∕dev∕nvme3n1
45.18
→
...
3.
If the cache volume was locked with an access key, unlock the drives:
sudo nv-disk-encrypt disable
The disk encryption packages must be installed on the system. Refer to the
User Guide
for more information.
Recreate the cache volume and the ∕raid filesystem:
4.
configure_raid_array.py -c -f
Post-Installation Tasks
SN
S4YPNE0N200093
TB ∕
3.84
TB
S4YPNE0N200040
TB ∕
3.84
TB
S436NA0N106764
GB ∕
1.92
TB
S436NA0N106850
GB ∕
1.92
TB
Model
Format
SAMSUNG MZWLJ3T8HBLS-00007
512
B +
0 B
EPK9CB5Q
SAMSUNG MZWLJ3T8HBLS-00007
512
B +
0 B
EPK9CB5Q
SAMSUNG MZ1LB1T9HALS-00007
512
B +
0 B
EDA7602Q
SAMSUNG MZ1LB1T9HALS-00007
512
B +
0 B
EDA7602Q
FW Rev
NVIDIA DGX H100
1
1
1
1
43
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