Chapter 4. U.2 Nvme Cache Drive Upgrade From 8 To 16; Nvme Cache Drive Upgrade Overview; Identifying The Nvme Drive Manufacturer - Nvidia DGX-2 System Service Manual

Chapter 4.
If you require more than 30 terabytes (useable 28 terabytes) for cache, you can increase the
cache to 60 terabytes (useable 56 terabytes) by adding eight more NVMe drives to the DGX-2
System.
4.1. U.2 NVMe Cache Drive Upgrade
Overview
This is a high-level overview of the steps needed to upgrade the DGX-2 System's cache size.
1. Identify the manufacturer and model of the of currently installed NVMe drives.
2. Place an order for additional eight NVME drives.
3. Power off the system.
4. Install the NVMe drives in the DGX-2 System.
5. Power on the system.
6. Re-initialize the
/raid
4.2. Identifying the NVMe Drive
Manufacturer
1. Identify the drives in the RAID volume.
sudo nvsm show /systems/localhost/storage/volumes/md1
$
Properties
...
Drives = [ nvme2n1, nvme3n1, nvme4n1, nvme5n1, nvme6n1, nvme7n1, nvme8n1,
nvme9n1 }
...
2. Select one of the drives listed in the
enter the following command, where X corresponds to the drive that you selected.
sudo nvsm show /systems/localhost/storage/drives/nvmeXn1
$
Example showing an excerpt of the output for
DGX-2 System
U.2 NVMe Cache Drive
Upgrade from 8 to 16
filesystem to recognize all 16 drives.
Drives=
entry from the previous command, and then
.
nvme5n1
DU-09224-001 _v09 | 11