A UUID is a 128-bit number assigned to every compute node on a network to identify the compute node globally. The UUID is denoted as 32 hexadecimal numbers. In the Cisco UCSM, a server UUID can be generated using the UUID suffix pool. The UCSM software generates a unique prefix to ensure that the generated compute node UUID is unique.

Operating systems including hypervisors and some applications may leverage UUID number binding. The UUIDs generated with a resource pool are portable. In case of a catastrophic failure of the compute node, the pooled UUID assigned through a service profile can be easily transferred to a replacement compute node without going through complex firmware upgrades.

The following are the steps to create UUIDs for blade servers:

1. Log in to UCSM.
2. Click on the Servers tab in the navigation pane.
3. Click on the Pools tab and expand root.
4. Right-click on UUID Suffix Pools, and click on Create UUID Suffix Pool, as shown in the following screenshot:

5. In the pop-up window, assign the Name and Description values to the UUID pool.
6. Leave the Prefix value as Derived to make sure that UCSM makes the prefix unique.

7. The selection of Assignment Order as Default is random. Select Sequential to assign the UUID sequentially.
8. Click on Next, as shown here:

9. Click on Add on the next screen.
10. In the pop-up window, change the value for Size to create a desired number of UUIDs.
11. Click on OK and then on Finish, as shown here:

12. In order to verify the UUID suffix pool, click on the UUID Suffix Pools tab in the navigation pane and then on the UUID Suffixes tab in the work pane: