Every blade we add to the UCS system has its own burned-in hardware ID also known as UUID. UCS is all about the abstraction of hardware-coded IDs with UCS-generated dynamic IDs making it all fully managed by the UCS system.
In this blog, we will be creating a Universal Unique IDentifier (UUID) pool. The UUID is a unique number that gets assigned to each blade server for the service profile to understand which server its referring to.
There could be an instance a specific software license is purchased and tied to the hardware on the blade and in that case, we assign a UUID to it. If the blade is to crash, all we just need to do is to switch the service profile to attach to the new blade and our licenses get moved over.
| Chassis / Slot | Host Name | UUID Prefix | UUID Suffix |
| Chassis 1 / Slot 1 | BLADE01 | 000025b500080001 | .0000.000000008001 |
| Chassis 1 / Slot 2 | BLADE02 | 000025b500080001 | .0000.000000008002 |
| Chassis 1 / Slot 3 | BLADE03 | 000025b500080001 | .0000.000000008003 |
Under Servers tab>Pools >UUID Suffix Pools. Right-click on UUID Suffix Pools and select Create UUID Suffix Pool. Enter a name and description as shown. If derived is chosen, the UCS will create a suffix by itself and if the manual is chosen, we can create our own suffix. Derived is just fine so once done, click Next
Click Add to add UUID Suffix blocks and enter the UUID suffixes that you wish to create and the size. Here size would just mean how many unique IDs we wish to generate.
Our pool of UUID blocks is now added, so lets click Finish
Click OK to finish the wizard
Our UUID pool is shown
No servers are assigned still so we will move on to our next blog
We will use this pool to assign to a service profile later on.