topic Copy CPG`s main function in HPE 3PAR StoreServ Storage

Copy CPG`s main function

Raymond2017 — Mon, 11 Dec 2017 05:51:50 GMT

Hi Team

May somoene please tell me what is the main function of a CopyCPG on 3PAR? Do you really need to have copy CPG?

Re: Copy CPG`s main function

yapkl — Mon, 11 Dec 2017 06:00:49 GMT

If you want to create snapshots, the copy CPG is used to store the deltas from the snapshots. You could use the same CPG as the parent volume or use a different CPG (for reporting purpose, or different disk types/RAID levels). If you didn't define a copy CPG, you won't be able to create snapshots for that volume.

Re: SNAP CPG's main function

Dennis Handly — Mon, 11 Dec 2017 17:30:24 GMT

> If you didn't define a copy CPG, you won't be able to create snapshots for that volume.

You can always add a snap CPG later with setvv.