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Growing a Virtual Volume
https://www.3parug.com/viewtopic.php?f=18&t=1057		 Page 1 of 1
Author:  jevans [ Mon Dec 08, 2014 3:24 pm ]
Post subject:  Growing a Virtual Volume
Before I start let me just say I am somewhat of a 3PAR noob. We have a 7400 running 3.1.3 MU1. We have a very basic configuration and I know I am not using the 3PAR to its full potential.

Summary – I have 5TB of RAW space that I want to use to expand two of my virtual volumes by 1 TB each. Based on my reading this should be as simple as a “growvv <vv name> 1t” right?

Details -
My configuration is very simple.

7400 (2) controller config with 8 cages and 80 identical disks.

3 CPG’s to control Raid lvl and some other small stuff like protection level.
CPG_RAID_1
CPG_RAID_5
CPG_RAID_6

1 virtual volume per CPG
VV_RAID_1
VV_RAID_5
VV_RAID_6

All three VV’s are part of a virtual volume set that is exported to a host set that contains all 16 ESXi hosts. There is no boot from SAN and all 3 VV’s are configured as separate vSphere datastores that all ESXi hosts have access to.

So I have 5TB of RAW free space (5465.000 Gib), to add 1 TB of storage to my Raid 1 virtual volume I would issue the following command.

growvv VV_RAID_1 1t

This would increase the capacity of this virtual volume by 1TB and reduce my free space by roughly 2TB because it is raid 1 right?

Note: my VV_RAID_1 is currently 5TB, I am not employing any copy space so my VV_RAID_1 summary right now shows:
User space: 5,120.000GiB
Copy Space: 0.000GiB
Admin Space 0.000 GiB


I was just wondering if there was anything else I was missing that would be service interrupting or any known O rings?
Author:  RitonLaBevue [ Mon Dec 08, 2014 8:27 pm ]
Post subject:  Re: Growing a Virtual Volume
Did you try "growvv VV_RAID_1 1t" ?
What was the return ?

What is the availability of your CPGs ?
Your VVs are fully provisioned (Full, CPVV) or Thin (TPVV) ?

try "showspace -cpg CPG_RAID_1".
What is the return ?
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