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Copy space allocation different RAID to what was provisioned
Posted: Wed Sep 25, 2013 9:33 am
by slink
I setup a VV on a RAID1 CPG and set the virtual copy to be on a RAID6 NL CPG however when I look at the settings for the VV the provisioning shows the correct RAID6 CPG but the allocation is all coming from RADI1 on my FC disks. How/why is this happening?
Re: Copy space allocation different RAID to what was provisi
Posted: Fri Sep 27, 2013 12:06 am
by Richard Siemers
What do the settings on your NL_r6_virtualcopy CPG look like?
Re: Copy space allocation different RAID to what was provisi
Posted: Fri Sep 27, 2013 3:46 am
by slink
like this
Re: Copy space allocation different RAID to what was provisi
Posted: Fri Sep 27, 2013 9:23 am
by Richard Siemers
Roger that, do you have any snaps yet that would use the Raid6 space?
Can you use command line/ssh to do a:
showvv -r Hyper-V_CSV3
Its should break out the capacity in detail like this:
-----------------------------(MB)-----------------------------
----Adm----- ----Snp----- -----Usr------ -----Tot------
Id Name Prov Type RawRsvd Rsvd RawRsvd Rsvd RawRsvd Rsvd RawRsvd Rsvd VSize
4001 VMLUN6 tpvv base 768 256 0 0 137088 121856 137856 122112 153600
-----------------------------------------------------------------------------------------
1 total 768 256 0 0 137088 121856 137856 122112 153600
Re: Copy space allocation different RAID to what was provisi
Posted: Fri Sep 27, 2013 12:19 pm
by slink
Thanks for helping me out with this. Yes I have snapshots for this VV being created. I noticed it on a CSV1 but I thought that was because I had originally set the snapshot CPG on the VV to be a RAID1 volume and then moved it to a RAID6 one so I thought it was an issue with the base snapshot being on RAID1 and not being able to be moved. But CSV3 I setup with the virtual copy CPG being the RAID6 right from the start but the VVs are still being created on RAID1 as pictured but I don't know how or why.
Here's the output from that command:
Re: Copy space allocation different RAID to what was provisi
Posted: Fri Sep 27, 2013 3:15 pm
by Richard Siemers
Good news, this looks like it might be a typo in the GUI. I am pretty sure that is suppose to be your ADMIN space, not copy space.
Here is what I see:
- Screen Shot 2013-09-27 at 3.03.02 PM.png (31.6 KiB) Viewed 27609 times
IMC version 4.4.0.23
Re: Copy space allocation different RAID to what was provisi
Posted: Mon Sep 30, 2013 6:26 am
by slink
OK, that seems a bit weird though. Here's a different VV showing what I would expect:
But I think you are right, because in this view I can see the virtualcopy space is being taken from the RAID6 CPG so guess it's just a bug:
Re: Copy space allocation different RAID to what was provisi
Posted: Mon Sep 30, 2013 3:18 pm
by Richard Siemers
What version of the IMC are you using?
Re: Copy space allocation different RAID to what was provisi
Posted: Mon Sep 30, 2013 5:36 pm
by trireed
Are you using AO ? If so its possible it moved some hot Snap regions into the FC space. If your Snap space is part of AO then that is where I believe the confusion is.
Re: Copy space allocation different RAID to what was provisi
Posted: Tue Oct 01, 2013 3:21 am
by slink
I'm using IMC Version 4.3.0.71. Maybe I should upgrade it.
Haven't enabled AO yet. Not sure I want to while I have lots of FC disk available.
