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Reconfiguring defined VOL0 on snapserver 4500

Posted on 2013-01-11
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Last Modified: 2013-01-22
I have a SnapServer 4500 running GuardianOS-4.1.106. All 4 drives are configured into a RAID5 group. There is a single volume created which uses all available storage and 1 share defined.

I need to reconfigure the storage to create multiple smaller volumes.

All data has been removed from the share and the server has been rebooted. When I try and delete VOL0, I get the following error:

VOL0 deletion failed. Failed to unmount the volume.

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When I try and delete the RAID group, I get the following:

md0: RAID Set deletion Failed. Unable to unmount one or more volumes on this RAID Set.

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How can I reconfigure the appliance to create multiple volumes?

500 points as I'm trying to get this working before Monday, 1/14.

Thanks in advance for any assistance.

John  88{Q
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Question by:tcengineer
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Expert Comment

by:arnold
ID: 38770540
My guess will be that you first must undefined the share to delete the volume.

I suspect what you want to end up with does not need the deletion of the volume, but the creation of multiple shares with imposition of quotas on the space.
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tcengineer earned 0 total points
ID: 38770903
Arnold,

I tried your recommendation and kept VOL0 untouched (which uses the entire available storage space), created to shares under VOL0 and created 2 users. I then applied quotas to each user, allowing 1/2 the space to one user and 1/2 to the other user.

I am exporting the shares via NFS. I then mount 1 share onto 1 system and the other share onto another system.

Running "df" on the linux systems shows the entire volume space on each linux system.

Quotas are on a per-user basis so I'm a bit confused how that would work. Can you explain how I can limit usage?

Thanks,

John  88{Q
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by:arnold
ID: 38770950
Once you delete the defined shares, you should be able to delete, but looking at the manual it does not seem that the functionality you want is available using the interface provided.  The share while reflecting the total size of the volume capacity, will enforce the quota restriction by user or group.

Part of the setup includes a snapshot configuration and has the raid volume split 80/20 data/snapshot.
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Expert Comment

by:arnold
ID: 38771030
You can try creating a file in excess the allotted quota as a test.
Stup a user with quota of 100mb
mkfile 200m testfilename
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Author Closing Comment

by:tcengineer
ID: 38804825
Arnold,

I don't know which user on the machine writes to the share so creating individual volumes to mount to machines seems the best way to go as the configured volume size would limit the amount of data written to it by an user on the system the volume is mounted to.

Also, the mounted share shows the amount of space for the entire volume, which is confusing to the users.

Since I can't seem to redefine the volumes on the snapserver, I'd be happy with resetting the snapserver to the factory defaults but I can't seem to find a way to do that either.

I appreciate the time you took to address this issue but I think I'm stuck.

Thanks,

John  88{Q
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