Unable to set a Volume ONLINE

DAGOSTINOALN · ‎2012-02-09

We have just replaced a faulty HD into a FAS2020 we set the volume OFFLINE and we allocate the new HD when we tried to set the Volume back online we had this error message.

We believe that it can not be a problem of space because the volume prior the HD change was storing just 450GBytes of data...

Any Idea...?

Regards,

Please find here below the screenshot for your convenience.

login as: root

root@128.1.0.100's password:

RSVNAS01> aggr status

Aggr State Status Options

aggr0 online raid_dp, aggr root

RSVNAS01> vol status

Volume State Status Options

vol0 online raid_dp, flex root, create_ucode=on,

convert_ucode=on

vol_cifs offline raid_dp, flex

RSVNAS01> vol online vol_cifs

vol online: Unable to online volume as space cannot be guaranteed for the volume .

RSVNAS01> vol status

Volume State Status Options

vol0 online raid_dp, flex root, create_ucode=on,

convert_ucode=on

vol_cifs offline raid_dp, flex

RSVNAS01> vol online vol_cifs

vol online: Unable to online volume as space cannot be guaranteed for the volume.

bsti · ‎2012-02-09

This may occur if you have your space guarantee on your volume set to "volume", but not enough space in the aggregate to accommodate the full volume size. Space and fractional reserve can play into this too. Can you post the results of the following commands?

aggr status show space -g

df -g

vol status -v

snap reserve -V (CAPITAL V)

This should help us determine if this is the case exactly. If all you did was replace a HDD of the same size then I'm not sure offhand why this would happen. WHen your previous HDD went bad your hot spare should have replaced it automatically (assuming you had one) and nothing should have changed size-wise.

DAGOSTINOALN · ‎2012-02-09

I've run the commands that you send to me please find here below the results:

RSVNAS01> aggr show_space -g

Aggregate 'aggr0'

Total space WAFL reserve Snap reserve Usable space BSR NVLOG

4138GB 413GB 186GB 3538GB 0GB

Space allocated to volumes in the aggregate

Volume Allocated Used Guarantee

vol0 20GB 0GB volume

vol_cifs 204GB 204GB (offline)

Aggregate Allocated Used Avail

Total space 224GB 205GB 3313GB

Snap reserve 186GB 0GB 185GB

WAFL reserve 413GB 0GB 413GB

RSVNAS01> df -g

Filesystem total used avail capacity Mounted on

/vol/vol0/ 16GB 0GB 15GB 2% /vol/vol0/

/vol/vol0/.snapshot 4GB 0GB 3GB 1% /vol/vol0/.snapshot

RSVNAS01> vol status

Volume State Status Options

vol0 online raid_dp, flex root, create_ucode=on, convert_ucode=on

vol_cifs offline raid_dp, flex

RSVNAS01> snap reserve -V

Volume vol0: current snapshot reserve is 20% or 4194304 k-bytes.

bsti · ‎2012-02-09

THis should bring it online:

vol options vol_cifs guarantee none

vol online vol_cifs

The only concern I have is that you *should* be able to use a volume guarantee on this volume given the space you have available and I'm wondering why it's not allowing it. You probably should not leave the guarantee at none or you may run into issues down the road if the volume grows.

Please rerun the commands I gave you above and report the output once the vol_cifs is online. Unfortunately, I can't see the options I need to when it's offline.

DAGOSTINOALN · ‎2012-02-09

Bad Luck...

RSVNAS01> vol options vol_cifs guarantee none

Vol options: Volume 'vol_cifs' is not online

RSVNAS01> vol online vol_cifs

vol online: Unable to online volume as space cannot be guaranteed for the volume

wilsj · ‎2012-02-09

This means they have thin-provisioned the volume, and the containing aggr now does not have enough space to meet the garantee to volume. So it offlines the vol as a way of protecting the data.

Consider a scenario where you have a 100 GB aggr, If you thin provision, you could have (3) 50 GB volumes with no space guarantee online at the same time. Great! Make it appear to the users like you have space, add the disks to actually have the space later.

However, if you set the space garantee to "volume" you have to have all that space available NOW as a way of protecting that data. If you can't guarantee that space, you will see the error you got. It simply will not online the volume.

bsti · ‎2012-02-10

Try onlining the volume with the -f option.

vol online [vol name] -f

https://kb.netapp.com/support/index?page=content&id=2011520

Once you get the volume online though, I highly recommend finding out what is taking the extra space and removing it so you can get your volume guarantee back.

DAGOSTINOALN · ‎2012-02-12

Using the last command that you guys posted I finally get the volume online here are the results:

vol online vol_cifs -f

Mon Feb 13 08:14:09 CET [RSVNAS01: wafl.vol.guarantee.fail:error]: Space for vol ume vol_cifs is NOT guaranteed.

Share MSSData activated.

Share Snapshot activated.

Mon Feb 13 08:14:09 CET [RSVNAS01: cifs.shares.activated:info]: Activated 2 CIFS shares on the volume vol_cifs.

exportfs [Line 2]: Export of local volume /vol/vol_cifs requires nfs license

Volume 'vol_cifs' is now online.

RSVNAS01> aggr show_space -g

Aggregate 'aggr0'

Total space WAFL reserve Snap reserve Usable space BSR NVLOG

4138GB 413GB 186GB 3538GB 0GB

Space allocated to volumes in the aggregate

Volume Allocated Used Guarantee

vol0 20GB 0GB volume

vol_cifs 204GB 204GB volume(disabled)

Aggregate Allocated Used Avail

Total space 224GB 204GB 3313GB

Snap reserve 186GB 0GB 185GB

WAFL reserve 413GB 0GB 413GB

RSVNAS01> df -g

Filesystem total used avail capacity Mounted on

/vol/vol0/ 16GB 0GB 15GB 2% /vol/vol0/

/vol/vol0/.snapshot 4GB 0GB 3GB 1% /vol/vol0/.snapshot

/vol/vol_cifs/ 2814GB 203GB 2610GB 7% /vol/vol_cifs/

/vol/vol_cifs/.snapshot 703GB 0GB 703GB 0% /vol/vol_cifs/.snapshot

RSVNAS01> snap reserve -V

Volume vol0: current snapshot reserve is 20% or 4194304 k-bytes.

Volume vol_cifs: current snapshot reserve is 20% or 737778072 k-bytes.

Thank you very much for your support