We're having a problem with one of our NetApp volumes: it's no longer creating any snapshots. It usedto work.
SnapMirror for the volume is working properly.
Our Senior Storage Admin left us a few weeks ago, and my manager and I are absolute novices where DataOnTap is concerned. We haven't found IBM to be that helpful, so far, so we figured we'd give this forum a try.
This is the description of the problem my manager gave to IBM:
Problem: PROCUREMENT Volume will not take daily/weekly snapshots, message saying "snapshot auto-delete or volume autosize still in progress"
attempted solution: The fs_size_fixed setting is currently set to "on" for this volume. It is part of a snapmirror relationship, and the snapmirror appears to be working. None of our other Snapmirror volumes have the fs_size_fixed setting set to "on", so I tried changing the fs_size_fixed setting to “off” for the PROCURMENT volume to try and get the snapshots working. So I enabled the setting, and had some weird behavior:
----------------------This is what the messages looked like before making the change.:----------------------------
NAS01> Wed Aug 3 17:28:46 EST [NAS01:wafl.snap.create.skip.reason:notice] : PROCUREMENT: skipping creation of hourly snapshot (snapshot auto-delete or vol ume autosize still in progress)
NAS01> Wed Aug 3 17:30:32 EST [NAS01:wafl.vol.autoSize.fail:info]: Unable to grow volume 'PROCUREMENT' to recover space: Volume has the fixed filesystem size option set.
----------- I then turned fs_fixed_size off. The volume started adding 10GB every 1 minute. ------------
Wed Aug 3 17:35:47 EST [NAS01:wafl.vol.autoSize.done:info]: Automatic increase size of volume 'PROCUREMENT' by 10485760 kbytes done.
Wed Aug 3 17:36:47 EST [NAS01:wafl.vol.autoSize.done:info]: Automatic increase size of volume 'PROCUREMENT' by 10485760 kbytes done.
Wed Aug 3 17:37:47 EST [NAS01:wafl.vol.autoSize.done:info]: Automatic increase size of volume 'PROCUREMENT' by 10485760 kbytes done. vol staus -b
Wed Aug 3 17:38:17 EST [CRPNAS01:wafl.vol.autoSize.done:info]: Automatic increase size of volume 'PROCUREMENT' by 10485760 kbytes done.
----- i then had to go increase the DR Procurement volume on DRNAS01 by the same size manually, because the replication started failing. -----------
---i then turned fs_fixed_size for NAS01 PROCUREMENT back to on-----------
So I fail to understand what is going on here, this behavior is the opposite of what I expected.
The PROCUREMENT volume is the only one having this problem.
Neither my manager nor I knowexactly how / why the snapshot_autodelete and vol_autogrow options should be set; this was handled by our now-departed Storage Admin. Can you explain what they do and how they work, ie, how you think they oughtto be set?
Shawn, can you post this sample on your message board post? The responses you’ve gotten indicate that we should turn snap_autodelete off , but from what I am seeing, it is already off. Maybe with this , the helpful posters can see what settings we need to change on the Procurement volume.