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vmware disk consolidation

foudn one of my vms had loads of file and so ran a consolidation of disks.

getting:

This virtual machine has more than 100 redo logs in a single branch of its snapshot tree. Deleting some of the snapshots or consolidating the redo logs will improve performance. The maximum number of redo logs supported is 255.
This virtual machine has more than 100 redo logs in a single branch of its snapshot tree. Deleting some of the snapshots or consolidating the redo logs will improve performance. The maximum number of redo logs supported is 255.
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CHI-LTD
Asked:
CHI-LTD
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5 Solutions
 
gheistCommented:
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CHI-LTDAuthor Commented:
i tried that last night and got the error.  files remain..
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gheistCommented:
Try in desktop client - snapshot manager/delete all, it is much older and more solid button than "consolidate"
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CHI-LTDAuthor Commented:
i think i would have done, but there aren't any option to do this.  not snapshots in here.  but the client shows consolidation needs to be run..
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CHI-LTDAuthor Commented:
okay, thought so.
i can see the files listed in the gui, but not showing in ssh...
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
This is often the case with Consolidation.

Try the following:-

1. Create a new Snapshot
2. Wait 60 seconds
3. Delete ALL (the snapshots).

Check using SSH or Datastore Browser, do snapshots still exist?

see my EE Article

HOW TO: VMware Snapshots :- Be Patient
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gheistCommented:
Yes, delete tmp files when guest is off and consolidated and snapshots removed. You can use datastore browser too to delete them
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CHI-LTDAuthor Commented:
so power the vm off first.
then snapshot through Vmware (not 3rd party tool)
then delete it (which will delete the old ones too?)

thanks
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
That's correct, it does not matter, whether the VM is on or off.

Yes, DELETE ALL, will remove the entire chain of snapshots.

try it.

Please report back if successful.
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CHI-LTDAuthor Commented:
but i currently don't see any under the snapshot manage in the gui with the vm on..
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
That's normal, that snapshots could be missing from Snapshot Manager.

Can you check if your VM is running on a Snapshot, see my Article above to check.
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CHI-LTDAuthor Commented:
looks like the vm is running on the shanshot./
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CHI-LTDAuthor Commented:
some of my other vms have some odd vmdk names, but must be running on the correct disk and not snapshot as only one there...
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gheistCommented:
You have to power it off for service. While it is running it may continue to add journals.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if you have a VM disk called -0000x.vmdk (where x is a number)

it's running on a snapshot.
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gheistCommented:
100 journals is inconsistency that has to be fixed. Making and deleting snapshot on powered off VM is the easiest try.
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CHI-LTDAuthor Commented:
ok will try that first.
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gheistCommented:
If visual solution fails delete journals while machine is still off (or safer -  rename tmp directory to qwerty)
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CHI-LTDAuthor Commented:
can you explain?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If consolidation is not working, or Deleting snapshots is not working.

you will need to

1. CLONE the existing Virtual Machine disk.

or

2. Use VMware Converter to create a V2V.
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CHI-LTDAuthor Commented:
So:

so power the vm off first.
consolidate

if not worked:
then snapshot through Vmware (not 3rd party tool)
then delete it (which will delete the old ones too?)

if that fails:
clone it
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
That's a good Action Plan.
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CHI-LTDAuthor Commented:
forgot to add that we had a power cut and our vms shutdown and restarted..
i have 2x vms on 2x different hosts removing snapshot since 11am and 8am today
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CHI-LTDAuthor Commented:
saying unable to access file since it is locked.

going to snapshot it then delete & consolidate.
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CHI-LTDAuthor Commented:
didnt work either.  downed my acronis appliance which has the vm disk attached/locked.

its consolidating now..
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gheistCommented:
Cmon you doid not see it before that your acronisappliance is locking snapshots?
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CHI-LTDAuthor Commented:
nope!
really thinking if replicating the vms is worthwhile with the issues we have with it!!?

1x vm colsolidating
2x vms removing snapshot - still...
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gheistCommented:
1x move machine to different storage in different format.
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CHI-LTDAuthor Commented:
??
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You need to investigate WHY, these Snapshots are being left.
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CHI-LTDAuthor Commented:
sure.  its happened before and we think its a conflict with other backup software and/or the replicas taking too long and clashing somehow and not removing the old files.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I've seen you post many issues with your Backup Solutions.

Its not really recommended to run two different backup solutions that use VMware Snapshots.

SLOW storage or datastores are also causes of leftover snapshots.
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