[Users] VM has paused due to unknown storage error

[David Wilson]

Thanks for your reply Yeela. I appreciate your feedback.

Please see my feedback to the list earlier..... weird that I was able to 
repair the disk using another physical system.Butwhen attached to the 
guestoVirt kept pausing the guest which prevented fsck from completing.





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Kind regards,

David Wilson
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On 12/03/2012 10:36 AM, Yeela Kaplan wrote:
> It seems that your guest file system is corrupted.
> The dd approach won't help cause this is a virtual disk,
> you need to fix the virtual disk inside the lv, that's why any operations on the lv won't help.
> You can try shutting down the vm (not paused, but literally down) and add the guest vm disk as
> a second disk to another vm.
> In the second vm try to run fsck on the disk and see if it helps.
> In any case before trying to manipulate the disk image please save a backup!!!
> let me know how it goes...
>
> ----- Original Message -----
>> From: "David Wilson" <dave at dcdata.co.za>
>> To: users at ovirt.org
>> Sent: Sunday, December 2, 2012 11:17:43 AM
>> Subject: [Users] VM has paused due to unknown storage error
>>
>>
>> H i everyone,
>>
>> Sunday fun : )
>>
>> One of our cr itical Linux VMs ran out of disk space. I cleared up
>> space by removing old application logs within the guest, rebooted
>> the g uest and was presented with the following information message
>> during bootup when the filesystem ext3/ 4 scan runs:
>> Clearing orhpaned inode .....
>> Shortly after this message the the guest is p aused by oVirt and the
>> "VM has paused due to unknown storage error" message is displayed in
>> the oVirt web GUI.
>>
>> On the physical node itself, I fo und t he following error in
>> /var/log/vdsm/vd sm.log:
>> libvirtEventLoop:: INFO::2012-12-02
>> 09:05:50,296::libvirtvm::1965::vm.Vm::(_onAbnormalStop)
>> vmId=`23b9212c-1e25-4003-aa18-b1e819bf6bb1`::abnormal vm stop device
>> ide0-0-1 error eother
>>
>> Any ideas on how to get more inf ormation on what exactly the error
>> is?
>>
>> I've tried booting the guest into r es cue mode , run a manual fsck
>> on the logical v olume but each time the guest is automaticall
>> paused due to the "unknown storage error".
>>
>> We are using a FC SAN for s torage , s o what I've decided to try is
>> expo rt the disk using "dd" on the physical node and t hen try
>> repairing it by mounting it as a loop filesystem on a nother
>> physical ser ver , and then use "dd" to import it back in again.
>>
>> Is this the right approach to take to get the system back online?
>>
>>
>>
>>
>> --
>>
>>
>> Get important Linux and industry-related news at: facebook.com/dcdata
>>
>> Kind regards,
>>
>> David Wilson
>> CNS,CLS, LINUX+, CLA, DCTS, LPIC3
>> LinuxTech CC t/a DcData
>> CK number: 2001/058368/23
>>
>> 	Website: 	http://www.dcdata.co.za
>> 	Support: 	+27(0)860-1-LINUX
>> 	Mobile: 	+27(0)824147413
>> 	Tel: 	+27(0)333446100
>> 	Fax: 	+27(0)866878971
>>
>>
>>
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