[ovirt-users] missing disk after storage domain expansion

Mon May 18 13:30:26 UTC 2015

Hi Maor,

1) disk creation: ok
2) no free space at the moment of creation: this is very strange! Are you
sure? I assure you the disk was working, exported to VM which formatted and
wrote data on it
3) no disk removal mention: this is the very issue I'm facing. In fact disk
disappeared with no notification, no logs, nothing. I'm forwarding you full
set of engine.log separately. If you need vdsm.logs just tell me from which
server you need it as I have several cluster.
4) I have not yet tried to register using the procedure you provided me
earlier. I'll try tomorrow.

Thanks
AG

-----Original Message-----
From: Maor Lipchuk [mailto:mlipchuk at redhat.com]
Sent: Monday, May 18, 2015 1:15 PM
To: Andrea Ghelardi
Cc: users at ovirt.org
Subject: Re: [ovirt-users] missing disk after storage domain expansion

Hi Andrea,

I guessed I missed those logs, I found it now, thanks.

I do see the disk creation in the log from 20150501, I can also see that the
Storage Domain hertz-dstore2 has 0 GB of free space at the moment of
creation:
2015-05-01 03:30:05,801 ERROR
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(DefaultQuartzScheduler_Worker-92) Correlation ID: null, Call Stack: null,
Custom Event ID: -1, Message: Critical, Low disk space. hertz-dstore2 domain
has 0 GB of free space

though, I don't see any indication of the removed disks from the engine.
I have also noticed a gap from the first log which finished at 2015-05-01
03:30:05 and the other log which starts at 2015-05-04 03:22:19,879.

Did you try to register the disk as described in the wiki?

Regards,
Maor

----- Original Message -----
> From: "Andrea Ghelardi" <a.ghelardi at iontrading.com>
> To: "Maor Lipchuk" <mlipchuk at redhat.com>
> Cc: users at ovirt.org
> Sent: Monday, May 18, 2015 12:10:55 PM
> Subject: RE: [ovirt-users] missing disk after storage domain expansion
>
> Hi Maor,
> I already added logs in my previous email, did you received them?
> I'm sending them again, but only privately to you not to burden the
> mailing list (or let me know if you prefer otherwise).
>
> Cheers
> AG
>
>
> -----Original Message-----
> From: Maor Lipchuk [mailto:mlipchuk at redhat.com]
> Sent: Saturday, May 16, 2015 10:03 AM
> To: Andrea Ghelardi
> Cc: users at ovirt.org
> Subject: Re: [ovirt-users] missing disk after storage domain expansion
>
> Hi Andrea,
>
> The OVF_STORE disks are disks which mainly being used internally in
> the engine to store VMs' and Templates' OVFs, you can disregard them for
> now.
>
> The behavior you mentioned, that suddenly the disk has disappeared
> from the setup, sounds very weird and I would like to investigate this a
> bit more.
> if you can please add the engine and vdsm logs, I can know what made
> the disk get removed from the setup, at the first place.
> Could it be that some one accessed the data base by any chance?
>
> Regarding the disk registration, basically it should not create any
> problems unless, if your disk was deleted manually form the DB, and
> there are still leftovers related to the disk in some of the tables.
> Once the disk is registered to the setup, you can try to attach it to
> the VM, and try to run it.
>
>
> Regards,
> Maor
>
>
>
> ----- Original Message -----
> > From: "Andrea Ghelardi" <a.ghelardi at iontrading.com>
> > To: "Maor Lipchuk" <mlipchuk at redhat.com>
> > Cc: users at ovirt.org
> > Sent: Friday, May 15, 2015 4:54:25 PM
> > Subject: RE: [ovirt-users] missing disk after storage domain
> > expansion
> >
> > After querying the hosted engine with the suggested command
> > https://pisa-ion-ovirtm-01/ovirt-engine/api/storagedomains/7a48fe46-
> > 21 12-40a4-814f-24d74c760b2d/disks;unregistered
> >
> > Indeed shows  a (unregistered?) disk
> >
> > <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <disks>
> > <disk
> > href="/ovirt-engine/api/storagedomains/7a48fe46-2112-40a4-814f-24d74c760b2d/disks/16736ce0-a9df-410f-9f29-3a28364cdd41"
> > id="16736ce0-a9df-410f-9f29-3a28364cdd41">
> > <actions>
> > <link
> > href="/ovirt-engine/api/storagedomains/7a48fe46-2112-40a4-814f-24d74c760b2d/disks/16736ce0-a9df-410f-9f29-3a28364cdd41/export"
> > rel="export"/>
> > </actions>
> > <name>hertz_disk5</name>
> > <description>disk for SYBASE installation, on SAN shared
> > storage</description> <link
> > href="/ovirt-engine/api/storagedomains/7a48fe46-2112-40a4-814f-24d74c760b2d/disks/16736ce0-a9df-410f-9f29-3a28364cdd41/permissions"
> > rel="permissions"/>
> > <link
> > href="/ovirt-engine/api/storagedomains/7a48fe46-2112-40a4-814f-24d74c760b2d/disks/16736ce0-a9df-410f-9f29-3a28364cdd41/statistics"
> > rel="statistics"/>
> > <alias>hertz_disk5</alias>
> > <image_id>4ab070c0-fb16-452d-8521-4ff0b004aef3</image_id>
> > <storage_domain
> > href="/ovirt-engine/api/storagedomains/7a48fe46-2112-40a4-814f-24d74c760b2d"
> > id="7a48fe46-2112-40a4-814f-24d74c760b2d"/>
> > <storage_domains>
> > <storage_domain id="7a48fe46-2112-40a4-814f-24d74c760b2d"/>
> > </storage_domains>
> > <size>225485783040</size>
> > <provisioned_size>225485783040</provisioned_size>
> > <actual_size>225485783040</actual_size>
> > <status>
> > <state>ok</state>
> > </status>
> > <interface>ide</interface>
> > <format>raw</format>
> > <sparse>false</sparse>
> > <bootable>false</bootable>
> > <shareable>false</shareable>
> > <wipe_after_delete>false</wipe_after_delete>
> > <propagate_errors>false</propagate_errors>
> > </disk>
> > </disks>
> >
> > I'm waiting for any comments on the two OVF disk or any advice
> > before proceeding with the registering command (test in production
> > environment hmmmmm)
> >
> > Cheers
> > AG
> >
> > -----Original Message-----
> > From: Andrea Ghelardi [mailto:a.ghelardi at iontrading.com]
> > Sent: Friday, May 15, 2015 12:30 PM
> > To: Maor Lipchuk
> > Cc: users at ovirt.org
> > Subject: RE: [ovirt-users] missing disk after storage domain
> > expansion
> >
> > Thank you for your reply!
> > I'm unsure if the disk contained any snapshots. I do not think so.
> > Is the register action a safe one to do in production system? I
> > wouldn't mess any of my existing running servers.
> >
> > Here the relevant logs from the date
> > ./engine.log-20150501.gz:2015-04-29 16:10:40,868  : disk creation
> > ("hertz_disk5" newImageId = 4ab070c0-fb16-452d-8521-4ff0b004aef3)
> > ./engine.log-20150512.gz:2015-05-04 17:22:42,691  : last  occurrence
> > of the imageid
> >
> > Please note from
> > ./engine.log-20150512.gz  2015-05-11 12:07:16,719 : creation of two
> > disk OVF store (??) on the same storage domain
> > 7a48fe46-2112-40a4-814f-24d74c760b2d
> > right after the volume expansion
> >
> > In the instructions.txt  what I did to enlarge the volume (and lose
> > the
> > disk) (the guides is informational only, I followed the steps on a
> > different
> > server)
> >
> > Here some cats to thank you in advance
> > https://www.youtube.com/watch?v=nfTY41-zC7Y
>
>
> lol :)
> Nice cats
>
> > AG
> >
> >
> > -----Original Message-----
> > From: Maor Lipchuk [mailto:mlipchuk at redhat.com]
> > Sent: Wednesday, May 13, 2015 11:02 PM
> > To: Andrea Ghelardi
> > Cc: users at ovirt.org
> > Subject: Re: [ovirt-users] missing disk after storage domain
> > expansion
> >
> > Hi Andrea,
> >
> > First of all, the issue sounds quite severe, can u please attach the
> > engine logs so we can try to figure out how that happened.
> > second, does this disk contained any snapshots?
> >  If not, can you try to register it back (see
> > http://www.ovirt.org/Features/ImportStorageDomain#Register_an_unregi
> > st
> > ered_disk)
> >
> >
> > Regards,
> > Maor
> >
> >
> >
> > ----- Original Message -----
> > > From: "Andrea Ghelardi" <a.ghelardi at iontrading.com>
> > > To: users at ovirt.org
> > > Sent: Monday, May 11, 2015 12:01:17 AM
> > > Subject: Re: [ovirt-users] missing disk after storage domain
> > > expansion
> > >
> > >
> > >
> > > Ok, so,
> > >
> > > After _ a lot _ of unsuccessful approach, I finally connected to
> > > postegre DB directly.
> > >
> > > Browsing the tables I found “unregistered_ovf_of_entities” where
> > > there is a reference of the missing disk
> > >
> > >
> > >
> > >
> > >
> > > @ovf:diskId:4ab070c0-fb16-452d-8521-4ff0b004aef3
> > >
> > > @ovf:size:210
> > >
> > > @ovf:actual_size:210
> > >
> > > @ovf:vm_snapshot_id:2e24b255-bb84-4284-8785-e2a042045882
> > >
> > > @ovf:fileRef:16736ce0-a9df-410f-9f29-3a28364cdd41/4ab070c0-fb16-45
> > > 2d
> > > -8
> > > 521-4ff0b004aef3
> > >
> > > @ovf:format: http://www.vmware.com/specifications/vmdk.html#sparse
> > >
> > > @ovf:volume-format:RAW
> > >
> > > @ovf:volume-type:Preallocated
> > >
> > > @ovf:disk-interface:VirtIO
> > >
> > > @ovf:boot:false
> > >
> > > @ovf:disk-alias:hertz_disk5
> > >
> > > @ovf:disk-description:disk for SYBASE installation, on SAN shared
> > > storage
> > >
> > > @ovf:wipe-after-delete:false
> > >
> > >
> > >
> > > However, I’ve been unable to find any other helpful details.
> > >
> > > I guess the disk is not recoverable at this point?
> > >
> > > Any guru who has a good ovirt DB kwnoledge willing to give me some
> > > advice?
> > >
> > >
> > >
> > > Thanks as usual
> > >
> > > AG
> > >
> > >
> > >
> > >
> > > From: Andrea Ghelardi [mailto: a.ghelardi at iontrading.com ]
> > > Sent: Thursday, May 07, 2015 6:08 PM
> > > To: ' users at ovirt.org '
> > > Subject: missing disk after storage domain expansion
> > >
> > >
> > >
> > >
> > > Hi gentlemen,
> > >
> > >
> > >
> > > I recently found an error on 1 of my storages: it was complaining
> > > about no free space but the VM was running and disk operational.
> > >
> > > Since I needed to perform some maintenance on the VM, I shut it
> > > down and at restart VM couldn’t boot up properly.
> > >
> > > Checked VM via console and a disk was missing. Edited fstab
> > > (luckily this disk was not root but heck! It had a Sybase DB on
> > > it!) and restarted VM this time ok.
> > >
> > >
> > >
> > > Since the disk resides on the dstore with no space, I expanded the
> > > iSCSI LUN, then refreshed multipath on hosts, then resized PVs and
> > > now ovirt is showing the correct size (logs do not complain
> > > anymore on no free space).
> > >
> > >
> > >
> > > BUUUT
> > >
> > >
> > >
> > > Now disk is missing. It is not shown anymore on Disks tab nor
> > > anywhere else.
> > >
> > > Problem is that storage shows 214GB occupancy (size of the missing
> > > disk) so data is there but cannot find it anymore.
> > >
> > >
> > >
> > > Logs show original disk creation, errors from the lack of space,
> > > refresh of the storage size and then.... no more references on the
> > > disk.
> > >
> > >
> > >
> > > What can I do to find those missing ~210GBs?
> > >
> > >
> > >
> > > Cheers
> > >
> > > Andrea Ghelardi
> > >
> > >
> > >
> > > _______________________________________________
> > > Users mailing list
> > > Users at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > >
> >
>