12:08 a.m.
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
5:01 a.m.
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-fb16-452d-8521-4ff0b004aef3
@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@iontrading.com]
*Sent:* Thursday, May 07, 2015 6:08 PM
*To:* 'users(a)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
5:02 a.m.
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_unregistere...)
Regards,
Maor
----- Original Message -----
6:30 p.m.
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
AG
-----Original Message-----
From: Maor Lipchuk [mailto:mlipchuk@redhat.com]
Sent: Wednesday, May 13, 2015 11:02 PM
To: Andrea Ghelardi
Cc: users(a)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_unregistere...)
Regards,
Maor
----- Original Message -----
9:54 p.m.
After querying the hosted engine with the suggested command
https://pisa-ion-ovirtm-01/ovirt-engine/api/storagedomains/7a48fe46-2112-...
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@iontrading.com]
Sent: Friday, May 15, 2015 12:30 PM
To: Maor Lipchuk
Cc: users(a)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
AG
-----Original Message-----
From: Maor Lipchuk [mailto:mlipchuk@redhat.com]
Sent: Wednesday, May 13, 2015 11:02 PM
To: Andrea Ghelardi
Cc: users(a)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_unregistere...)
Regards,
Maor
----- Original Message -----
4:03 p.m.
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 -----
lol :)
Nice cats
5:10 p.m.
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@redhat.com]
Sent: Saturday, May 16, 2015 10:03 AM
To: Andrea Ghelardi
Cc: users(a)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 -----
lol :)
Nice cats
7:14 p.m.
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 -----
9:30 p.m.
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@redhat.com]
Sent: Monday, May 18, 2015 1:15 PM
To: Andrea Ghelardi
Cc: users(a)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 -----
3615
days inactive
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days old
8 comments
2 participants
participants (2)
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