[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-06 Thread Strahil Nikolov via Users
Hi David, I hope you manage to recover the VM or most of the data. If you got multiple disks in that VM (easily observeable in oVirt UI), you might need to repeat that again for the rest of the disks. Check with xfs_info the inode size (isize), as the default used to be 256, but I have noticed

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-06 Thread David White via Users
Thank you for all the responses. Following Strahil's instructions, I *think* that I was able to reconstruct the disk image. I'm just waiting for that image to finish downloading onto my local machine, at which point I'll try to import into VirtualBox or something. Fingers crossed! Worst case

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-05 Thread Thomas Hoberg
If you manage to export the disk image via the GUI, the result should be a qcow2 format file, which you can mount/attach to anything Linux (well, if the VM was Linux... it didn't say) But it's perhaps easier to simply try to attach the disk of the failed VM as a secondary to a live VM to

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-05 Thread Thomas Hoberg
First off, I have very little hope, you'll be able to recover your data working at gluster level... And then there is a lot of information missing between the lines: I guess you are using a 3 node HCI setup and were adding new disks (/dev/sdb) on all three nodes and trying to move the

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-04 Thread Strahil Nikolov via Users
*should be 2 On Thu, Aug 5, 2021 at 7:42, Strahil Nikolov wrote: when you use 'remove-brick replica 1', you need to specify the removed bricks which should be 1 (data brick and arbiter).Something is mising in your description. Best Regards,Strahil Nikolov On Thu, Aug 5, 2021 at

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-04 Thread Strahil Nikolov via Users
when you use 'remove-brick replica 1', you need to specify the removed bricks which should be 1 (data brick and arbiter).Something is mising in your description. Best Regards,Strahil Nikolov On Thu, Aug 5, 2021 at 7:33, Strahil Nikolov via Users wrote:

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-04 Thread Strahil Nikolov via Users
First of all you diddn't 'mkfs.xfs -i size=512' . You just 'mkfs.xfs' , whis is not good and could have caused your VM problems. Also , check with xfs_info the isize of the FS. You have to find the uuid of the disks of the affected VM.Then go to the removed host,and find that file -> this is

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-03 Thread David White via Users
Hi Patrick, This would be amazing, if possible. Checking /gluster_bricks/data/data on the host where I've removed (but not replaced) the bricks, I see a single directory. When I go into that directory, I see two directories: dom_md images If I go into the images directory, I think I see the

[ovirt-users] Re: Data recovery from (now unused, but still mounted) Gluster Volume for a single VM

2021-08-02 Thread Patrick Lomakin
Greetings, I once wondered how data is stored between replicated bricks. Specifically, how disks are stored on the storage domain in Gluster. I checked a mounted brick via the standard path (path may be different) /gluster/data/data and saw many directories there. Maybe the hierarchy is