Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block device

Backup agent for Linux servers and workstations on-premises or in the public cloud

Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block device

Veeam Logoby yiw » Thu Nov 10, 2016 11:17 pm

Hi Everyone,

I have CentOS vm running on top of KVM/QEMU, it has 3 virtual disks which provide by Ceph block device. Is it suitable for Veeam Linux Agent to back up all 3 disks and restore all together from bare metal?

Here is lsblk, vda/vdb/vdc are all Ceph block device:

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 16G 0 disk
├─vda1 252:1 0 500M 0 part /boot
└─vda2 252:2 0 15.5G 0 part
├─centos-swap 253:0 0 1.6G 0 lvm [SWAP]
└─centos-root 253:1 0 13.9G 0 lvm /
vdb 252:16 0 460G 0 disk
└─DataPool-DataPool 253:3 0 460G 0 lvm /usr/local/lib/DataPool
vdc 252:32 0 550G 0 disk
└─DBArchivePool-DBArchivePool 253:2 0 550G 0 lvm /usr/local/lib/db_archive

I will try to deploy this weekend.

Thank you!
yiw
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Re: Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block de

Veeam Logoby vmniels » Fri Nov 11, 2016 9:08 am

Multiple tests have been done with KVM/Qemu without an issue. I haven't tried it via Ceph block device but I presume it will work (keep in mind this is a beta). Please let us know your feedback! Looking forward to it.
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Re: Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block de

Veeam Logoby PTide » Fri Nov 11, 2016 2:57 pm

Hi,

What format of virtual disk do you use, is it qcow2 or some other format? Do you map RBD as a block device or just access an image as a virtual block device directly via librbd? Also since ceph block devices are thin provisioned I expect that during restores VAL might attempt to restore the whole provisioned amount of space so it is a subject to test.

Thanks
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Re: Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block de

Veeam Logoby yiw » Sun Nov 13, 2016 6:13 am

Hi Pavel,

Virtual disk format is RAW. The VM is not aware of RBD, the hypervisor (KVM/Qemu) access the image via librbd.

I performed entire machine backup to NFS (an ubuntu server) and recovery file from it (Veeam mount it to /tmp/backup) without any issue.

Then I shutdown old VM, start a new one and boot from Veeam recovery iso to test baremetal recovery but got error:
Image

I tried to follow the instruction to mount NFS manually but no luck.
Image

any idea please?

Thank you!

Yi
yiw
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Re: Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block de

Veeam Logoby PTide » Sun Nov 13, 2016 3:19 pm

Hi,

That's a known bug with NFSv3 in Recovery Media, it will be fixed in GA. Please either switch to v4 on the server side or move the backup to some other storage.
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Re: Veeam Agent apply on CentOSvm + KVM/QEMU + Ceph block de

Veeam Logoby yiw » Tue Nov 15, 2016 11:33 am 1 person likes this post

PTide wrote:Hi,

What format of virtual disk do you use, is it qcow2 or some other format? Do you map RBD as a block device or just access an image as a virtual block device directly via librbd? Also since ceph block devices are thin provisioned I expect that during restores VAL might attempt to restore the whole provisioned amount of space so it is a subject to test.

Thanks


Hi

I switched to a Synology box and performed bare metal restore successfully.

You're right, VAL restore the whole provisioned amount of space.

Thank you!

Yi
yiw
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