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Longhorn backup with Kasten

Geoff Burke
Userlevel 7
Badge +22

Hi Everyone,

 

I wanted to re-visit this. Does Kasten backup Longhorn without any issues now? I tried a while back and Longhorn there were problems even though I thought way back when I had been able to do this. I saw some other folks had issues as well.  I am going to try again on the weekend but just wanted to see if any instructions or “solved” cases were out there before I do.

Thanks 

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Best answer by jaiganeshjk 13 June 2023, 06:55

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VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS

7 comments

jaiganeshjk
Userlevel 6
Badge +2

Hi @Geoff Burke ,

I haven’t faced issues directly with K10 when used along with longhorn recently. You could take a look at this KB article https://kb.kasten.io/knowledge/debugging-backups-with-longhorn-csi

 

There was one small problem with the snapshot cleanup(It was not an issue with K10. Its just how longhorn snapshot garbage collection works) that I faced when I was working along with @Lei Wei .

I have drafted a KB article for that issue with the solution. Its not published yet. I will share the article once it is public. 

Jaiganesh
Geoff Burke
Userlevel 7
Badge +22

Thanks jaigneshjk! I will give it a try later today. 

 

cheers

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS
Geoff Burke
Userlevel 7
Badge +22

@jaiganeshjk All good. The only thing that I had to do was create the volumesnapshot class (type snap) and worked like a charm. By the way in my new super duper lab 🤣  I am using both Longhorn and Rook Ceph. Is there a way to have Veeam automatically choose which one to use or can you have two or do I have to keep changing the annotation?

 

 

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS
jaiganeshjk
Userlevel 6
Badge +2

Glad to hear that it worked.

 I am using both Longhorn and Rook Ceph. Is there a way to have Veeam automatically choose which one to use or can you have two or do I have to keep changing the annotation?

You can have both drivers and their corresponding volumesnapshotclass.

K10 uses the volumesnapshotclass based on the PVC and the provisioner that provisioned the PVC.

You can specify default annotation for both longhorn and rook-ceph volumesnapshotclass as they both use different provisioners, and K10 will choose the correct volumesnapshotclass based on the PVC that is protected.

Jaiganesh
Geoff Burke
Userlevel 7
Badge +22

Glad to hear that it worked.

 I am using both Longhorn and Rook Ceph. Is there a way to have Veeam automatically choose which one to use or can you have two or do I have to keep changing the annotation?

You can have both drivers and their corresponding volumesnapshotclass.

K10 uses the volumesnapshotclass based on the PVC and the provisioner that provisioned the PVC.

You can specify default annotation for both longhorn and rook-ceph volumesnapshotclass as they both use different provisioners, and K10 will choose the correct volumesnapshotclass based on the PVC that is protected.

Excellent thanks that makes perfect sense now that I think about it 😀

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS
jaiganeshjk
Userlevel 6
Badge +2

I have drafted a KB article for that issue with the solution. Its not published yet. I will share the article once it is public. 

@Geoff Burke 

Below is the link to the KB article that I promised to share earlier.
https://kb.kasten.io/knowledge/too-many-snapshots-longhorn

Jaiganesh
Geoff Burke
Userlevel 7
Badge +22

I have drafted a KB article for that issue with the solution. Its not published yet. I will share the article once it is public. 

@Geoff Burke

Below is the link to the KB article that I promised to share earlier.
https://kb.kasten.io/knowledge/too-many-snapshots-longhorn

Thanks @jaiganeshjk 

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS

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