Garbage Collection task warning unable to access non-existent chunk

[gun.k]

i have issue with TASK WARNINGS on my PBS Garbage Collection (GC) tasks resulting

warning: unable to access non-existent chunk [CHUNK_HASH_ID] required by [path_to_index_file.fidx]

Is there a recommend way to fix the Problem ?

 

[fabian]

that means you storage is either broken, or you had corrupt chunks at some point that got removed by verification..

 

[gun.k]

that means you storage is either broken, or you had corrupt chunks at some point that got removed by verification..

I have verified the backup job and got the following results in the file. What should I do next?

 

[fabian]

so chunks are missing - you should find out why (and probably delete the affected snapshots). are you using a NAS as backend for your datastore? did either the NAS or the PBS system ever crash or otherwise go down hard?