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Hi, thanks for information about locking, I must check way to run verify on single snapshot/backup. Then i will write script to run this in parallel without overlap.

Yes, tapes, ACL, firewall, manual checks and other things is obvious. But if we can verify backups more frequently, why not do it:)

Test files for fio on XFS are 32x larger than server memory. When we run tests , we see this on iostat, fio tests was runned over 5 minutes and more. Multiple process can go to 80GB/s with random 1-4M reads. Single process get up to 15GB/s depends on what flags was used. Write is more than...

We have verification on all new snapshots, but we want to re-verify backups more often. The problem is that verification job is doing it one by one, can we do it in parallel by multiply jobs on the same datastore? PBS Storage bellow is on XFS/mdraid with nvme drives, with read about 80GB/s, and...