Your RAID is too slow to respond on writability checks.
Please try to increase a writable check timeout on 30s
If the RAID could not pass a writable check even after 1m30s timeout, you may increase more and restart. Repeat until it wouldn’t crash with the writability check error.
If you would be forced to increase it more than 5m0s, your RAID definitely has issues and need investigation. To continue to increase a writability check timeout you will also need to increase the writability check interval (because it’s 5 minutes by default), i.e.
# how frequently to verify writability of storage directory (default 5m0s)
storage2.monitor.verify-dir-writable-interval: 5m30s
# how long to wait for a storage directory writability verification to complete (default 1m0s)
storage2.monitor.verify-dir-writable-timeout: 5m30s