Solaris fssnap and realtime processes

Wednesday, 12. 21. 2005  –  Category: all, vague

fsnap(1M) is most woo-esque for backing up filesystems, in a

snapshot filesystem
dump filesystem to tape
release snapshot
check dump

kind of manner.

It does, however, have problems with realtime priority processes. If the executable of such a process resides on the filesystem being snapshotted, things don’t work:
snapshot error: File system could not be write locked

Quick solution: [...]