Question about FSHammer getting full

Matthew Dillon dillon at
Thu Aug 27 11:32:21 PDT 2009

:Im wondering, if I delete a couple of snapshots and prune everything in the
:machine A, after mirror copy to the second one, it will be pruned and
:reblocked just by the mirror copy?

    No, data already mirrored is not pruned after the fact by the
    mirroring program.  You have to prune the mirror target independently.
    This allows mirror targets to use a different pruning regimen if
    they desire.

    Since <fs>/snapshots/ is mirrored the snapshots directory for the
    PFS slave must be configured (via hammer pfs-update) to somewhere
    that is not in the slave if you want it to use a different pruning


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