fsck.zfs

FSCK.ZFS(8) System Manager's Manual FSCK.ZFS(8)

NAME

   fsck.zfs — dummy ZFS filesystem checker

SYNOPSIS

   fsck.zfs [options] dataset…

DESCRIPTION

   fsck.zfs  is  a  thin shell wrapper that at most checks the status of a dataset's container pool.  It is installed by OpenZFS because some Linux distributions expect a fsck helper for
   all filesystems.

   If more than one dataset is specified, each is checked in turn and the results binary-ored.

OPTIONS

   Ignored.

NOTES

   ZFS datasets are checked by running zpool scrub on the containing pool.  An individual ZFS dataset is never checked independently of its pool, which is unlike a regular filesystem.

   However, the fsck(8) interface still allows it to communicate some errors: if the dataset is in a degraded pool, then fsck.zfs will return exit  code  4  to  indicate  an  uncorrected
   filesystem error.

   Similarly, if the dataset is in a faulted pool and has a legacy /etc/fstab record, then fsck.zfs will return exit code 8 to indicate a fatal operational error.