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.

SEE ALSO

     fstab(5), fsck(8), zpool-scrub(8)