NAME
vxr5check — verify RAID-5 volume parity
SYNOPSIS
/etc/vx/bin/vxr5check
[-i | v ]
[-g diskgroup]
volume
DESCRIPTION
The
vxr5check
utility compares the parity of each stripe of a
RAID-5 volume specified by
volume.
vxr5check
reads the data for each stripe,
generates the parity for this stripe,
and compares this parity with the existing parity.
vxr5check
can be run against the entire RAID-5 volume,
or incrementally on RAID-5 stripe boundaries,
by specifying the
-i
option.
OPTIONS
- -g diskgroup
Specifies the Volume Manager disk group name for the RAID-5
volume name for verification.
If a disk group name is not specified,
the
rootdg
disk group is assumed as the default.
- -i
Verifies the RAID-5 volume incrementally per stripes.
If a parity mismatch is found,
that stripe location is displayed.
- -v
Verbose output for the incremental
vxr5check
verification.
The verbose option outputs each stripe number that is being verified.
OUTPUT FORMAT
In verbose mode and incremental mode,
summary reports for each stripe of
the RAID-5 volume are printed in output records.
If an error is returned for a stripe,
then an error message and stripe number are displayed.
In non-verbose mode,
if an error is returned,
an error message is displayed.
If a parity mismatch error is determined on a stripe,
vxr5check
exits on that stripe and does not continue for
the remaining stripes in the RAID-5 volume.
FILES
- /usr/lib/vxvm/bin/vxr5vrfy
The utility that
vxr5check
calls to perform RAID-5 parity verification
operations for the specified RAID-5 volume.
EXIT CODES
The
vxr5check
utility exits with a non-zero status if the attempted operation fails.
A non-zero exit code is not a complete indicator of
the problems encountered,
but rather denotes the first condition that
prevented further execution of the utility.
See
vxintro(1M)
for a list of standard exit codes.
Printable version
