cache_repair
Section: Maintenance Commands (8)
Updated: Device Mapper Tools
Page Index
NAME
cache_repair - repair cache binary metadata from device/file to device/file.
SYNOPSIS
cache_repair [options] -i {device|file} -o {device|file}
DESCRIPTION
cache_repair reads binary cache metadata created by the respective
device-mapper target from one device or file, repairs it and writes it to
another device or file. If written to a metadata device, the metadata can
be processed by the device-mapper target.
This tool cannot be run on live metadata.
OPTIONS
- -h, --help
-
Print help and exit.
- -V, --version
-
Print version information and exit.
- -i, --input {device|file}
-
Input file or device containing binary metadata.
- -o, --output {device|file}
-
Output file or device for repaired binary metadata.
If a file is then it must be preallocated, and large enough to hold the
metadata.
EXAMPLE
Reads the binary cache metadata from file metadata, repairs it and writes it
to logical volume /dev/vg/metadata for further processing by the respective
device-mapper target:
$ cache_repair -i metadata -o /dev/vg/metadata
DIAGNOSTICS
cache_repair returns an exit code of 0 for success or 1 for error.
SEE ALSO
cache_dump(8),
cache_check(8),
cache_restore(8)
AUTHOR
Joe Thornber <
ejt@redhat.com>, Heinz Mauelshagen <
HeinzM@RedHat.com>