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.TH cache_repair 8 "Device Mapper Tools" "System Manager's Manual"
.SH NAME
\fBcache_repair \fP- repair cache binary metadata from device/file to device/file.
\fB
.SH SYNOPSIS
.nf
.fam C
\fBcache_repair\fP [\fIoptions\fP] \fB-i\fP {device|file} \fB-o\fP {device|file}

.fam T
.fi
.fam T
.fi
.SH DESCRIPTION
\fBcache_repair\fP 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.
.PP
This tool cannot be run on live metadata.
.SH OPTIONS
.TP
.B
\fB-h\fP, \fB--help\fP
Print help and exit.
.TP
.B
\fB-V\fP, \fB--version\fP
Print version information and exit.
.TP
.B
\fB-i\fP, \fB--input\fP {device|file}
Input file or device containing binary metadata.
.TP
.B
\fB-o\fP, \fB--output\fP {device|file}
Output file or device for repaired binary metadata.
.PP
.nf
.fam C
    If a file is then it must be preallocated, and large enough to hold the
    metadata.

.fam T
.fi
.SH 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:
.PP
.nf
.fam C
    $ cache_repair -i metadata -o /dev/vg/metadata

.fam T
.fi
.SH DIAGNOSTICS
\fBcache_repair\fP returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
\fBcache_dump\fP(8), \fBcache_check\fP(8), \fBcache_restore\fP(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>