cache_repair(8)

1cache_repair(8)             System Manager's Manual            cache_repair(8)
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NAME

6       cache_repair  -  repair  cache  binary metadata from device/file to de‐
7       vice/file.
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SYNOPSIS

10       cache_repair [options] -i {device|file} -o {device|file}
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DESCRIPTION

14       cache_repair reads binary cache metadata created by the respective  de‐
15       vice-mapper target from one device or file, repairs it and writes it to
16       another device or file. If written to a metadata device,  the  metadata
17       can be processed by the device-mapper target.
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19       This tool cannot be run on live metadata.
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OPTIONS

22       -h, --help
23              Print help and exit.
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25       -V, --version
26              Print version information and exit.
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28       -i, --input {device|file}
29              Input file or device containing binary metadata.
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31       -o, --output {device|file}
32              Output file or device for repaired binary metadata.
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34           If a file is then it must be preallocated, and large enough to hold the
35           metadata.
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EXAMPLE

39       Reads  the  binary  cache  metadata  from file metadata, repairs it and
40       writes it to logical volume /dev/vg/metadata for further processing  by
41       the respective device-mapper target:
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43           $ cache_repair -i metadata -o /dev/vg/metadata
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DIAGNOSTICS

47       cache_repair returns an exit code of 0 for success or 1 for error.
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AUTHOR

53       Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>
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57System Manager's Manual       Device Mapper Tools              cache_repair(8)