cache\_repair(8) System Manager's Manual cache\_repair(8)

# [NAME](#NAME)

**cache\_repair** - repair cache binary metadata from device/file to device/file.

# [SYNOPSIS](#SYNOPSIS)

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

# [DESCRIPTION](#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](#OPTIONS)

[**-h, --help**](#h)

Print help and exit.

[**-V, --version**](#V)

Print version information and exit.

[**-i, --input {device|file}**](#i)

Input file or device containing binary metadata.

[**-o, --output {device|file}**](#o)

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](#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](#DIAGNOSTICS)

**cache\_repair** returns an exit code of 0 for success or 1 for error.

# [SEE ALSO](#SEE_ALSO)

[**cache\_dump**(8)](/man/enterprise-packages/thin-provisioning-tools/cache_dump.8), [**cache\_check**(8)](/man/enterprise-packages/thin-provisioning-tools/cache_check.8), [**cache\_restore**(8)](/man/enterprise-packages/thin-provisioning-tools/cache_restore.8)

# [AUTHOR](#AUTHOR)

Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>

Device Mapper Tools System Manager's Manual

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Document: cache_repair(8) from thin-provisioning-tools 1.3.4-r5 (Chainguard OS)