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

6       cache_check - repair cache metadata on device or file
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SYNOPSIS

10       cache_check [options] {device|file}
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DESCRIPTION

14       cache_check  checks  cache  metadata created by the device-mapper cache
15       target on a device or file.
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17       This tool cannot be run on live metadata.
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OPTIONS

21       -q, --quiet
22              Suppress output messages, return only exit code.
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25       -h, --help
26              Print help and exit.
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29       -V, --version
30              Output version information and exit.
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33       --super-block-only
34              Only check the superblock is present.
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37       --skip-mappings
38              Skip checking of the block mappings which make up  the  bulk  of
39              the metadata.
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42       --skip-hints
43              Skip checking of the policy hint values metadata.
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46       --skip-discards
47              Skip checking of the discard bits in the metadata.
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EXAMPLE

51       Analyses and repairs cache metadata on logical volume /dev/vg/metadata:
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55       The device may not be actively used by the target when running.
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DIAGNOSTICS

59       cache_check returns an exit code of 0 for success or 1 for error.
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SEE ALSO

63       cache_dump(8) cache_repair(8) cache_restore(8)
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AUTHOR

67       Joe Thornber <ejt@redhat.com>
68       Heinz Mauelshagen <HeinzM@RedHat.com>
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72Red Hat, Inc.               Thin Provisioning Tools             CACHE_CHECK(8)
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