49 lines
1.3 KiB
Groff
49 lines
1.3 KiB
Groff
.TH THIN_DELTA 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
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.SH NAME
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thin_delta \- Print the differences in the mappings between two thin devices.
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.SH SYNOPSIS
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.B thin_delta
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.RB [ options ]
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.I {device|file}
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.SH DESCRIPTION
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.B thin_delta
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allows you to compare the mappings in two thin volumes (snapshots allow common blocks between thin volumes).
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This tool cannot be run on live metadata unless the \fB\-\-metadata\-snap\fP option is used.
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.SH OPTIONS
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.IP "\fB\-\-thin1, \-\-snap1\fP"
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The numeric identifier for the first thin volume to diff.
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.IP "\fB\-\-thin2, \-\-snap2\fP"
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The numeric identifier for the second thin volume to diff.
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.IP "\fB\-m, \-\-metadata\-snap\fP [block#]"
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If you want to get information out of a live pool then you will need
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to take a metadata snapshot and use this switch. In order for the
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information to be meaningful you need to ensure the thin volumes
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you're examining are not changing (eg, do not activate those thins).
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.IP "\fB\-\-verbose"
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Provide extra information on the mappings.
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.IP "\fB\-h, \-\-help\fP"
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Print help and exit.
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.IP "\fB\-V, \-\-version\fP"
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Output version information and exit.
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.SH SEE ALSO
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.B thin_dump(8)
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.B thin_repair(8)
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.B thin_restore(8)
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.B thin_rmap(8)
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.B thin_trim(8)
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.B thin_metadata_size(8)
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.SH AUTHOR
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Joe Thornber <ejt@redhat.com>
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