1thin_delta(8) System Manager's Manual thin_delta(8)
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6 thin_delta - Print the differences in the mappings between two thin de‐
7 vices.
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10 thin_delta [options] {device|file}
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14 thin_delta allows you to compare the mappings in two thin volumes
15 (snapshots allow common blocks between thin volumes).
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17 This tool cannot be run on live metadata unless the --metadata-snap op‐
18 tion is used.
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21 --thin1, --snap1 {natural}
22 The numeric identifier for the first thin volume to diff.
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24 --thin2, --snap2 {natural}
25 The numeric identifier for the second thin volume to diff.
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27 --metadata-snap [block nr]
28 Use a metadata snapshot.
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30 If you want to get information out of a live pool then you will need to
31 take a metadata snapshot and use this switch. In order for the information
32 to be meaningful, you need to ensure the thin volumes you're examining are
33 not changing (ie, do not activate those thins).
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36 --verbose
37 Provide extra information on the mappings.
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39 -h, --help
40 Print help and exit.
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42 -V, --version
43 Output version information and exit.
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46 thin_dump(8), thin_repair(8), thin_restore(8), thin_rmap(8), thin_meta‐
47 data_size(8)
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50 Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <heinzm@redhat.com>
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54System Manager's Manual Device Mapper Tools thin_delta(8)