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

6       vdodumpmetadata - dump the metadata regions from a VDO device
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SYNOPSIS

9       vdodumpmetadata [--no-block-map] [--lbn=lbn] vdoBacking outputFile
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DESCRIPTION

12       vdodumpmetadata  dumps  the metadata regions of a VDO device to another
13       file, to enable save and transfer of metadata from a VDO without trans‐
14       fer of the entire backing store.
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16       vdodumpmetadata  will produce a large output file. The expected size is
17       roughly equal to VDO's metadata size. A rough estimate of  the  storage
18       needed is 1.4 GB per TB of logical space.
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OPTIONS

21       --no-block-map
22              Omit  the  block  map. The output file will be of size no higher
23              than 130MB + (9 MB per slab).
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25       --lbn  Saves the block map page associated with the  specified  LBN  in
26              the  output  file. This option may be specified up to 255 times.
27              Implies --no-block-map.
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SEE ALSO

30       vdo(8).
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34Red Hat                           2017-09-12                VDODUMPMETADATA(8)