Man page - vdodumpmetadata(8)

Packages contains this manual

Package:  vdo
apt-get install vdo

Manuals in package:
• vdodumpblockmap(8)
• adaptlvm(8)
• vdostats(8)
• vdorecover(8)
• vdolistmetadata(8)
• vdoreadonly(8)
• vdoforcerebuild(8)
• vdodumpmetadata(8)
• vdoformat(8)
• vdodebugmetadata(8)
• vdoaudit(8)
Documentations in package:
• vdo

Manual

VDODUMPMETADATA

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
SEE ALSO

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NAME

vdodumpmetadata - dump the metadata regions from a VDO device

SYNOPSIS

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

DESCRIPTION

vdodumpmetadata dumps the metadata regions of a VDO device to another file, to enable save and transfer of metadata from a VDO without transfer of the entire backing store.

vdoBacking must be the path of the VDODataLV as described in lvmvdo (7).

vdodumpmetadata will produce a large output file. The expected size is roughly equal to VDO’s metadata size. A rough estimate of the storage needed is 1.4 GB per TB of logical space.

OPTIONS

--no-block-map

Omit the block map. The output file will be of size no higher than 130MB + (9 MB per slab).

--lbn

Saves the block map page associated with the specified LBN in the output file. This option may be specified up to 255 times. Implies --no-block-map.

EXAMPLE

# lvchange -ay vdo1/vdo0pool_vdata
# vdodumpmetadata /dev/mapper/vdo1-vdo0pool_vdata vdo1-meta-dump
# lvchange -an vdo1/vdo0pool_vdata

SEE ALSO

lvmvdo (7), lvchange (8), vdodebugmetadata (8)

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