HP 3PAR OS 3.1.3 Command Line Interface Reference

showvvmap
DESCRIPTION
The showvvmap command displays information about how virtual volume regions are mapped to
logical disks. It also can display bitmap representation of the allocation of a volume or differences
between volumes, which is useful in visualizing the utilization of thinly provisioned volumes.
SYNTAX
showvvmap <VV_name>
showvvmap -allocmap [options] <VV_name>
showvvmap -unsharedmap -p <parent_VV> [options] <VV_name>
AUTHORITY
Any role in the system.
OPTIONS
-allocmap
Shows allocated bitmap of the volume specified. The volume must be thinly provisioned.
-unsharedmap
Shows a bitmap representing the unshared data between a volume and its parent, specified with
-p. The volumes must be thinly provisioned.
-p <parent_VV>
Specifies a parent volume by name used in unsharedmap mode to compare with <VV_name>.
-start <start_offset>
Specifies the starting offset for comparison or bitmap generation. This defaults to 0. Can only be
used with -allocmap or -unsharedmap operations. It is in the unit of bytes, followed by an optional
suffix of K, M, or G
-len <search_length>
Specifies the length to scan from the starting offset. If not specified, the length will default to the
whole volume. Can only be used with -allocmap or -unsharedmap operations. The units are in
bytes, followed by an optional suffix of K, M, or G.
-bsize <block_size>
Specifies the block size that is represented by each bit in the bitmap. If not specified, the default
is 1MB. Can only be used with -allocmap or -unsharedmap operations. The units are in bytes,
followed by an optional suffix of K, M, or G.
-oneline
Shows the bitmap information in one line and not subjected to the 80 character limit.
SPECIFIERS
<VV_name>
The virtual volume name.
EXAMPLES
The following example shows the VV to LD mapping of a volume:
cli% showvvmap vv0
512 Show Commands