Use the lsmdiskextent command to display
the extent allocation between managed disks and volumes. The output
lists a volume ID, volume copy ID, and the number of extents.
Syntax
lsmdiskextent [ -nohdr ] [ -delim delimiter ] { mdisk_name | mdisk_id }
Parameters
- -nohdr
- (Optional) By default, headings are displayed for each column of data in a concise style view,
and for each item of data in a detailed style view. The -nohdr parameter
suppresses the display of these headings.
Note: If there is no data to be displayed, headings are not
displayed.
- -delimdelimiter
- (Optional) By default in a concise view, all columns of data are space-separated. The width of
each column is set to the maximum width of each item of data. In a detailed view, each item of data
has its own row, and if the headers are displayed, the data is separated from the header by a space.
The -delim parameter overrides this behavior. Valid input for the
-delim parameter is a 1-byte character. If you enter -delim
: on the command line, the colon character (:) separates all items of data
in a concise view; for example, the spacing of columns does not occur. In a detailed view, the data
is separated from its header by the specified delimiter.
- mdisk_name | mdisk_id
- (Required) Specifies the specific object ID or name of the specified type.
Description
The command displays a list, in which each entry contains a volume ID, volume copy ID,
and the number of extents. These volume copies are using extents on the specified MDisk.
The number of extents that are being used on each MDisk is also shown.
Every volume copy is constructed from one or more MDisks. At times, you might have to determine
the relationship between the two objects.
To determine the relationship between volume copies and MDisks, issue the following command
for each volume copy:lsvdiskmember vdisk_name | vdisk_id
where
vdisk_name | vdisk_id is the name or ID of the
volume copy. This
displays a list of IDs that correspond to the MDisks that make up the volume copy.
To determine the relationship between volume copies and MDisks and the number of
extents that are provided by each MDisk, you must use the command-line interface. For each
volume copy, issue the following command:
lsvdiskextent vdisk_name | vdisk_id
where
vdisk_name | vdisk_id is the name or ID of the
volume copy. This
displays a table of MDisk IDs and the corresponding number of extents that each MDisk is providing
as storage for the specified
volume copy.
To determine the relationship between MDisks and
volume
copies, issue the following command for each MDisk:
lsmdiskmember mdisk_name | mdisk_id
where
mdisk_name
| mdisk_id is the name or ID of the MDisk. This displays
a list of IDs that correspond to the
volume copies that are
using this MDisk.
To determine the relationship between MDisks
and
volume copies and the number of extents that are used
by each
volume copy, you must use the command-line interface.
For each MDisk, issue the following command:
lsmdiskextent mdisk_name | mdisk_id
where
mdisk_name
| mdisk_id is the name or ID of the MDisk. This command
displays a table of
volume copy IDs and the corresponding
number of extents that are being used by each
volume copy.
An invocation example
lsmdiskextent -delim : mdisk0
The
resulting output:
id:number_of_extents:copy_id
1:1:1