Use the lsmdisklba command to list the MDisk and logical block
address (LBA) for the specified volume LBA.
Syntax
lsmdisklba -vdisklbavdisklba [ -copyid ] [ -delimdelimiter ] [ - nohdr ] -vdisk { vdisk_id | vdisk_name }
Parameters
- -vdisklbavdisklba
- (Required) Specifies the 64–bit hexadecimal logical block address (LBA) on the
volume. The LBA must be specified in hex, with a 0x prefix.
- -copyid
- (Optional) Specifies the volume copy ID to list the MDisk and LBA for. If this parameter is
not specified, the command lists MDisks and LBAs for all volume copies.
- -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 that is 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.
- vdisk_id | vdisk_name
- (Required) Specifies the volume name or ID.
Description
The lsmdisklba command returns the logical
block address (LBA) of the MDisk that is associated with the volume LBA. For mirrored volume,
the command lists the MDisk LBA for both the primary and the copy.
If applicable, the
command also lists the range of LBAs on both the volume and MDisk that are mapped in the same
extent, or for thin-provisioned disks, in the same grain. If a thin-provisioned volume is
offline and the specified LBA is not allocated, the command displays the volume LBA range
only.
The mdisk_lba field provides the corresponding LBA on the real capacity for the
input LBA. For compressed volume copies it is empty, and the system displays only the range of
physical LBAs where the compressed input LBA is located.
This table summarizes the data
that can be returned with this command.
Table 1. lsmdisklba command output. Command output
| Field |
Fully allocated, single copy volume |
LBA not allocated on thin-provisioned volume |
Mirrored volume with one normal copy and one
offline thin-provisioned copy |
|---|
| Normal copy |
Thin-provisioned copy |
|---|
| copy_id |
yes |
yes |
yes |
yes |
|---|
| mdisk_id |
yes |
no |
yes |
no |
|---|
| mdisk_name |
yes |
no |
yes |
no |
|---|
| type |
allocated |
unallocated |
allocated |
offline |
|---|
| mdisk_lba |
yes |
no |
yes |
no |
|---|
| mdisk_start |
yes |
no |
yes |
no |
|---|
| mdisk_end |
yes |
no |
yes |
no |
|---|
| vdisk_start |
yes |
yes |
yes |
yes |
|---|
| vdisk_end |
yes |
yes |
yes |
yes |
|---|
An invocation
example
lsmdisklba -vdisk 0 -vdisklba 0x123
The resulting
output:
copy_id mdisk_id mdisk_name type mdisk_lba mdisk_start mdisk_end vdisk_start vdisk_end
0 1 mdisk1 allocated 0x0000000000100123 0x0000000000100000 0x00000000001FFFFF 0x00000000 0x000FFFFF