Use the lsdrivelba command to map array
MDisk logical block address (LBA) to a set of drives.
Syntax
lsdrivelba
[ -nohdr ]
[ -delim delimiter ] { -mdisklba lba
} {
-mdisk { mdisk_id
| mdisk_name } }
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 possible 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 one-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.
- -mdisklba lba
- (Required) The logical block address (LBA) on the
MDisk. The LBA must be specified in hex, with a 0x prefix.
- -mdiskmdisk_id | mdisk_name
- (Required) The
ID or name of the MDisk.
Description
This command maps the array MDisk LBA to a
set of drives.
The system provides
volumes that have LBAs for 512-byte block sizes, but back-end disks
that have a block size of either 512 or 4096 bytes can also be used.
Drives are listed in their physical size.
Use the lsdrive command to display the drive block
size, and use the lsdrive or lsarray command to list each object (the drive and the MDisk).
Table 1 describes
possible outputs.
Table 1. lsdrivelba output
| Attribute |
Value |
| drive_id |
The ID of drive; blank if no configured
array member exists (for example, in a degraded array). |
| type |
The type of information on the disk:
- parity, in which LBA range contains parity (RAID levels 5 and 6 only)
- qparity, in which LBA range contains qparity (RAID level 6 only)
- data, in which LBA range contains data
|
| drive_lba |
The LBA on the drive. |
| drive_start |
The start of range of LBAs (strip) on the
drive. |
| drive_end |
The end of range of LBAs (strip) on the
drive. |
| mdisk_start |
The start of range of LBAs (strip) on the
array MDisk. |
| mdisk_end |
The end of range of LBAs (strip) on the
array MDisk. |
An invocation example
lsdrivelba -delim : -mdisklba 0x000 -mdisk 2
The resulting output:
drive_id:type:drive_lba:drive_start:drive_end:mdisk_start:mdisk_end
0:data:0x0000000000000000:0x0000000000000000:0x0000000000000200:0x0000000000000000:0x0000000000000200
4:parity:0x0000000000000000:0x0000000000000000:0x0000000000000200:0x0000000000000000:0x0000000000000200