Use the lshostvdiskmap command to display a list of volumes that are
mapped to a host. These volumes are the volumes that are recognized by the specified
host.
Syntax
lshostvdiskmap [ -nohdr ] [ -delim delimiter ] [ { host_id | host_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 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.
- host_id | host_name
- (Optional) Specifies the host in terms of its ID or name. The command displays a list of all the
volumes that are mapped to the specified host and the Small Computer System Interface (SCSI) ID by
which they are mapped. If you do not specify a host ID or name , the command displays a list of all
recognized volume mappings.
Description
This command displays a list of volume IDs and names. These volumes are the volumes that
are mapped to the specified host; that is, they are visible to the specified host. The SCSI LUN ID
is also displayed. This SCSI LUN ID is the ID by which the volume is recognized by the
host.
Each volume that is exported by the clustered system (system) is assigned a unique virtual path
(VPATH) number. This number identifies the volume and determines which volume corresponds to the
volume that the hosts recognize. This procedure must be completed by using the command-line
interface.
For a specific volume based on which operating system and multipath software are used, you can
use different commands to determine the VPATH serial number. For example, issuing datapath
query device finds the VPATH serial number for volumes that are mapped to AIX
sddpcm.
Find the host that is defined to the system that corresponds with the host that you are working with.
- The worldwide port names (WWPNs) are an attribute of the host bus adapter (HBA). You can find
the WWPNs by looking at the device definitions that are stored by your operating system. For
example, on AIX® they are in the Object Data Manager (ODM), in Windows® they are in the Device
Manager details for the specified HBA.
- Verify which host is defined to the system that these ports belong to. The ports are stored as
part of the detailed view, so you must list each host in turn by issuing the following command:
lshost host_name | host_id
where
host_name | host_id is the name or ID of the host. Check for matching WWPNs.
Note: Consider this when you name your hosts. For example, if the actual host is called
orange, also name the host that is defined to the system
orange.
When you define the
hostname and the
vpath serial number
to the system, issue the following command:
lshostvdiskmap hostname
where
hostname is the name of the host. A list is displayed. Look for the volume UID
that matches the
vpath serial number and record the volume name or ID.
The command returns the following values:
- id
- Indicates the host ID in the output for lshostvdiskmap.
- name
- Indicates the host name in the output for lshostvdiskmap.
- SCSI_id
- Specifies the SCSI ID.
- host_cluster_id
- Indicates the unique ID for a host system.
- host_cluster_name
- Indicates the unique name for a host system.
- vdisk_id
- Indicates the ID of the volume.
- vdisk_name
- Indicates the name of the volume.
- vdisk_UID
- Indicates the UID of the volume.
- IO_group_id
- Indicates the ID of the input/output (I/O) group in which the host volume mapping exists.
- IO_group_name
- Specifies the name of I/O group in which the host volume mapping exists.
An invocation example
lshostvdiskmap -delim : 2
The resulting output:
id:name:SCSI_id:host_id:host_name:vdisk_id:vdisk_name:vdisk_UID:IO_group_id:IO_group_name
2:host2:0:5:vardy1:10:vdisk10:6005076801958001500000000000000A:0:iogrp0
2:host2:1:4:vardy2:11:vdisk11:6005076801958001500000000000000B:1:iogrp1
2:host2:2:3:vardy3:12:vdisk12:6005076801958001500000000000000C:0:iogrp0
2:host2:3:2:vardy4:13:vdisk13:6005076801958001500000000000000D:1:iogrp1
2:host2:4:1:vardy5:14:vdisk14:6005076801958001500000000000000E:1:iogrp0
An invocation example
lshostvdiskmap 0
The resulting output:
id name SCSI_id host_id host_name vdisk_UID IO_group_id IO_group_name mapping_type host_cluster_id host_cluster_name
0 vdisk0 0 1 hvlab02c2 6005076801D901A3F800000000000000 0 io_grp0 shared 0 VMware
0 vdisk0 0 4 vmlab02c1 6005076801D901A3F800000000000000 0 io_grp0 shared 0 VMware
0 vdisk0 0 5 vmlab02c2 6005076801D901A3F800000000000000 0 io_grp0 shared 0 VMware
0 vdisk0 0 24 vmlab14c1 6005076801D901A3F800000000000000 0 io_grp0 shared 0 VMware
0 vdisk0 0 25 vmlab14c2 6005076801D901A3F800000000000000 0 io_grp0 shared 0 VMware
0 vdisk0 0 26 vmlab15 6005076801D901A3F800000000000000 0 io_grp0 private