Before you move a logical partition,
you can specify a new name for a virtual target device, if needed.
After you move the logical partition, the virtual target device assumes
the new name on the Virtual I/O Server (VIOS)
partition on the destination system.
Before you start, verify that the management partitions are
at version 2.1.2.0, or later. This requirement applies to both the
source management partition and the destination management partition.
Where possible, partition mobility preserves
user-defined names of the virtual target devices on the destination
system. Partition mobility does not preserve vtscsix IDs.
In
some situations, partition mobility might
not be able to preserve a user-defined name. For example, when the
name is already in use on the destination VIOS partition.
If
you want to maintain user-defined names on the destination VIOS partition,
you can specify a new name for the virtual target device to use on
the destination VIOS partition. If you do not specify a new name, partition mobility automatically
assigns the next available vtscsix name to the
virtual target device on the destination VIOS partition.
- To view the names and mappings of the virtual target devices,
run the lsmap command as follows. Run the command
from the command-line interface on the source VIOS partition:
lsmap -all
The output might look like
the following output:SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost4 U8203.E4A.10D4431-V8-C14 0x0000000d
VTD client3_hd0
Status Available
LUN 0x8100000000000000
Backing device hdisk5
Physloc U789C.001.DQ1234#-P1-C1-T1-W500507630508C075-L4002402300000000
VTD client3_hd1
Status Available
LUN 0x8200000000000000
Backing device hdisk6
Physloc U789C.001.DQ1234#-P1-C1-T1-W500507630508C075-L4002402400000000
In
this example, the user-defined names of the virtual target devices
are client3_hd0 and client3_hd1.
- To specify a user-defined name for a virtual target device
to use on the destination VIOS partition, run the chdev command
as follows. Run the command from the command-line interface on the
source VIOS partition:
chdev -dev dev_id -attr mig_name=partition_mobility_id
where:- dev_id is the user-defined name of the virtual
target device on the source VIOS partition.
- partition_mobility_id is the user-defined name
that you want the virtual target device to have on the destination
VIOS partition.
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