Learn how to recover from disks not displaying when trying
to boot or install a client logical partition.
Occasionally, the disk that is needed to install the client
logical partition cannot be located. In this situation, if the client
is already installed, start the client logical partition. Ensure that
you have the latest levels of the software and firmware. Then ensure
that the Slot number of the virtual Small Computer
Serial Interface (SCSI) server adapter matches the Remote partition
virtual slot number of the virtual SCSI client adapter.
- Ensure that you have the latest levels of the Hardware Management Console, firmware, and Virtual I/O Server. Follow these
steps:
- To check whether you have the latest level of the HMC, see the Installing and configuring the Hardware Management Console
. For more information
about Installing and configuring the Hardware Management Console
, see Installing
and configuring the Hardware Management Console.
- Ensure that you have the latest firmware.
- To check whether you have the latest
level of the Virtual I/O Server,
see Updating the Virtual I/O Server.
- Ensure the server virtual SCSI adapter slot number is mapped
correctly to the client logical partition remote slot number:
- In the navigation area, expand and
click the server on which the Virtual I/O Server logical partition
is located.
- In the contents area, select the Virtual I/O Server logical partition.
- Click Tasks and select Properties.
- Click the Virtual Adapters tab.
- Click Virtual SCSI.
- If the values of the Remote Partition and Remote
Adapter are Any Partition and Any
Partition Slot, then complete the following steps:
- Expand Virtual SCSI and click the slot
number.
- Select Only selected client partition can connect.
- Enter the client logical partition's ID and adapter and click OK
- Click Virtual SCSI.
- Record values of the Remote Partition and Remote
Adapter. These values represent the client logical partition and
the slot number of the client's virtual SCSI adapter that can connect
to the associated server adapter. For
example, the values of Remote Partition, Remote Adapter,
and Adapter are as follows: AIX_client, 2,
3. This means that virtual SCSI adapter 2 on the client logical partition
AIX_client can connect to the Virtual I/O Server virtual SCSI
adapter 3.
- Repeat steps a through g for the client logical partition.
- Ensure the server virtual SCSI adapter slot number is mapped
correctly to the client logical partition remote slot number. Follow
these steps:
- Right-click the server profile, and select Properties.
- Click the Virtual I/O Server tab.
- If the Only selected remote partition and
slot can connect radio button is not selected, select
it.
- Note the Remote partition and Remote partition
virtual slot number values. This shows the client logical partition
name and the client logical partition virtual slot number. This is
the client logical partition and slot number that can connect to the
slot given in the Slot number dialog box in
the Virtual SCSI Adapter Properties window.
- Repeat items a through e in this step for the client
logical partition.
- The Adapter value on the client
logical partition must match the Remote Adapter on
the Virtual I/O Server logical
partition, and the Adapter value on the Virtual I/O Server logical partition
must match the Remote Adapter on the client
logical partition. If these numbers do not match, from the HMC, modify the profile
properties to reflect the correct mapping.
- From the Virtual I/O Server command
line, type cfgdev.
- Shut down and reactivate the client logical partition.
- From the Virtual I/O Server command
line, type lsmap -all. You see results similar to
the following:
SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost0 U9113.550.10BE8DD-V1-C3 0x00000002
VTD vhdisk0
LUN 0x8100000000000000
Backing device hdisk5
Physloc U787B.001.DNW025F-P1-C5-T1-W5005076300C10899-L536F000000000000
In this example, the client logical partition ID is 2
(0x00000002). Note: If the client logical partition
is not yet installed, the Client Partition ID is 0x00000000.
The
slot number of the server SCSI adapter is displayed under Physloc
column. The digits following the -C specify the slot
number. In this case, the slot number is 3.
- From the Virtual I/O Server command
line, type lsdev -virtual. You see results similar
to the following:
name status description
vhost0 Available Virtual SCSI Server Adapter
vhdisk0 Available Virtual Target Device - Disk
Note: As an alternative to the HMC, you can use the IBM® Systems Director Management Console (SDMC) to recover from disks
not displaying when trying to boot or install a client logical partition.