Replacing a Fibre Channel adapter on the Virtual I/O Server

Resolving The Problem

1. Use the diagmenu command to unconfigure devices that are dependent on the
Fibre Channel adapter. Run diagmenu and then select Task Selection → Hot
Plug Task → PCI Hot Plug Manager → Unconfigure a device.

Select the disk (or disks) in question and set its state to Defined, as shown:

Unconfigure a Device

Device Name

Move cursor to desired item and press Enter. Use arrow keys to scroll.
[MORE...43]
hdisk6 Available 04-08-02 3542 (200) Disk Array Device
hdisk9 Defined 09-08-00-4,0 16 Bit LVD SCSI Disk Drive
inet0 Available Internet Network Extension
iscsi0 Available iSCSI Protocol Device
lg_dumplv Defined Logical volume
lo0 Available Loopback Network Interface
loglv00 Defined Logical volume
lpar1_rootvg Available Virtual Target Device - Disk
lpar2_rootvg Available Virtual Target Device - Disk
lvdd Available LVM Device Driver
[MORE...34]

2. Perform that task for every mapped disk (Virtual Target Device). Then set the
state of the Fibre Channel Adapter to Defined also, as shown:

Unconfigure a Device

Device Name ?
Move cursor to desired item and press Enter. Use arrow keys to scroll.
[MORE...16]
et1 Defined 05-09 IEEE 802.3 Ethernet Network Inter
et2 Defined IEEE 802.3 Ethernet Network Inter
et3 Defined IEEE 802.3 Ethernet Network Inter
et4 Defined IEEE 802.3 Ethernet Network Inter
fcnet0 Defined 04-08-01 Fibre Channel Network Protocol De
fcnet1 Defined 06-08-01 Fibre Channel Network Protocol De
fcs0 Available 04-08 FC Adapter
fcs1 Available 06-08 FC Adapter?
fscsi0 Available 04-08-02 FC SCSI I/O Controller Protocol D
fscsi1 Available 06-08-02 FC SCSI I/O Controller Protocol D?
[MORE...61]


Be sure to set Unconfigure any Child Devices to Yes. This will unconfigure the
fcnet0 and fscsi0 devices as well as the RDAC driver device dac0, as shown:

Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]

* Device Name [fcs0]
Unconfigure any Child Devices yes
KEEP definition in database yes

Following is the output of that command, showing the other devices
unconfigured:

COMMAND STATUS

Command: OK stdout: yes stderr: no

Before command completion, additional instructions may appear below.

fcnet0 Defined
dac0 Defined
fscsi0 Defined
fcs0 Defined

3. Run diagmenu, select Task Selection → Hot Plug Task → PCI Hot Plug
Manager → Replace/Remove a PCI Hot Plug Adapter.

4. Select the adapter to be replaced. Set the operation to replace, then press
Enter. You will be presented with the following dialogue:

COMMAND STATUS

Command: running stdout: yes stderr: no

Before command completion, additional instructions may appear below.

The visual indicator for the specified PCI slot has
been set to the identify state. Press Enter to continue
or enter x to exit.

5. Press Enter as directed and the next message will appear:

The visual indicator for the specified PCI slot has
been set to the action state. Replace the PCI card
in the identified slot and press Enter to continue.
Enter x to exit. Exiting now leaves the PCI slot
in the removed state.

6. Locate the blinking adapter, replace it, and press Enter. The system will
display the message Replace Operation Complete.

7. Select diagmenu, select Task Selection → Hot Plug Task → PCI Hot Plug
Manager → Install/Configure Devices Added After IPL.

8. Press Enter. This calls the cfgdev command internally and sets all previously
unconfigured devices back to Available.

9. If a Fibre Channel adapter is replaced, the settings such as zoning on the
Fibre Channel switch and the definition of the WWPN of the replaced adapter
to the storage subsystem have to be done before the replaced adapter can
access the disks on the storage subsystem.

For IBM DS4000 storage subsystems, we recommend that you switch the
LUN mappings back to their original controllers, because they may have been
distributed to balance I/O load.

IBM PowerVM Virtualization Managing and Monitoring
http://www.redbooks.ibm.com/redbooks/pdfs/sg247590.pdf