Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Replacing a host bus adapter

This section describes replacing an online host bus adapter (HBA) when DMP is

managing multi-pathing in a Storage Foundation Cluster File System (SFCFS)

cluster. The HBA World Wide Port Name (WWPN) changes when the HBA is

replaced. Following are the prerequisites to replace an online host bus adapter:

■ A single node or two or more node CFS or RAC cluster.

■ I/O running on CFS file system.

■ Hotplug capable server.

To replace an online host bus adapter

Identify the HBA and its WWPN(s), which you want to replace.

Determine the hardware path or paths to be disabled on one of the nodes,

which has a hotplug capability.

# vxdmpadm getctlr all

LNAME PNAME VENDOR CTLR-ID

============================================================

c3 0/1/1/1.0x2 - -

c2 0/1/1/0.0x0 - -

c16 0/3/1/0.0x50060e8004278356 - -

c18 0/4/1/0.0x50060e8004278366 - -

c15 0/2/1/0.0x50060e8004278346 - -

c13 0/4/1/1.0x50060e8004278376 - -

A single HBA may show as multiple controllers (c#) in the vxdmpadm getctlr

output. To replace the HBA, you must disable each of these controllers in step

3 and enable each of them in step 10.

Ensure that you have a compatible spare HBA for hot-swap.

Stop the I/O operations on the HBA port(s) and disable the DMP subpath(s)

for the HBA that you want to replace.

# vxdmpadm disable ctrl=ctrl#

For example:

# vxdmpadm disable ctlr=c16

Prepare to replace the HBA:

# /usr/bin/olrad -r slot_ID

The above command performs a Critical Resource Analysis (CRA).

205Online dynamic reconfiguration

Replacing a host bus adapter