3.1.2 Matrix Server Administration Guide

Chapter 18: SAN Maintenance 245

2. If possible, save configuration information from the original switch.

Some items such as the zone configuration are not needed and are just

insurance against further failures. Other items such as the IP address

are available elsewhere but might conveniently be captured here. One

way to record the information is to capture the output of a CLI session.

The following commands show types of data that might be useful:

show ip ethernet for the IP address.

show switch for the fabric operating mode.

show zoning for the zone configuration.

3. After the original switch has been powered down, power up the new

switch and set its IP address to address of the old switch to allow EWS

access. The IP address can be set either from the serial port or by

connecting to the current, possibly default, IP address. Verify that the

new switch responds to the IP address.

4. Connect to the EWS and take the switch offline using the Operations >

Switch > Online State tab.

5. Make the switch operating mode and domain ID acceptable to the

original fabric. This can be done either by consulting the fabric or by

taking the values from the data saved in step 2. This procedure might

include changing the default zone setting as directed by EWS when

changing interoperation mode. Any existing zone configuration on

the new switch should be removed to allow the fabric to properly

communicate current zoning when the switch joins the fabric.

6. Add the private community to the Configure > Management > SNMP

tab and ensure that it is write enabled.

7. Connect the FC connectors to the new switch. Be sure to plug them

into the same ports as on the original switch.

8. Bring the switch online. The new switch should now connect to the

rest of the fabric. Verify that the HBAs on the servers log into the new

switch in the expected locations.

9. Verify that the new switch has been configured into the matrix. Run

the /opt/polyserve/sbin/mxmpio status command, which shows

whether failover is enabled or disabled. (See mxmpio(8) for details.)