HP StorageWorks Clustered File System 3.2.1 Windows Storage Server Edition Administration Guide (February 2006)

Chapter 16: SAN Maintenance 170
Also verify that no zone conflicts are being reported on the inter-switch
links (ISL).
To ensure a highly available configuration after the switch has been
replaced, verify that all servers have eligible I/O paths through the
replaced switch. You can use the PowerPath powermt command or the
Secure Path spmgr command to do this.
Replace a McDATA FC Switch
To replace a McDATA FibreChannel switch, complete these steps:
1. Stop HP Clustered File System on any servers that are connected only
to the original switch.
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 the type 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 the IP address to the old switch's address 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 information saved in step 2. This procedure
might include changing the default zone setting as directed by EWS
when changing interoperation mode.