Changing to extended edge pid format – HP Brocade 4Gb SAN Switch for HP BladeSystem p-Class User Manual
Page 212
212 Configuring the PID format
Changing to extended edge PID format
In rare cases, you may be affected by the presence in the fabric of drivers that rely on static binding to the
dynamically assigned PID; for example, you may be installing a switch running Fabric OS v4.2.0 into a
fabric consisting solely of Fabric OS v2.0.0 and later or v3.1.2 and later switches. In these cases, if you
absolutely cannot reboot the affected servers when you upgrade your switches, you can choose Extended
Edge PID format. It uses the same PID mapping for the first 16 ports and can support switches and
directors with higher port counts. However, because Extended Edge format only supports 128 ports per
domain, its use can lead to port addressing issues in directors.
Use the following procedure only if your fabric contains devices that are bound statically and you cannot
reboot the host.
1.
Determine if the current switch firmware versions meet the minimum supported version levels.
lists the earliest Fabric OS version levels that support Extended Edge PID format. Use this
table to determine if you need to upgrade the firmware in the switches in your fabric before you
change the PID format.
2.
Update switch firmware as necessary.
a. Issue the
fabricshow
command to verify the total number of switches in the fabric.
b. Download the correct firmware version to each switch as necessary.
c. Reboot all switches.
d. Verify that the switches form a single fabric and that all domain IDs do not change after forming the
fabric.
e. Verify that the number of switches is the same.
3.
Disable the switch by issuing the
switchdisable
command.
4.
Change the switch configuration in the fabric to Extended Edge PID format.
a. Configure Extended Edge PID (Format 2) on each switch. (See
for a sample configure
command on a HP StorageWorks switch running Fabric OS v3.1.2 and later and see
for
a sample configure command on an HP StorageWorks switch running Fabric OS 4.2.0 and later.)
b. Issue the
switchenable
command on all switches.
c. Verify that all the switches form a fabric.
d. Issue the
switchshow
command to verify the interswitch links (ISLs) are correct and the device
links are correct.
e. Issue the
fabricshow
command to verify that the number of switches are the same as those when
starting this procedure.
f. Issue the
nsallshow
command to verify the total number of devices is the same as those when
starting this procedure.
5.
For dual fabrics, repeat
through
for the other fabric.
Table 38
Earliest Fabric OS versions for extended edge PID format
1 GB switches
2 GB switches: SAN Switches
2/8-EL and 2/16
2 GB switches: SAN Switches
2/8V, 2/16V, 2/32, Core
Switch 2/64, and SAN
Director 2/128
2.6.2
3.1.2
4.2.0