HP StorageWorks Fabric OS 6.x administrator guide (5697-7344, March 2008)

Fabric OS 6.x administrator guide 169
Refer to the Fabric OS Compatibility section of the HP StorageWorks Fabric OS 6.x release notes, for the
recommended firmware version.
If the 4/8 SAN Switch, 4/16 SAN Switch, SAN Switch 2/8V, SAN Switch 2/16V, SAN Switch 2/32,
Brocade 4Gb SAN Switch for HP p-Class BladeSystem, Brocade 4Gb SAN Switch for HP c-Class
BladeSystem, SAN Switch 4/32, 4/64 SAN Switch, SAN Switch 4/32B, or 400 MP Router switches are
adjacent and you start firmware downloads on them at the same time, there may be traffic disruption.
To determine if you need to upgrade switches connected to the switch you are upgrading, use the following
procedure on each connected switch to display firmware information and build dates.
To find switch version:
1. Connect to the switch and log in as admin.
2. Enter the version command.
The following information is displayed:
• Kernel displays the version of switch kernel operating system.
• Fabric OS displays the version of switch Fabric OS.
• Made on displays the build date of firmware running in switch.
• Flash displays the install date of firmware stored in nonvolatile memory.
• BootProm displays the version of the firmware stored in the boot PROM.
Obtaining and decompressing firmware
Firmware upgrades are available for customers on the HP website at http://www.hp.com.
You must decompress the firmware before you can use the firmwareDownload command to update
the firmware on your equipment. Use the UNIX tar command for .tar files, the gunzip command for all .gz
files, or a Windows unzip program for all .zip files
When you unpack the downloaded firmware, it expands into a directory that is named according to the
version of Fabric OS it contains. For example, if you download and unzip Fabric OS 6.0 zip, it expands
into a directory called 6.0. When you issue the firmwareDownload command, there is an automatic
search for the correct package file type associated with the switch. Specify only the path up to and
including the 6.0 directory.
Performing firmwareDownload on switches
HP StorageWorks 4/8 SAN Switch, 4/16 SAN Switch, Brocade 4Gb SAN Switch for HP p-Class
BladeSystem, Brocade 4Gb SAN Switch for HP c-Class BladeSystem, SAN Switch 4/32, 4/64 SAN
Switch, SAN Switch 4/32B, and 400 MP Router switches also maintain primary and secondary partitions
for firmware. The firmwareDownload command defaults to an autocommit option that automatically
copies the firmware from one partition to the other.
You should not override autocommit under normal circumstances; use the default. See ”Testing and
restoring firmware on directors” on page 180 for details about overriding the autocommit option.
Overview of the firmware download process on switches
The following list describes the default behavior after you enter the firmwareDownload command
(without options) on HP StorageWorks 4/8 SAN Switch, 4/16 SAN Switch, Brocade 4Gb SAN Switch for
HP p-Class BladeSystem, Brocade 4Gb SAN Switch for HP c-Class BladeSystem, SAN Switch 4/32, 4/64
SAN Switch, SAN Switch 4/32B, and 400 MP Router switches:
• The Fabric OS downloads the firmware to the secondary partition.
• The system performs a high-availability reboot (haReboot). After the haReboot, the former
secondary partition is the primary partition.
• The system replicates the firmware from the primary to the secondary partition.
• Software application (SA) software is upgraded only when firmwareDownload is issued with the SA
option. Refer to the application’s manual for further information.