User Manual

Fabric OS 5.0.0 procedures user guide 79
Checking connected switches
If the switch to be upgraded is running v4.1.0 firmware (or later), HP recommends that all switches
directly connected to it be running versions no earlier than v2.6.1, v3.1.0, or v4.1.0. If some connected
switches are running older firmware, upgrade them to at least the earliest recommended version (shown
in Table 11) before upgrading firmware on your switch.
If
To determine whether you need to upgrade connected switches before upgrading your switch, use the
following procedure on each connected switch to display firmware information and build dates.
1. Connect to the switch and log in as admin.
2. Issue the version command.
The following information is displayed:
About the download process
The firmwaredownload command downloads unzipped switch firmware from an FTP server to the
switch’s nonvolatile storage area.
In the Core Switch 2/64 and SAN Director 2/128, this command by default downloads the firmware
image to the two CP cards in rollover mode, to prevent disruption to application services. This operation
depends on HAHA support. If HA is not available, experienced technicians can upgrade the CPs one at
a time, using the -s option.
Table 11 Recommended firmware
HP StorageWorks switch
1
1. During code activation on 2 GB switches, SAN Switch 2/8V, SAN Switch 2/16V, or SAN Switch 2/32
running Fabric OS v4.1.0 or later, data continues to flow between hosts and storage devices; however,
fabric services are unavailable for a period of approximately 50-55 seconds. Possible disruption of the
fabric can be minimized by ensuring that switches logically adjacent to these models (directly connected
via an ISL) are running at the minimum Fabric OS v2.6.1 or later, v3.1.0 or later, or v4.1.0 or later. If 2 GB
switches, SAN Switch 2/8V, SAN Switch 2/16V, or SAN Switch 2/32 are adjacent and you start firmware
downloads on them at the same time, I/O might be disrupted.
Earliest recommended Fabric OS version
1 GB
v2.6.1
SAN Switch 2/8-EL, SAN Switch 2/16-EL,
SAN Switch 2/16
v3.1.0
SAN Switch 2/8V, SAN Switch 2/16V
v4.2.0
SAN Switch 2/32
v4.1.0
SAN Switch 4/32
v4.4.0
Core Switch 2/64
v4.1.0
SAN Director 2/128
v4.2.0
• 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