Dot Hill Systems II 200 FC Manuale Utente
Chapter 7 Maintaining Your Array
7-7
7.4
Upgrading Firmware
Caution –
Be particularly careful about downloading and installing PLD firmware. If
the wrong firmware is installed, or the firmware is installed on the wrong device, your
controller might be rendered inoperable. Always be sure to upgrade your SES
firmware first before trying to determine if you need a PLD upgrade.
controller might be rendered inoperable. Always be sure to upgrade your SES
firmware first before trying to determine if you need a PLD upgrade.
7.4.1
Installing Firmware Upgrades
It is important that you run a version of firmware that is supported by your array.
Caution –
Before updating your firmware, make sure that the version of firmware you
want to use is supported by your array.
To download new versions of controller firmware, or SES and PLD firmware, use one
of the following tools:
of the following tools:
■
SANscape CLI (with an in-band connection, for Linux and Microsoft Windows
hosts, and for servers running the Solaris operating environment)
hosts, and for servers running the Solaris operating environment)
■
SANscape program (with an in-band connection, for Solaris and Microsoft
Windows hosts)
Windows hosts)
■
Firmware application (for controller firmware download only from a Microsoft
Windows host with an out-of-band serial port connection)
Windows host with an out-of-band serial port connection)
You should not use both in-band and out-of-band connections at the same time to
manage the array. You might cause conflicts between multiple operations.
manage the array. You might cause conflicts between multiple operations.
7.4.2
Controller Firmware Upgrade Features
The following firmware upgrade features apply to the controller firmware:
■
Redundant Controller Rolling Firmware Upgrade
When downloading is performed on a dual-controller system, firmware is flashed
onto both controllers without interrupting host I/O. When the download process is
complete, the primary controller resets and lets the secondary controller take over
the service temporarily. When the primary controller comes back online, the
secondary controller hands over the workload and then resets itself for the new
firmware to take effect. The rolling upgrade is automatically performed by
controller firmware, and the user’s intervention is not necessary.
When downloading is performed on a dual-controller system, firmware is flashed
onto both controllers without interrupting host I/O. When the download process is
complete, the primary controller resets and lets the secondary controller take over
the service temporarily. When the primary controller comes back online, the
secondary controller hands over the workload and then resets itself for the new
firmware to take effect. The rolling upgrade is automatically performed by
controller firmware, and the user’s intervention is not necessary.
■
Automatically Synchronized Controller Firmware Versions