Quantum StorNext M330 Hardware Manual page 48

Chapter 3: Basic System Operations
Upgrading Firmware
44
If Upgrading to StorNext Releases Prior to StorNext 5:
Note: After the upgrade to the primary MDC node completes,
metadata operations will be interrupted for 30 minutes or
more, and both MDC nodes will reboot, which could take an
additional 30 minutes to complete. It could be a long time
before you are able to log back in, so plan upgrade times
accordingly.
8 Convert the system to HA, according to
page 45. (Not necessary when upgrading to StorNext 5).
GUI Feedback During Upgrades
There are some indications within the GUI that the system is being
upgraded. Here are some notes about this visual feedback:
If Upgrading to StorNext 5 from StorNext 4.7.0:
• For systems without a defined virtual IP, the secondary MDC nodes is
upgraded first, followed by a fail over to the secondary MDC node,
which takes the role of the primary MDC node. The GUI will run on
the primary MDC node until the secondary MDC node completes its
upgrade, and the system fails over to the secondary MDC node. At
that point you will need to bring up the GUI for the secondary MDC
node, while the primary MDC node completes its upgrade. At the
end of updating the primary MDC node, the system will not
automatically fail over again, it only fails over once.
• If a virtual IP is used, the GUI will need to be refreshed to display the
GUI once the secondary MDC node upgrade and failover is
complete. The assumes the role of the primary when the failover
occurs. Once the original primary MDC node completes its upgrade,
it will assume the role of the secondary MDC node.
If Upgrading to StorNext Releases Prior to StorNext 5:
• On the primary MDC node, the GUI will display different status
messages throughout the installation, including messages that the
system will reboot, and red icons indicating that the primary MDC
node, secondary MDC node, File System, and Storage Manager are
also disabled.
Converting to HA
StorNext M330 Metadata Appliance Hardware Guide
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