Version Rollback - HP A7500 Series Configuration Manual

Table 14 Member switch-based ISSU upgrade (incompatible)
To do...
Enter system view
Upgrade a slave switch
Perform a manual active and
standby switchover to upgrade
the whole IRF fabric
NOTE:
If you do not execute the issu accept or issu commit command before the rollback timer expires, the
ISSU upgrade ends automatically, the software reverts to the previous version, and the MPUs resume
their former roles.
After executing the issu commit command, you cannot perform version rollback with the issu rollback
command.

Version rollback

Version rollback enables your switch to roll back to the previous version when you cancel an upgrade
during the upgrade process for any reason (for example, the new system software image is broken).
Version rollback is triggered by either of the following events:
Auto-rollback triggered by rollback timer expiration. When the issu load command is executed, the
•
system automatically creates a version rollback timer. If you do not execute the issu accept or issu
commit command before the rollback timer expires, the system automatically stops the ISSU process
and reverts to the previous software version. If you execute the issu accept or issu commit command,
the system deletes the rollback timer and does not perform the rollback operation in the upgrade
process.
Manual rollback at the command line interface (CLI). When your switch is in the load, switchover,
•
or accept state, you can use the issu rollback command to reboot the upgraded cards with the
previous version of the system software image or to delete the upgrade hotfixes. The system reverts
to the previous version and the MPUs resume their former roles.
Use the command...
system-view
issu load file upgrading-filename
chassis chassis-number force
issu run switchover chassis
chassis-number
137
Remarks
—
Required
chassis-number is the member ID of a
slave switch.
Execution of this command reboots a
slave switch. Perform the next
operation after the slave switch is
rebooted.
Required
The value of the chassis-number
argument provided in this command
must be the same as that specified in
the issu load command.
Execution of this command reboots
the former master.