Issu Method For An Incompatible Version; Issu Command Series; Hardware Requirements For Implementing Issu - HP 10500 Series Configuration Manual

switching fabric card upgrade when the device has multiple switching fabric cards that support
this method.

ISSU method for an incompatible version

Only one method is available for an ISSU to an incompatible version: incompatible upgrade. This
method reboots the device to load the new software. To reduce service interruption during the upgrade,
implement hardware redundancy.

ISSU command series

The switch provides two series of commands for ISSU: install series and issu series.
Table 14 Comparison between the two command series
Item
Required compatibility
between the old and new
software versions
Support installing and
uninstalling patches?
Upgrade mode
Affected scope of the
upgrade operation
Technical skill
requirements
Recommended for
common administrators?

Hardware requirements for implementing ISSU

Log in to the device through the console port. If you use Telnet or SSH, you might be disconnected
•
from the device before the ISSU is completed.
In standalone mode, the device must have two MPUs, and both MPUs must be operating correctly.
•
Service disruption is unavoidable for a reboot upgrade on a single-MPU device.
In IRF mode, the IRF fabric must have two or more MPUs, and all MPUs must be operating correctly.
•
Service disruption is unavoidable for a reboot upgrade on a single-MPU IRF fabric.
• If the switching fabric cards support sequential upgrade, the device must have two or more such
cards, and the cards must be operating correctly.
For a successful upgrade, make sure the hardware is operating correctly and is not being
•
upgraded.
issu series commands
Compatible or incompatible.
No.
Upgrade an IRF fabric chassis by
chassis.
Large.
Low, suitable for most
administrators.
Yes.
118
install series commands
Compatible.
Yes.
Advanced upgrade mode, upgrade the
system MPU by MPU.
Small.
High. Administrators must have a
profound understanding of the system and
the effects of each upgrade action.
No.