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•
Rebooting Interconnect devices and fabric control Routing Engines one at a time, so
that one Interconnect device or one fabric control Routing Engine is always operational
•
Switching mastership of a Node group to the backup Node device before upgrading
the master Node device
•
Specifying an upgrade group if you want all Node devices in a Node group to be
upgraded in parallel (which shortens the time of the upgrade)
•
Rebooting devices automatically as part of the nonstop upgrade process
When performing a nonstop upgrade, start with the Director group upgrade, then issue
the fabric upgrade, and end with the Node group upgrades.
NOTE:
Because there is no redundancy for Node groups containing a single
Node device, traffic loss occurs when the device reboots during the upgrade.
For node-groups defined with two node-devices, both must be online in order
for upgrade to succeed.
NOTE:
Before you install the software, we recommend that you back up your
current configuration files by issuing the
request system software
configuration-backup
command.
NOTE:
Before you can perform a nonstop software upgrade in your QFabric
system, you must first upgrade your system to Junos OS Release 12.2 by using
a conventional upgrade method such as issuing the
request system software
add component all
command.
This topic describes the following tasks:
•
Backing Up the Current Configuration Files on page 446
•
Downloading Software Files Using a Browser on page 447
•
Retrieving Software Files for Download on page 447
•
Performing a Nonstop Software Upgrade for Director Devices in a Director
Group on page 448
•
Performing a Nonstop Software Upgrade for Interconnect Devices and Other
Fabric-Related Components on page 448
•
(Optional) Creating Upgrade Groups for Node Groups on page 448
•
Performing a Nonstop Software Upgrade on a Node Group on page 449
Backing Up the Current Configuration Files
Supported Platforms
Copyright © 2015, Juniper Networks, Inc.
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