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CirrusUpgrading Bigip LTM from v11.4.1 HF9 to v12.1
I am running Bigip LTM v11.4.1 HF9 on a 2000 Series C112 hardware platform. Its an HA clustered pair in active/passive mode. I want to upgrade to v12.1. Does anyone know a link or documentation I can follow to perform this upgrade?
Also if you know of any gotchas that I should be aware of, that would be great.
I have an idea of the process:
- Create a backup UCS file for both nodes.
- Reactive the license
- install v12.x in a separate partition on both nodes
- Set the new partition as the boot partition and copy the current config
Here is where things get fussy for me
- Which node do I switch boot first? The active or the passive node?
- Do I have to break the cluster before I switch boot into the new partition?
- If I switch boot the passive node first, how do I prevent the passive node from coming up as the active node? Last time I tried this step during an upgrade, both nodes were active at the same time and I would like to prevent this.
Any help is appreciated.
2 Replies
TayF5unNimbostratus
Hello, 1-You should upgrade passive one first. 2-After upgrade passive one and boot with new version, you should switch active-passive 3-Finally, you can upgrade the passive one which is originally active.
You don't have to break cluster.
Detailed instructions for upgrading multiple BIG-IPs in a Device Service Cluster (or HA-pair) are in the BIG-IP Systems Upgrading Software guide.
