smp_86112
Aug 28, 2009Cirrostratus
v10 upgrade - partitions vs. volumes
I'm starting to read through the v10 upgrade docs, and came across the the references to partitions versus volumes. A couple of questions come to mind that I can't find addressed in the doc. I will be upgrading from 9.3.1 to 10 on LTM 6400s. Currently my LTMs have two available boot images according to switchboot:
HD1.1 - BIG-IP 9.3.0 Build 178.5
HD1.2 - BIG-IP 9.3.1 Build 69.0
Historically our practice has been to install upgrades in the "unused" partition in case we need a quick backoff. In this case, the unused partition is HD1.1 since we have been running 9.3.1 for a long time.
When I attempt my v10 upgrade, in my head I envisioned a similar backoff strategy where I could simply reboot and select to boot back into the 9.3.1 partition.
According to my understanding of the v10 upgrade guide, I need to maintain the old partitioning scheme if I want the ability to boot back into my 9.3.1 image if the upgrade goes bad. And so I will be using the image2disk utility without the --format option, and using the switch --instslot=HD1.1.
Do I have that right?
Also from what I read the volume scheme allows you to create multiple places to hold v10 installation images. Is this analagous to the partition scheme in 9.x? How are they different?
Also, how many boot partitions can you create in 9.x? Ideally I would like to create a third partition to hold v10, but I can't seem to find the answer to that question in the docs...
Thanks.