3 weeks ago
Is possible to change vg00 version?
I want to migrate a system from 1.0 to 2.2
I try booting in maintenance mode
i can change a vg(not vg00) with root mounted
If i try to change vg00,is impossible because
usr is a vg00 volume.
Someone know an howto for install or change vg00
to version 2.2?
3 weeks ago - last edited 3 weeks ago
The first question is: why would you want to do this?
vg00 is quite unique in that is is not just the root volume, but it is attached to the boot, swap and dump areas, all of which are tied to either the processor boot code or very low level HP-UX code associated with crash handling.
From the vgversion man page:
Volume group versions 2.2 and higher do support root, boot, swap, and dump. But the vgversion command currently does not support the migration of a volume group version 1.0 with bootable physical volumes to version 2.2 or higher in the HP-UX 11i v3 March 2010 Update.
What is unclear in this doc is whether it is currently supported with the latest (2013) update.
However, the biggest issue is for vg00 recovery. Ignite cannot create a vg00 2.x VG. And if the reason to migrate to version 2.2 is so you can have a petabyte sized vg00, that is a big misunderstanding of how to manage vg00. vg00 is the OS, config files, libraries and product installation. Keeping massive amounts of data in vg00 will negate any perceived value in having just one VG for the entire system. And then there's the big issue with backup tools such as Data Protector, Netbackup, etc.
And even if HP does update vgversion (and HP-UX and crash dump tools and swap code and and Service Guard, and vPars, and...) to allow for version 2.2, I would not recommend moving that direction unless you have time (several days) to test implementation, compatibility and bare-metal recovery before any movement into production.
3 weeks ago
Never tried it, but you could try with a ignite backup/restore, take a make_*_recovery, then in advance settings before you restore your image in ignite check if you can select vg00 version 2.2.
"Ignite-UX now supports boot, dump, swap and data volumes for LVM volume group version 2.2 for HP-UX 11iv3, as well as the earlier version 1.0."