upgrade from 10.20 to 11.0 online

[Frank Li]

Hi guys,

Recently we will upgrade our file server from 10.20 to 11.0 , since there are lots of data in it ( about 200GBytes) , we don't want to backup all the data ( cost more than 10 hours ) and install hpux11.0 and resotore the data ( another 10 hours more cost ) . I think there is a easy way to upgrade the OS online with less time.

server#bdf
/dev/vg00/lvol3 139541 96170 29416 77% /
/dev/vg00/lvol1 83733 39709 35650 53% /stand
/dev/vg00/lvol8 1921493 1129571 599772 65% /var
/dev/vg00/lvol7 536475 448050 34777 93% /usr
/dev/vg00/lvol4 61389 16251 38999 29% /tmp
/dev/vg00/lvol6 528523 445412 30258 94% /opt
/dev/vg01/home 106414080 95063555 5068372 72% /export/home
/dev/vg02/home 106414080 95063555 5068372 72% /export/data


From the output , we can get the data are on another VG ( stored on a external FC60 ) , what steps should I do that when I finished installing HPUX11.0 , and if I import the VG to hpux11 so that the OS recognize the VG/data ?

Any good idea will be great appreciated !
thanks

Frank

[eran maor · Accepted solution]

Hi Frank

i will advise you not to do an apgrade but to do a cold install .

all the data that is in vg01 and vg02 dont need to be backup and restore if you are doing cold install ( but you shuold have a backup of this data )

you need first to do a ignite backup of the system , to know all the software that is install on the system because you will need to install the software again ( for the version of the new OS ) .

before you will do the install run the vgexport to export the vg01 and vg01 to a map file and save this file .

after the cold install uyou can run vgimport to get all the data from the disk .

there is a option for doing an upgrade but all the pepole will tell you that this is not advise to do , i know the the upgrade work ( did in a month ago ) but the upgrade take a long time , you need also a lot of space in /var and you need all the aplic cd .

hope for you for a easy upgrade
good luck

[Rainer von Bongartz]

Hmm.

I seem to be one of the few people here that's not talking
"do a fresh install and no upgrade !!"
I did on upgrade from 10.20 to 11.0 on serveral machines and had no problem doing this. The only problem that really occured was with the btlan driver for my 100 MB card which I had to install seperately after the upgrade.
Everything else went straightforward and my upgrade was done in three hours.

You will not be able to do a (backup | install | recover) operation in this time and when you are on production system you won't have a lot of time to do an 'academic exercise' like a fresh install !!!!!

[melvyn burnard]

Firstly, may I suggest you read the HP-UX 11.00 Installation and Update Guide at:
http://docs.hp.com/hpux/onlinedocs/5971-0642/5971-0642.html

BEFORE you decide to update or cold install.
This may help you to get where you want to be.
Secondly, ensure you have system backups using the Ignite/UX product to create make_recovery tapes, so that you can go back fairly quickly in the event of a crisis.
Third point, ensure you have all the required patches for 11.00, and any subsystems you have added on like ServcieGuard.
Fourth, ensure your application is ready to go to 11.00 and that you have the version of the app ready to install.
Last, just take the time to prepare and document the steps you will be taking and have a documented failback plan, just in case.
Hope it goes well.

[Ravi_8]

Hi, Frank
I tried upgrade several times, all time it failed and loss of data. so my advise is to have a backup.Do the vgexport, cold installation of 11.0 and vgimport. If there is loss of data after vgimport you can retrieve from backup.

[Michael Tully]

Hi Frank,

We also have been down the road of upgrading as opposed to cold install. We have found that where possible if if have the available facilities (Internal disk space after breaking your mirror on vg00) that it is much easier and of course less painful to do the cold install. We experienced many errors during the swinstall analysis phase when trying to build a kernel that cold install would be far easier. One thing to remember is to make sure that whatever road you decide to go is that you have your make_recovery tape(s) up to date.

HTH
-Michael

[Scott_14]

hi there:

just a note, I went through an upgrade a year or so ago, and we had a lot of little quirks, I beleive if possible, do the cold install.
In the upgrading book, it kinda walks you through the process of doing this, and bringing back your other groups.

best of luck.