topic Re: Ignite Restore in Operating System - HP-UX

Ignite Restore

Sanjiv Sharma_1 — Mon, 18 Mar 2002 09:29:14 GMT

Hi,

I have taken the backup of an rp8400 Server with HPUX 11i through command
# make_tape_recovery -a /dev/rmt/2mn -Iv -x inc_entire=vg00
Root Disk of rp8400 is 36 GB.

Now I have a requirement to install this backup on rp5470 Server. Will it be successful?
Root Disk of rp5470 is 18 GB.

What all steps needs to be followed and precautions needs to be taken?

Thanks in advance.
Raje.

Re: Ignite Restore

Animesh Chakraborty — Mon, 18 Mar 2002 09:34:49 GMT

Hi Raje,
How much is used out of 36 GB ?
do vgdisplay vg00
look for Alloc PE * 4= total in MB

Re: Ignite Restore

Justo Exposito — Mon, 18 Mar 2002 11:52:18 GMT

Hi Raje,

You can stop the recovery process and interact with it in order to select the necesary part of the make recovery tape to a sucessfull recover.

This is because you don't have enoght disk to recover 36Gb into 18Gb.

Regards,

Justo.

Re: Ignite Restore

harry d brown jr — Mon, 18 Mar 2002 12:25:07 GMT

Raje,

Well if you were restoring to another RP8400, then these rules usually apply: if you weren't using all 36GB and were using less than 12GB (not a typo - 50% of 18GB + 25% of 18GB), you can restore it, providing you MANUALLY adjust your filesystems, which means you have to interactively restore your system.

But, because you are restoring to an RP5410 from an RP8400, you are going to encounter a lot of issues, but you should be able to get through them. You will have to interactively modify your lan settings, file systems, and a few other things. You got a 80-20 chance of success.

live free or die
harry

Re: Ignite Restore

pap — Mon, 18 Mar 2002 14:35:35 GMT

Hi Raje,

1. first of all check the used space
of /dev/vg00 in machine rp8400.
If it is less than 18 GB then you can definately restore the tape on new machine.

2. You can recreate the tape on 8400 with minimal OS components and you can restore the same tape to new machine.

3. During ignite restore you can specify the size of file systems if you want to adjust them. For that you need to select advance installation option.

4. You can unmount the file systems occupying more space in /dev/vg00 and then take make_recovery on machine rp8400. This will reduce the make_recovery tape size to significant level.

Hope this helps.

-Piyush.