mirroring root FS and primary swap

[James R. Ferguson]

Hi Olga:

As long as you correctly created the mirror boot disk ('pvcreate -B', 'mkboot', etc.) and then mirrored your logical volumes in the correct order (as indicated in my earlier post) you do *not* need to start over. Reducing the mirrors and re-mirroring the disk was the correct approach.

I trust that you also specified a "low-quorum" when you did your 'mkboot':

mkboot ???a ???hpux ???lq???

If all of the above is true, then the acid test is to boot from the disk!

Regards!

...JRF...

[Olga_1]

James,
I did:
mkboot -a "hpux (;0)/stand/vmunix" /dev/rdsk/c2t6d0

Should I specify -iq ?

[Helen French]

Hi Olga:

Again, it's not "iq" , it's "-lq". This for no quorum check. If you don't specify this, then when the root disk fails, for booting from the mirror root disk, you have to interrupt the boot process, then at

ISL > hpux -lq

If you specify -lq at the mkboot, then you don't need to do this. The system will automatically boot.

HTH,
Shiju

[Olga_1]

Sorry, I did mean -lq

so the right syntax is:

mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/c2t6d0

Correct?

[Sanjay_6]

Hi Olga,

Yes you are correct. The right syntax for the boot string on mirror root disk is,

mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/cxtydz

Hope this helps.

Regds

[James R. Ferguson]

Hi Olga:

# mkboot ???a ???hpux ???lq??? /dev/rdsk/cXtYdZ

...will do fine.

Regards!

...JRF...

[Alan Riggs]

One clrification to the above:

You should issue the mkboot by itself first (to write the BOOTLIF area). Then issue mkboot -a to write the bot string. At least, that is how I learned the procedure way back in the dark ages.

[Mike_305]

Hi Olga,

Here the script will do it all.

THX - Mike