Boot disk

[brian_31]

We have N-Class and setting up raid 1(Mirroring). We have to setup an alternate boot disk. What should i have on the alternate boot disk and how to configure that.

Thanks
Brian.

[Patrick Wallek · Accepted solution]

Here are some threads from the Forums that give instructions:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x029e0559ff7cd4118fef0090279cd0f9,00.html

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xd17f37f45ef7d4118fef0090279cd0f9,00.html

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x5bb9a1abbac8d5118ff10090279cd0f9,00.html

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x34378ffa98a2d5118ff10090279cd0f9,00.html

[Sanjay_6]

Hi Brian,

Here is a thread for you to see how to configure a mirror root disk.

http://us-support.external.hp.com/cki/bin/doc.pl/sid=0e27916e12a83bd838/screen=ckiDisplayDocument?docId=200000055534397

hope this helps.

thanks

[Uday_S_Ankolekar]

Hi,
Here is the script that creates a mirror boot disk on vg00 ( Thanks to forum and Santosh)
Identify the disks that has to be mirrored and then it's pretty simple
http://forums.itrc.hp.com/cm/components/FileAttachment/0,,0x60edc6af36b7d5118ff10090279cd0f9,00.txt

Goodluck,
-USA..

[G. Vrijhoeven]

Hi,

You should have the same on the mirror disk as the original :-).

How to create a mirror on vg00 look at this former forum issue:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,11866,0xb5fca14d9abcd4118fef0090279cd0f9,00.html

Hope this will help.

[James R. Ferguson]

Hi Brian:

Do this:

# pvcreate -B /dev/rdsk/cXtYdZ
# vgextend /dev/vg00 /dev/dsk/cXtYdZ
# mkboot /dev/rdsk/cXtYdZ
# mkboot -a "hpux -lq /stand/vmunix" /dev/rdsk/cXtYdZ
# for N in 1 2 3 4 5 6 7 8
> do
> lvextend -m 1 /dev/vg00/lvol{N} /dev/dsk/cXtYdZ
done

NOTE: that the logical volumes are mirrored IN ORDER (at least lvol1, lvol2 and lvol3 (/stand, primary swap & "/", respectively)).

NOTE: the low-quorum (lq) in the 'mkboot' command.

To verify all is well, check with:

# lvlnboot -v

Regards!

...JRF...

[Uday_S_Ankolekar]

Hi, agian...

Here is the Doc which explains in detail about mirror boot disk

http://us-support.external.hp.com/cki/bin/doc.pl/sid=7622263609dd0ba428/screen=ckiDisplayDocument?docId=200000055534397
Goodluck,
-USA..