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vmunix -lq entry on AUTO file

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SUDHAKAR_18
Trusted Contributor

vmunix -lq entry on AUTO file

Hi All,

I have a small doubt while creating mirror (vg00) on Itanium servers.

Is it nessessary to put "vmunix -lq" AUTO file entry on both Primary & Secondary disks ?

4 REPLIES
R.K. #
Honored Contributor

Re: vmunix -lq entry on AUTO file

No..

For primary disk entry should be "vmunix".
For alternate disk entry shold be "vmunix -lq"

This is because if primary disk fails, system can be booted from alternate disk as it will have autofile entry of "vmunix -lq", thus it will not look for quorum and will boot.

Hope this clears things..
Don't fix that what ain't broke
Kapil Jha
Honored Contributor

Re: vmunix -lq entry on AUTO file

Its actually not necessary but you should, because it says to boot the server in low quorum mode.

If you have 2 mirror root disk to have quorum you need to have minimum 2 disks, if one disk go down your system would boot with one vote (one disk in hand) ie low quorum.

Hope this owuld help.

BR,
Kapil+
I am in this small bowl, I wane see the real world......
Torsten.
Acclaimed Contributor
Solution

Re: vmunix -lq entry on AUTO file

>>
For primary disk entry should be "vmunix".
For alternate disk entry shold be "vmunix -lq"



What if the secondary fails???


By configuring "-lq" you enable the server to start itself, without you need to manually start the server in quorum mode. It depends totally on you.


If you want to be "alerted" by a non starting server, don't configure "-lq" - if you want to enable the server to start itself even with a bad disk, include "-lq".

Hope this helps!
Regards
Torsten.

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VK2COT
Honored Contributor

Re: vmunix -lq entry on AUTO file

Hello,

When I design or build HP-UX servers that use
software RAID-1 for boot disk, I make sure
to set "-lq" flag on both disks.

LVM does not differ primary and secondary disks. They are both equal, so "-lq" matters
on both disks (unless you like to be
called at midnight if one boot disk is lost).

Cheers,

VK2COT
VK2COT - Dusan Baljevic