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Possible to boot cluster w/shared disks in single user mode?

 
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Gino Castoldi_2
Honored Contributor

Possible to boot cluster w/shared disks in single user mode?

Hi,

HPUX 11.11 MC/SG 11.15 OVO 7.21 Oracle 8.1.7.4

We have a two node cluster that runs OVO.
The shared volume contains a Oracle database
and the OVO application. The cluster controls
the OVO package which includes starting and stopping the Oracle database.

My question is: can we boot the server into single user mode with the shared volume mounted? The reason is that I want to perform
Ignite-UX backups that includes the other volume group (vgshare) besides vg00.

10 points to any good answer.
TIA,Gino

2 REPLIES 2
RAC_1
Honored Contributor
Solution

Re: Possible to boot cluster w/shared disks in single user mode?

Instead of going to single user mode for that, you should be stopping the applications/programs accessing vgshare and go ahead with Ignite. They will be stopped anyway when you go into single user mode.

Also, you should be able to do this in single user mode. You will have to start networking in single user mode, start cluster and any other programs/applications you may require to get cluster and networking running. Once this is taken care of, you should be fine.

But I would go for option one.

Anil
There is no substitute to HARDWORK
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Ashwani Kashyap
Honored Contributor

Re: Possible to boot cluster w/shared disks in single user mode?

Usually the cluster runs in run level 3 with networking up . But if you just want to mount your shared vg's in single uses mode , then you can do something like this . Mount your /usr , /var, /opt directories in single user mode . Take your shared VG's out of the cluster by doing vgchange -c n vgname .

Then activate the VG , vgchange -a y vgname , then mount your LV's .