topic Re: redhat cluster without fence device in Operating System - Linux

redhat cluster without fence device

Khairy — Thu, 10 Sep 2009 11:52:53 GMT

hi all,

i have installed redhat el 5.1 on 2 x dl380 g5 with a shared storage (msa2012sa).

I have completed system configuration and multipath config. I even configured one lun to be use as quorum device.

i execute the following command to activate the device a quorum device.
mkqdisk /dev/mapper/mpath3p1

but when i start configure cluster, it ask about program for quorum device heuristic?

and then it ask to configure fence device. Can i skip this if i have quorom device. Configuring ILO for fencing device is not an option as we dont have enough network port allocate for it for the ILO.

Can this config works?

Re: redhat cluster without fence device

loco_vikide — Fri, 11 Sep 2009 12:22:56 GMT

Hello,

Technically it does work. However, fencing is strongly recommended for data integrity. If ILO-fencing is not an option then you should look into imnplementing power fencing or/and SCSI reservation, etc ...

Cheers

Re: redhat cluster without fence device

skt_skt — Sat, 12 Sep 2009 13:32:32 GMT

"mkqdisk -c /dev/devicename -l quorumlablename"

is the syntax i remember;

Re: redhat cluster without fence device

Khairy — Sun, 13 Sep 2009 07:50:12 GMT

thanks all. I will proceed with iLo config for primary fencing and quorum as 2nd level of fencing.