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Re: [Linux-cluster] A few GFS newbie questions: journals, etc



On Wed, Jun 08, 2005 at 04:50:38PM -0500, Nate Carlson wrote:
> >With lock_gulm, you can run with a single lock manager or redundant lock 
> >managers. In a redundant lock manager config, you generally have 3-5 
> >lock managers. One is elected the master lock manager and the others are 
> >slaves. If the master loses conenctivity to the other nodes, the 
> >majority of the remaining nodes will elect a new master.
> >
> >The other consideration when using lock_gulm with RLM is that lockserver 
> >nodes must be fenced from network and the storage, so simply fencing on 
> >a fibre switch port is not suffiencient. These means that you need 
> >network power switches to fence the lock servers.
> 
> Got'cha. I should have the boxes on Masterswitches, so should be fine 
> there. The only time a box would need to be fenced is when it loses 
> communication, right? (So I'd still be ok running virtual machines on the 
> lock servers.)

right. You should just need to come up with a fencing agent for the
virtual machines.

-- 
Michael Conrad Tadpol Tilstra
Do infants have as much fun in infancy as adults do in adultery?

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