[Veritas-ha] Coordinator disks

[Jim Senicka]

Fence won't start if even. 


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 -----Original Message-----
From: 	Joshua Fielden [mailto:Joshua_Fielden at symantec.com]
Sent:	Friday, April 11, 2008 04:30 PM US Mountain Standard Time
To:	Rongsheng Fang; veritas-ha at mailman.eng.auburn.edu
Subject:	Re: [Veritas-ha] Coordinator disks

3 *or more*, but they need to be an odd number, so minimize the amount of time they're even -- coordinator races are decided by holding a majority, so you have exposure while the total number of disks are even.

Cheers,

jf


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 -----Original Message-----
From: 	Rongsheng Fang [mailto:unixlifebox at gmail.com]
Sent:	Friday, April 11, 2008 04:09 PM US Mountain Standard Time
To:	veritas-ha at mailman.eng.auburn.edu
Subject:	[Veritas-ha] Coordinator disks

Hi,

Does anybody know how many coordinator disks the coordinator disk  
group can have? The VCS installation guide says 3, but doesn't say if  
more is supported.

We currently have 3 coordinator disks configured for a VCS 5.0 MP1  
cluster with IO fencing enabled. We will need to shutdown the array  
where the coordinator disks reside for temporarily (for a few days).  
So I am thinking if I can add another three coordinator disks from  
another array to the coordinator disk group. This way the coordinator  
disk group would still have 3 available coordinator disks while the  
original three are down. Would this work? Or what's the best way to  
deal with this situation?

Thanks,

Rongsheng
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