Re: [Veritas-ha] Coordinator disks
Jim, Thank you very much for your reply! Rongsheng On Apr 11, 2008, at 7:12 PM, Jim Senicka wrote: No. A. It must be an odd number. (otherwise no majority possible) B. You cannot add online. You will need to bounce the cluster (or at least the fence driver) to move to the new array Sent from my Nokia E62 handheld by goodlink. -Original Message- From: Rongsheng Fang [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 04:09 PM US Mountain Standard Time To: veritas-ha@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 ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha
Re: [Veritas-ha] Coordinator disks
No. A. It must be an odd number. (otherwise no majority possible) B. You cannot add online. You will need to bounce the cluster (or at least the fence driver) to move to the new array Sent from my Nokia E62 handheld by goodlink. -Original Message- From: Rongsheng Fang [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 04:09 PM US Mountain Standard Time To: veritas-ha@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 ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha
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 Sent by GoodLink (www.good.com) -Original Message- From: Rongsheng Fang [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 04:09 PM US Mountain Standard Time To: veritas-ha@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 ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha
Re: [Veritas-ha] Coordinator disks
Fence won't start if even. Sent from my Nokia E62 handheld by goodlink. -Original Message- From: Joshua Fielden [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 04:30 PM US Mountain Standard Time To: Rongsheng Fang; veritas-ha@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 Sent by GoodLink (www.good.com) -Original Message- From: Rongsheng Fang [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 04:09 PM US Mountain Standard Time To: veritas-ha@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 ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha ___ Veritas-ha maillist - Veritas-ha@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-ha
