Re: [Veritas-ha] load-balancing in VCS

2007-04-06 Thread Eric Hennessey
VCS used to do something like this with a version called VCS Traffic Director. We decided that it was better to let load balancers do what load balancers do, and put one in front of a VCS cluster running a parallel service group. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

Re: [Veritas-ha] load-balancing in VCS

2007-04-06 Thread Jim Senicka
No, you will need an IP per node and run a off the shelf IP load balancer out front. This is far more standard approach than pumping all traffic through one node and let it forward to all others in the cluster. A serious case of marketecture versus real feature on the Sun Cluster side [Sent f

[Veritas-ha] load-balancing in VCS

2007-04-06 Thread Rongsheng Fang
Hi, Does VCS has (or support) the equivalent functionality of Scalable Data Service in Sun Cluster, which can balance the load between cluster nodes? http://docs.sun.com/app/docs/doc/819-0579/6n30dc0nf?a=view I know that in VCS the service instances can start/run on different cluster nodes in

Re: [Veritas-ha] SCSI-3 reservation over VIO with Veritas Volumes onAIX ?

2007-04-06 Thread Cronin, John S
IBM does not support SCSI-3 persistent reservations with VIO servers, which is why I/O fencing is not supported. -- John Cronin 678-480-6266 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pavel A Tsvetkov Sent: Friday, April 06, 2007 7:04 AM

Re: [Veritas-ha] SCSI-3 reservation over VIO with Veritas Volumes onAIX ?

2007-04-06 Thread Jim Senicka
fencing = SCSI3 reserve. Not possible using VIO. _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Pavel A Tsvetkov Sent: Friday, April 06, 2007 7:04 AM To: veritas-ha@mailman.eng.auburn.edu Subject: [Veritas-ha] SCSI-3 reservation over VIO with Veritas Volumes onAIX ?

[Veritas-ha] SCSI-3 reservation over VIO with Veritas Volumes on AIX ?

2007-04-06 Thread Pavel A Tsvetkov
Hello all! It is stated in the Release Notes for VCS5.0 for AIX that fencing is not supported over VIO. What about SCSI-3 reservation? Is it possible for veritas disk group to make this kind of reservation if it gets the disks from VIO ( VIO in that case does not put any reservation of its own