Hello eric, Friday, August 11, 2006, 3:04:38 AM, you wrote:
ek> Leon Koll wrote: >> <...> >> >>> So having 4 pools isn't a recommended config - i would destroy those 4 >>> pools and just create 1 RAID-0 pool: >>> #zpool create sfsrocks c4t001738010140000Bd0 c4t001738010140000Cd0 >>> c4t001738010140001Cd0 c4t0017380101400012d0 >>> >>> each of those devices is a 64GB lun, right? >> >> >> I did it - created one pool, 4*64GB size, and running the benchmark now. >> I'll update you on results, but one pool is definitely not what I need. >> My target is - SunCluster with HA ZFS where I need 2 or 4 pools per node. >> ek> Why do you need 2 or 4 pools per node? ek> If you're doing HA-ZFS (which is SunCluster 3.2 - only available in beta ek> right now), then you should divide your storage up to the number of ek> *active* pools. So say you have 2 nodes and 4 luns (each lun being ek> 64GB), and only need one active node - then you can create one pool of ek> all 4 luns, and attach the 4 luns to both nodes. ek> The way HA-ZFS basically works is that when the "active" node fails, it ek> does a 'zpool export', and the takeover node does a 'zpool import'. So ek> both nodes are using the same storage, but they cannot use the same ek> storage at the same time, see: ek> http://www.opensolaris.org/jive/thread.jspa?messageID=49617 ek> If however, you have 2 nodes, 4 luns, and wish both nodes to be active, ek> then you can divy up the storage into two pools. So each node has one ek> active pool of 2 luns. All 4 luns are doubly attached to both nodes, ek> and when one node fails, the takeover node then has 2 active pools. ek> So how many nodes do you have? and how many do you wish to be "active" ek> at a time? ek> And what was your configuration for VxFS and SVM/UFS? With 2-node NFS clusters normally I have one active one standby. However with many disks I always configure it that way so I have a possibility to split workload (pools,filesystems,...). I do it in that way I create two cluster groups each with its own IP, disks, etc. That way is I do have a performance problem related to a server performance and not an array itself I can quickly and temporarily solve it. So I think it is good to create at least two ZFS pools, two SC groups and normally set primary node for those two groups to the same node. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
