Ken Robertson wrote: > I would appreciate it if someone could help point me in the direction of how > to go about implementing this... > > I'd like to have a HA iSCSI target comprised of two lightweight servers (the > iSCSI targets, host A and host B) configured in failover which both are > connected to a DAS device, like the Dell MD3000, so they have share drives. > The DAS would likely be using raidz2. > > I've seen some past discussions that zfs does work in a clustered > environment, but only in an active/passive mode, where only one device > interacts with the DAS device at a time. This isn't a problem. It was > mentioned that this was done with "HA Storage+", however I haven't really > found any information on what HA Storage+ is. > > Secondly, I've seen that failover is possible with the iSCSI target when > using Sun Cluster, but haven't found much info on actually using or setting > it up in this way. Does it do multi-pathing, to where the end-client would > need to discover both paths, or does it work by each server sharing a virtual > IP, so when one fails, the other just picks up traffic on the IP? > > The other thing I'm curious about is if there would be any conflict between > the failover of the iSCSI target and the active/passive file storage? I'm > curious if there would potentially be a case where one hosts loses the > connection with host A and then connects to host B, but then both are > accessing the disks so it runs into issues. > > Has anyone tried to configure an HA iSCSI target in such a way before? Or > maybe some advice on the best route to go to do an HA iSCSI target > configuration? >
I haven't done any testing with iSCSI/SC; I don't have free hardware for the task. benr. _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
