Can Open-E pool multiple storage devices into a single logical volume ?
The only way to do this is to create a Target from another DSS or iSCSI-R3 then use the built in iSCSI initiator from the DSS and add them to the Volume Manager to create a single Volume Group.
So is it possible to make a SAN array cluster ?
We provide an iSCSI Auto Failover feature with DSS only that only works with 2 x DSS server with Active / Passive function for multible iSCSI Logical Volumes. See link below for more details on how this works and setup procedures.
2008 - Open-E Volume Replication with Failover over a LAN, December
If so would this be done by setting a DSS as master and having the iSCSI R3 modules as slaves?
No, only DSS has the iSCSI Auto Failover feature.
And last question in the failover setup is the open-e setup also load balanced or is one of the devices just a hotspare?
In the Active / Passive setup the Source is written first then replicated to the Destination server and is not load balanced per say. If the Source server fails the Destination will promote itself to Active mode.
Please download the DSS Demo-CD to test with your environment. Link below allows you to download our 60 day evaluation of DSS.
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