vmware, Hyper-v cluster anyone?

[cits-issg@brocku.ca]

We are running multiple four node Hyper-V clusters (QLogic Fiber Channel) against a single DSS V6 storage box. It's holding up very nicely. The storage box has 22 600GB 15K SAS drives, and an Adaptec controller with an Adaptec MaxIQ 64Gb SSD cache.
Performance and reliability is excellent.
We moved to DSS from a dedicated EMC CX3-10 SAN.. It was four times as expensive and could not keep up.
DSS now supports multi path IO on Qlogic HBA and it's pretty bullet proof (so far).

[pfeifferl]

We also use two DSS v6 up40 as iSCSI SAN for our Hyper-V R2 cluster (specs see signature).

Performance and reliability are good, but we have two issues:

1. DSS failover breaks Hyper-V VMs on cluster (cluster disks going offline/online and VMs are bluescreening).
2. After updating to up50 CSV goes to redirected IO because of issues with SCSI-3 persistent reservation. We did downgrade to up40.

We opened support tickets and are waiting for response ...