You are correct that the iSCSI-R3 does not have this, sorry for the confusion to many of us are using the DSS product and get crossed on what is in the Ext. tools for booth.

If this system had only 1 Volume Group (VG00) and you have tried the option to "Restore LVM..." and was not able to see the VG00 then have you done a RAID verify for each of the RAID 6’s that reside on the RAID controller. Also any errors from the RAID controller logs?