I have never used RDM. It is more a home option on hardware without pass-through capability.
But I have not heard of horrible problems on Solaris with full disk RDM and I would accept it as a usable option.
What I would check is if the pool is importable/exportable to a barebone config and if smartmontools are working (should be the case). more:
http://forums.servethehome.com/sola...na-napp/2560-not-able-enable-passthrough.html
Thanks. I was able to get RDM working for one drive but I am however, concerned that I am not going to be able to use all of the space on my disks using raidz. I have a partition on a SSD for L2ARC, 2x1TB drives, 1x1.5TB drive, and a 4 TB drive. I think the best that a raidz can do is take 1 TB from the 1.5 and 4 TB disks, leaving 0.5 TB and 3 TB unallocated. Is this correct? In that case, could I make another zpool, perhaps in striped mode for the "left-over" parts?
I was confused about using nappit; I could not figure out how to enable iSCSI target. Anybody have a guide out there on how to setup napp-it for iSCSI and for ESXi to see the space as storage?
I also tried windows server 2012 r2. It's more user friendly but I was able to confirm reports of horrible performance in storage spaces. I got like 20mb/s read/writes using ATTO on a raid volume in storage spaces.
But I suspect the 2x1 TB drives may be going bad which is why I'm seeing horrible performance. How can I tell for sure?
-B