The Apple Xserve RAID now ships with 750GB drive modules, which increases the maximum capacity of each RAID unit now to 10.5TB. While that’s certainly great news, there’s one other part of the update that might not be as pleasing to fans of the fibre channel storage devices.
As part of the update, Apple also released Xserve RAID Admin Tools 1.5.1, which includes a new RAID Admin utility and the new firmware needed by current units to recognize the newer drive modules. The surprising change is in RAID Admin, which no longer has a LUN Masking configuration option.
I spoke with Apple Enterprise support and heard that LUN Masking is no longer a feature of the Xserve RAID, but that any LUN masks already present would be preserved even after using the new RAID Admin utility. However, I didn’t confirm if this is still the case once new firmware is applied.
The Apple support tech I spoke with couldn’t provide a reason for the change, but confirmed that the remaining option for assigning storage to hosts, zoning on the fibre channel switch, is what Apple now recommends.