In a PCIe gen 2 4x slot in my Mac Pro 4,1 (flashed as 5,1) I have the pictured OWC SSD which uses on-board Marvell RAID 0 Hardware and two OWC 60 GB SSD “blades“ to present a very fast 60 GB to the Mac.
The original owner of this Mac joined this with a 1 TB 7200 rpm SATA 3G to produce a pretty impressive roll-your-own Fusion Drive (jhfs+ file system).
Since both the SSD and rotating drive are aging, and newer/faster tech is available, I’d like to upgrade somehow without losing capacity or performance.
I recently tried a OWC Accelsior S with a 1 TB Electra 6G SSD installed in a 16x slot and was unhappy to find that it underperformed the Fusion Drive I described, using several benchmarks.
So I’m looking for alternatives that will be at least as fast as the existing Fusion combo, with more than 1 TB capacity, that won’t cost me more than the $200 I shelled out to OWC. (Their own tech rep couldn’t find anything in their current product line that he thought would even equal these requirements, without costing a great deal more.)
I can provide some benchmark figures from ATTO or other benchmarks, if anyone wants to see them.
(I'd probably settle for either replacing the two 60 GB blades with something a lot larger. But OWC says these blades, no longer available from them, used a proprietary design, so I'd have to buy them used, or replace the whole assembly with a larger-capacity SSD that would be just as fast.)
The original owner of this Mac joined this with a 1 TB 7200 rpm SATA 3G to produce a pretty impressive roll-your-own Fusion Drive (jhfs+ file system).
Since both the SSD and rotating drive are aging, and newer/faster tech is available, I’d like to upgrade somehow without losing capacity or performance.
I recently tried a OWC Accelsior S with a 1 TB Electra 6G SSD installed in a 16x slot and was unhappy to find that it underperformed the Fusion Drive I described, using several benchmarks.
So I’m looking for alternatives that will be at least as fast as the existing Fusion combo, with more than 1 TB capacity, that won’t cost me more than the $200 I shelled out to OWC. (Their own tech rep couldn’t find anything in their current product line that he thought would even equal these requirements, without costing a great deal more.)
I can provide some benchmark figures from ATTO or other benchmarks, if anyone wants to see them.
(I'd probably settle for either replacing the two 60 GB blades with something a lot larger. But OWC says these blades, no longer available from them, used a proprietary design, so I'd have to buy them used, or replace the whole assembly with a larger-capacity SSD that would be just as fast.)
