Testing – ATTO

The ATTO benchmark gives a second opinion to SiSoft Sandra on reading/writing performance.

RAID 0

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NVIDIA (Left) – SiL3132 (Center) – Revo64 (Right)

As the quantity of data read/written increases, the Revo64 sustains peak write performance up to the maximum 1024MB whereas the SiL3114 and NVIDIA controllers peak at 128 MB and then decline. At reading/writing 64MB, the Revo64 matches the performance of the other controllers and then surpasses them by maintaining peak performance up to the last 1024MB mark.

RAID 1

XFX Revo64 RAID 3 Controller Review - Storage 47 XFX Revo64 RAID 3 Controller Review - Storage 48 XFX Revo64 RAID 3 Controller Review - Storage 49
NVIDIA (Left) – SiL3132 (Center) – Revo64 (Right)

All three RAID controllers show similar write performance which isn’t unexpected for RAID 1, since RAID 1 will perform write operations as quickly as a single disk.

The Revo64 has some more surprises for us. At 16MB read/write, the Revo controller explodes in performance nearly doubling its results at the previous 8MB mark. Read performance continues to climb to double that of the other controllers. This leads me to believe that read behaviour on the other controllers is not being executed in a striped manner as it should.

RAID 3 and RAID 5

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NVIDIA (Left) –  Revo64 (Right)

In RAID 3, the Revo64 leaves NVIDIA’s RAID 5 in its wake with higher read and write transfer rates, and more consistent results. RAID 5 on NVIDIA hardware looks to have a whole host of issues and this test just reinforces that. The extra HyperTransport bandwidth does little to help NVIDIA in this test as the implementation appears to be poor and the Revo64 easily beats it at larger transfers.

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