| In a 16-drive Fusion chassis, Sonnet formats, tests, and builds a RAID at the factory, then removes and numbers (as of Nov 2012) the drives for safe shipping. It is important to install the drives in the numbered order left-to-right. If you don't do this, the performance will suffer because the drive sequence gets scrambled through the SAS expanders to the RAID engine.
If you used the original RAID group built by Sonnet which did not have numbered drives or which numbered drives were not installed in sequential order, then back up your data, delete the RAID group and build a new RAID and your performance will improve.
This note does not apply to the DX800RAID. |