We have an AMS2100 with 5 trays.
The first 3 trays contain SATA drives (almost not used), the last 2 trays contain SAS drives (with lots of IOPS).
We don't have great performance on the SAS drives.
After reading this document:
(especially the "Figure 2" about the AMS design), I am wondering if we would get better performance by placing the SAS in the first tray (controller tray).
Any idea about that ?
With this design, how many disks can deliver I/O at the same time ?