Can partition alignment help performance on a DroboElite? Is it even possible?
In the past, when I would create partitions on a RAID volume, I would create partition where the starting offset was a multiple of the stripe unit size of the array. More recently, I simply use a 2K sectors (1MB) offset. But, in those RAID arrays, I knew the array’s stripe unit size and it never changed during the life of the array. If the misalignment resulted in data being written
The offset used when the Drobo Dashboard created my 2TB NTFS partition is 32KB. But, I don’t know if it matters with the Drobo’s “BeyondRAID”. Since I can’t control the RAID stripe unit size and the fact that it could change on-the-fly if I change the physical drive configuration, using a multiple of the stripe unit size seems to be a waste. But, could a 1MB offset work regardless of drive configuration (number and size of each drive in the 8 bays)?
I’m currently getting pretty reasonable performance in mb/sec and IOPS especially considering the cost and sharing bandwidth with the single NIC. But, if I can eek out a little more, why not do it?