JR A.

Solution 1 will probably work but it's really complicated.. Save yourself some headaches and go with Solution 2. Go with Solution #2 all day long. It's less complicated, simple.. My OCD would put drve a parity, drive b parity and drive c data.. But that's just me :)

Edit: duplicate

I think you may be onto something! Yes, write cache is disabled on all disks (including parity)! I will test and report back.

I think you may be onto something! Yes, write cache is disabled on all disks (including parity)! I will test and report back.

Sorry missed that part.. Case: Supermicro SuperChassis 847BE1C4-R1K23LPB Backplanes: BPN-SAS3-846EL1 & BPN-SAS3-826EL1 HBA: Supermicro AOC-S3008L-L8e (basicaly an LSI-9300-8i, flashed with IT firmware) Each backplane connected via single channel to the HBA (one backplane connected to one channel of the HBA, the other backplane connected to the second channel). Single channel vs dual channel per backplane will reduce by about 20-30% the total throughput, but the max throughput for this card is theoretical...

Ran hddparm -tT on each of the disks and they each report 230-300MB/s reads, so doubt it's a bad port/cable/socket. My snapraid uses about 10GB of RAM with the 13 disk configuration using default hash/block size.

Ran hddparm -tT on each of the disks and they each report 230-300MB/s reads, so doubt it's a bad port/cable/socket. My snapraid uses about 10GB of RAM with the 13 disk configuration using default hash/block size.

Don't think it's a swap issue, swap is turned off (first thing I did was turn it off) Memory shows about 9.9Gib free during the sync process.