Software RAID creation issue

[cyberygan]

I think I should report back. I first ran SeaTools to make sure all HDDs are good. They all passed tests. Then I messed with BIOS settings a bit, it was in default settings. I tried to enable the SATA ACHI mode, after the boot, LITE can't find any units, rescan didn't help. I disabled the SATA AHCI, still no units. Even after I reset the BIOS to default, no units.
I then tried to enable the Intel software RAID with Intel codebase (another option is Adaptec codebase), but I didn't congifure RAID in Intel RAID BIOS. After the boot, all units showed up in S/W RAID Setup page, and even resumed resyncing that I interrupted. But now at a faster speed, which is around 60000K/sec, showing time left 120min. Is this speed normal? But this whole thing still sounds strange. Is there a recommended SATA setting mode?

[To-M]

Others have reported with approx 72000K/sec (but very good drives, mem and CPU). Maybe others can supply some perf. values with SATA in "ENHANCED" modes.

[cyberygan]

We are happy with 60000K/s, it's a backup device on S/W RAID5, and we can get over 40MB/s average on NFS, which is impressive enough.
What puzzles us is that we have to enable Intel RAID on M/B, otherwise LITE sees no units.
Maybe it's just this M/B model. By the way, under M/B RAID mode, SATA enhanced mode is default.

[borsaid]

I'm very new and still demo'ing open-e but I stumbled upon this post and wanted to throw my S/W RAID5 build performance numbers into the ring.

SuperMicro Superserver 6015V-MT
1x Xeon 5120 Woodcrest (dual-core 1.8)
2GB DDR2 667mhz
Onboard SATA controller
4x 1TB Western Digital SATA

We're getting sustained resync (build) rates of over 80,000K/sec, building out that 4TB array in a little less than 3 hours.