Fasttrak S150 SX4-M very slow in writing

golf-spiel_at_gmx.net
Date: 06/14/05


Date: 13 Jun 2005 16:57:50 -0700

Hallo

I have installed a S150 SX4 Fasttrak with RAID 5 (3 Harddisks 160 GB).
After I make insmod FastTrak.o everything works but the writing speed
(dd if=/dev/zero of=test bs=1M Count=500 -> needs 170 seconds)
is very slow about 3-4 MB/s. Reading is very fast 50 MB/s.

I have a AMD 2600 with ASUS A7N8X Board.

What for writing speed I should expect ?
Do anyone have solve this problem ?

cat /proc/scsi/FastTrak/1
Promise FastTrak S150 SX4 Linux Driver Version 1.01.00.57 (4.Aug.2004)
Adapter1 - FastTrak S150 SX4
Adapter2 - - (unknown)
Array - Array[1] : 2+1 Raid 5 (OK-Gigabyte Boundary)
Drive -
  1 : ST IDE1/Master 156290MB IRQ(19) UDMA6 - Array[1]
  3 : ST IDE2/Master 156290MB IRQ(19) UDMA6 - Array[1]
  5 : ST IDE3/Master 156290MB IRQ(19) UDMA6 - Array[1]

thanks
Michael Haas



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