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Why such SLOW write times with 3x X25-M RAID 0?

idata
Esteemed Contributor III

I've got three 80 GB X25-M SSDs in RAID 0 using the SATA RAID option on my motherboard (Intel ICH10R.) I flashed the drives to the latest firmware on 3-4-10. I am using Vista64 on an i7-920 system.

READ speed is fantastic; 4k WRITE speed is DISMAL - like 4 mb/sec - OR LESS- no matter what benchmark I use. Using AS SSD benchmark I get the following results- What am I doing wrong? Is there some setting I goofed up somehow? I spent $650 on these drives and my system is WAY SLOWER now than it was with a WD Raptor!

1 ACCEPTED SOLUTION

idata
Esteemed Contributor III

I suspect your partitions are not properly aligned to erase boundaries based on the screenshot of AS SSD (31k - BAD).

Use this calculator to figure out proper alignment for your disks and then repartition:

http://www.techpowerup.com/articles/other/157

View solution in original post

15 REPLIES 15

idata
Esteemed Contributor III

I just got 3 off them and tested with a nVidia drive controller on a 790i SLI ULTRA PWN and here it is:

Single Drive:

2X RAID0:

3X RAID0:

I think it could be better with a PCI-e RAID controller. What do you guys think?