Hello!
I posted a couple of weeks ago about poor Raid 5 performance over the network.

Machines + Config
Server:
Core 2 Duo
2Gb Ram
Asus P5B Plus
4x Seagate 500Gb disks on Intel ICH8R in Raid 5
1x Sysdisk

After further investigations I´ve come to this comclution.

It´s the internal writing that is slow.
Files > 1Gb are not fully cached and are really slow after the cache is full. Down to about 1Mb/s
Files < 1Gb are cached and appears to be moved withing seconds.
The Hardware monitor in Windows 2003 shows that pages/sec are going through the roof a long time after files have been moved.


Questions:
I know software raid is **** and blablabla but I´m a student with limited amount of money and I didn´t expect it to perform like this.
I mean, I was expecting "normal" transfers at about maby ½ the speed of a hardware card or maby abit lower. But not 1Mb/s.

Where and how does this caching function work. After testing, I´ve concluded that the limit is on 1Gb. Can I increase it or even do something about it?

Does this appear to be a problem or is it working as intended?

BEst regards //MIkael