Windows 2000 Fileserving tweak

I know this is probably not the best place to ask this ... but I don't know any other possible relevant forums (maybe one could suggest some?)

Anyway, here goes the question:

I run a win2k server that acts as a fileserver on a LAN
Server config is:
AMD 1400+
1GB RAM
6 18GB U160 discs on a HW raid-5 config
(all of them in the same channel)
Intel PRO Optical Gigabit ethernet

The gigabit is connected to a 4 port gigabit switch, which feeds to 3 24port 2924XL with 20 workstations each, at 100mbit connections. 60 workstations in total.

I identify 2 bottlenecks:

a) although nic and raid controller are PCI 66/64 the motherboard is just a 33/32 one.

now I know that 33/32 PCI can handle upto 133MB/s
so assuming that I need ~10MB/s for lowend peripherals (cds, dvds, tape etc)
I am left with ~120MB/s to use for fileserving
half of it for the nic and half for the raid
which means that I should be able to deliver upto 60MB/s of traffic in the network.

b) having all discs in the same channel means that I cannot get more than 160MB/s but I don't care due to bottleneck described above.

now, the server's ability is far from 60MB/s , it is more likely close to 15-25MB/s while CPU usage doesn't exceed 20% at 25MB/s. Is there something that I can't think of? Any suggestions? Tweaks? etc?

thanks

 

 

 

 

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