Linux RAID5 question
I'm looking to build a Linux RAID5 media/file server. The MB I'm looking at using is a nforce2 IGP with 2xATA100 and 2xSATA150 ports. There are several ways I'm thinking of setting this up hard drive wise.
1. One small OS IDE disk, three large RAID5 data disks (2xSATA, 1xIDE)
2. One small OS IDE disk, four large RAID5 data disks (2x SATA, 2xIDE)...this requires that one of the IDE RAID5 disks share an IDE channel with the OS disk.
3. Four large RAID5 data/OS disks (2xSATA, 2x IDE)...basiclly making two partitions on every disk, one small (OS, swap, etc.) and one large (RAID5).
Since I have no experience with Linux SW RAID5 I don't know how each of these setups would work. I want to build the largest array I can for the least $, so options 2/3 look really good, but I'm worried about their performance.
Potential system specs:
Sempron 2500+ 333MHz FSB
1x512MB DDR (easy to add another stick if needed)
nforce2 IGP MB
Any help would be appreciated. Thanks.