I'm going to prepare NFS server for my small PS3-cluster. So, I've a question: if I use 4 SATAII ports for 250 GB disks in software RAID0, is the performance of CPU critical?
raid0 copies data around, but is not particularly cpu-intensive (raid5 is worse; r6 worser). but the network is just gigabit, right? which means that the bandwidth is only about 1 disk work anyway (a modern disk sustains > 130 MB/s on the outer half...)
Witch one should I use Core Duo/1 MB cache or Core2Duo/6 MB cache and how much of DDR2-800 RAM, 2 GB or 8 GB?
extra ram doesn't help a fileserver much except when you can read-cache effectively (either file contents or metadata.) I wouldn't sweat cache size, and probably not ram size either (unless your working set really is < 8GB.) _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
