Hi Chris, I saw your post (http://bioinformatics.org/pipermail/bioclusters/2002-April/000107.html) and noticed that you have been experiencing same kind of problems that we do. Did you find any reason/solution this problem? We are using fastt200 and qlogic2200 cards and performace is way worse that for example with internal scsi disks. Thanx at advance, Mr. Juri Ahokas Biomedicum Bioinformatics Unit, Helsinki, Finland System Administrator juri.ahokas@ktl.fi GSM: +358 40 5865 718