Jim C. Nasby wrote: > Speaking of 'disks', what's your exact layout? Do you have a 5 drive > raid5 for the OS and the database, 1 drive for swap and 1 drive for > pg_xlog? On a Sil SATA 3114 controller: /dev/sda OS + Swap /dev/sdb /var with pg_xlog On the 3Ware 9500S-8, 5 disk array: /dev/sdc with the database (and very safe, my MP3 collection ;-)) As I wrote in one of my posts to Michael, I suspect that the card is not handling the amount of write operations as well as I expected. I wonder if anyone else sees the same characteristics with this kind of card. Groeten, Joost Kraaijeveld Askesis B.V. Molukkenstraat 14 6524NB Nijmegen tel: 024-3888063 / 06-51855277 fax: 024-3608416 e-mail: J.Kraaijeveld@xxxxxxxxxx web: www.askesis.nl