> a 320mb/s controller can have about 10 15krpm disks each having > sustained 30mbps bandwidth. am i right? >
As Orly said, it would be a very rare case indeed that you will be able to saturate the bandwidth of your PCI bus. But having a striped array of disks will definitely improve your performance more than a single disk. > > how about the 100mbps NIC-to-NIC network between a database server and > an application server? has anyone seen that as the bottleneck? That would be your next bottleneck if you need to transfer all the data you selected, and it is voluminous. However, database intensive applications, churn about your disks for quite a while and usually give a short answer, so network lag won't matter that much. -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
