Hello Jochen, Sunday, December 10, 2006, 10:51:57 AM, you wrote:
JMK> James, >> Just a thought. >> >> have you thought about giving thumper x4500's a trial >> for this work >> load? Oracle would seem to be IO limited in the end >> so 4 cores may be >> enough to keep oracle happy when linked with upto >> 2GB/s disk IO speed. JMK> === JMK> Actually yes, however I've doubts in regard to scalability JMK> of cpu power. I'd imagine that a RaidZ setup will increase JMK> cpu usage of zfs, so Mirroring will be the way to go. JMK> I've also browsed some info on greenplum and other appliance JMK> vendors. However none are listed as strategic products for our JMK> company (forcing a lengthy assessment process), support/consulting JMK> in Germany is usually non-existent and a port of our current setup JMK> is difficult at best. JMK> I've asked Robert Milkowski (milek.blogspot.com) if he can provide JMK> me with some cpu figures from his throughput benchmarks. It's not that bad with CPU usage. For example with RAID-Z2 while doing scrub I get something like 800MB/s read from disks (550-600MB/s from zpool iostat perspective) and all four cores are mostly consumed - I get something like 10% idle on each cpu. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
