My post is a caution to test the performance, and get your own results. http://www.storagesearch.com/ssd.html
Please see the entry for October 12th. The result page you linked too, shows that you can use an arbitrarily high number of threads, spread evenly across a large number of SAS channels, and get the results to scale. This is Sun's ideal conditions designed to sell the F5100. Now, real world performance is unimpressive. The results need to be compared to other Flash systems, not to traditional hard drives. Most flash, including Sun's trumps traditional hard drives. I'm issuing a caution because I think its a benefit. Look at Sun's numbers for latency http://www.sun.com/storage/disk_systems/sss/f5100/specs.xml .41ms Fast compared to hard drives, but quite slow compared to competing SSD. I've done testing with the X25-E (Intel 32GB 2.5" SATA form factor drives). I'm cautious about the F20, precisely because I would think Sun would be anxious to prove its faster than this competitor. I have not said its slower, only that its unconfirmed, and so my recommendation is to confirm the performance of this card, do not assume. Good advice. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
