On Mon, 23 May 2011, Rudi Ahlers wrote: *snip* > ZFS can use a SATA, SAS or SSD drive as cache drive to speed up common > reads & writes. I have seen some small improvements even when using a > cheaper grade SATA & SAS drive (as part of an experiment). The speed > improvement is quite a bit more evident on larger storage arrays. > > You could also use 2 cheaper MLC type SSD's, one in a "cold standy" > type setup - where it's already in mounted in the server and then you > simply tell ZFS to stop using SSD1, and start using SSD2 instead. Here's a follow on link from another posters link: http://www.tomsguide.com/us/ssd-value-performance,review-1455.html Apparently, SLC are supposed to last ~10x longer than MLC ? Keith ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------