On 6/17/06, Neil A. Wilson <[EMAIL PROTECTED]> wrote:
Darren Reed wrote: > Solid state disk often has a higher failure rate than normal disk and a > limited write cycle. Hence it is often desirable to try and redesign the > filesystem to do fewer writes when it is on (for example) compact flash, > so moving "hot blocks" to fast storage can have consequences.
I mentioned solid state (assuming DRAM-based) and 750 GB drives as the two ends of the spectrum available. Most people will find their extremes that are each closer to the middle of the spectrum. Possibly a multi-tier approach including 73 GB FC, 300 GB FC, and 500 GB SATA would be more likely in most shops.
Solid state disks like this are expensive (both of the 32GB disks that I tested list at around $60K), so controlling costs is important.
If you remove "enterprise" from the solid state disk equation, consider this at $150 + the cost of 4 1 GB DDR DIMMs. I suppose you could mirror across a pair of them and still have a pretty fast small 4GB of space for less than $1k. http://www.anandtech.com/storage/showdoc.aspx?i=2480 FWIW, google gives plenty of hits for "solid state disk terabyte". Mike -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
