tag:blogger.com,1999:blog-4503292949532760618.post5380288821337169623..comments2024-03-28T13:39:27.601-07:00Comments on DSHR's Blog: More on de-duplicating flash controllersDavid.http://www.blogger.com/profile/14498131502038331594noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-4503292949532760618.post-52051351971765646542011-07-05T09:03:30.332-07:002011-07-05T09:03:30.332-07:00According to Robin Harris SandForce claims a UBER ...According to Robin Harris <a href="http://storagemojo.com/2011/06/27/de-dup-too-much-of-good-thing/" rel="nofollow">SandForce claims a UBER of 10e-29</a>. That is a remarkable number. To see how remarkable, consider a black box containing an exabyte, approximately 10e19 bits, that has the claimed UBER of 10e-29. On average, you would get an error about once in every 10e(29-19=10) times you read the box's contents.<br /><br />Suppose the box's read bandwidth was 10Gb or 10e10bit/s. It would take 10e(19-10=9)s to read the contents. So on average you would wait about 10e(9+10=19)s before seeing an error. This is a long time. The current estimate of the age of the universe is about 4.4*10e17s, so it is roughly 23 times the age of the universe.<br /><br />Remarkable claims need remarkable evidence. It would be interesting to see the basis for SandForce's claim.David.https://www.blogger.com/profile/14498131502038331594noreply@blogger.com