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[Discuss] NAS: lots of bays vs. lots of boxes
- Subject: [Discuss] NAS: lots of bays vs. lots of boxes
- From: bogstad at pobox.com (Bill Bogstad)
- Date: Sat, 11 Jul 2015 13:48:59 -0400
- In-reply-to: <06CF7A12-1C25-4648-8394-1DCA9C3AD35F@pioneer.ci.net>
- References: <mailman.16397.1436555755.2348.discuss@blu.org> <06CF7A12-1C25-4648-8394-1DCA9C3AD35F@pioneer.ci.net>
On Fri, Jul 10, 2015 at 5:41 PM, Rich Braun <richb at pioneer.ci.net> wrote: > As drive capacities increased, transfer speed also did. (You have updated your motherboards to 6G SATA, right?) I posted here not too long ago that I'd suffered a triple-disk failure, which forced me to buy into the current crop of magnetic media rather than wait & see what the SSD market looks like in 2017. There is a big difference between the bus speed and the actual speed that data can be read from/written to a disk. Hard drive manufacturers love to talk about the bus speed; but for something like a RAID rebuild, the sustained transfer speed is what matters. And that hasn't been going up that much. I think even the best enterprise hard drives max out at less than 150Mbytes/second and most drives are well under 100. That's one way in which SSDs are better. They can actually make use of the faster bus speeds. Bill Bogstad
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