"I did not find the article you reference but did find some descriptions of SSD memory having lifetimes of order 100,000 to 1,000,000 writes which many claimed implied a lifetime of order 10 years."
It's probably fine for most people who aren't running data-intensive apps. With swap to disk, a user pretty much has to stop what they are doing when they run out of RAM. With flash, a machine that just didn't have enough RAM could be swapping all the time, and it would seem tolerably responsive. On Linux one can look at the swap device in /proc/diskstats and compare the swap device's counts with the update and get an estimate of writes per unit time. For a server or workstation that might not be a bad estimate provided the machine gets lots of workloads and is up for extended amounts of time. "I was really interested in the hybrid SSD/HD systems and found even less about them." There seems to be a lot of variance in the results for Linux kernel (software) solutions. I'm just getting started with bcache. The popular Linux distributions don't yet have the right kernels to make this experimentation convenient, but hopefully in the next month or so. Marcus -------------------------------------------------------------------- myhosting.com - Premium Microsoft® Windows® and Linux web and application hosting - http://link.myhosting.com/myhosting ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com
