Jack Coats <[email protected]> writes: > There is the opportunity to make your million! > > Design a bullet proof raid card that can flush battery backed raid to a > flash (SD Card?) once power is turned off to the card. > Then the RAM can be let to die as the battery dies... If the battery doesn't > die before power comes back, no need to read > from the Flash.
Eh, if I was going to depend on something mostly untested, I'd use something like Facebook's FlashCache[1] - personally, I feel rather uneasy about trusting my customer's data to it, mostly because of the relitive cost difference involved in prgmr.com losing a server worth of customer data vs. facebook loosing a server worth of customer data. Now, it might be a good idea to work on anyhow; right now my disk is getting hammered so hard that I can't relistically take backups without seriously impacting customer performance. Any solution that improves things to the point where nightly backups are practical could obviously be slightly less reliable. (either that, or I start telling customers what filesystems they can use and mounting their disks and doing file-based backups. but I really do like treating customer disk as a block device; one I never have to look at.) Hell, if the LVM guys would finish async snapshots-over-the-network zfs style, that'd do it for me by itself. [1]https://github.com/facebook/flashcache/blob/master/doc/flashcache-sa-guide.txt -- Luke S. Crawford http://prgmr.com/xen/ - Hosting for the technically adept http://nostarch.com/xen.htm - We don't assume you are stupid. _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
