On Thu, May 23, 2013 at 5:33 AM, Warren Block <wbl...@wonkity.com> wrote:
> .. > One thing mentioned earlier is that ZFS wants lots of memory. 4G-8G > minimum, some might say as much as the server will hold. > > Not necessarily so - deduplication places great demands on memory, but that can be satisfied with dedicated cache devices (on SSD for performance and safety reasons). Without dedup, the requirements are more modest. Softupdates guarantee metadata consistency, but do nothing to address data integrity. ZFS has copy-on-write semantics (which solve a problem that even hardware RAID can't), and end-to-end checksums to detect/prevent data corruption (large drives will have uncorrectable bit errors over their lifetime). - M _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
