On 24 Srpen 2011, 20:48, gnuoytr@xxxxxxx wrote: > It's worth knowing exactly what that means. Turns out that NAND quality > is price specific. There's gooduns and baduns. Is this a failure in the > controller(s) or the NAND? Why is that important? It's simply a failure of electronics and it has nothing to do with the wear limits. It simply fails without prior warning from the SMART. > Also, given that PG is *nix centric and support for TRIM is win centric, > having that makes a big difference in performance. Windows specific? What do you mean? TRIM is a low-level way to tell the drive 'this block is empty and may be used for something else' - it's just another command sent to the drive. It has to be supported by the filesystem, though (e.g. ext4/btrfs support it). Tomas -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
