Matthew Wakeling wrote:
In fact, it is recommended that two different types of drives are used. That way, if there's a mass failure of a whole batch of drives from one particular vendor, you don't lose all your data.
Don't think this is just paranoia, either. I've had it happen to me SEVERAL times - either a second drive fails before I can replace the first, or the second drive in a pair fails during rebuild onto the replacement. I use regular RAID scrubbing, so this isn't just a case of undetected media errors.
Nothing beats good backups. -- Craig Ringer -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
