Thanks, this is very useful to know about the 730. When you say 'tested it with plug-pulls', you were using diskchecker.pl, right? Graeme. On 07 Jul 2015, at 14:39, Karl Denninger <karl@xxxxxxxxxxxxx> wrote: > > Incidentally while there are people who have questioned the 730 series power loss protection I've tested it with plug-pulls and in addition it watchdogs its internal power loss capacitors -- from the smartctl -a display of one of them on an in-service machine here: > > 175 Power_Loss_Cap_Test 0x0033 100 100 010 Pre-fail Always - 643 (4 6868) -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance