Gregory Stark wrote: >> From the DELL site it seems this `PERC 5/i' on board controller >> (assuming that's what you have) doesn't even have a BBU. If you don't >> plan to post here in a few weeks again about data corruption, go out and >> shop a serious controller. > > This is a bit of a strange comment. A BBU will improve performance but > Postgres doesn't require one to guarantee data integrity. > > If your drives have write caching disabled (ie write-through) and your > controller does write-through caching and you leave fsync=on and > full_page_writes=on which is the default then you shouldn't have any data > integrity issues.
That was my point, controllers without BBU usually leave drive caches turned on, as with drive caches off performance would be unbearable bad. -- Best regards, Hannes Dorbath ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
