On Thu Jul 06, 2006 at 02:00:05PM -0400, Dan Easley wrote:
> On 7/6/06, Pieter Palmers <pieterp@email-addr-hidden> wrote:
> >Paul Winkler wrote:
> >> On Thu, Jul 06, 2006 at 01:43:40PM +0200, Pieter Palmers wrote:
> >>> Modern harddisks use a lot of write caching on the controller to achieve
> >>> decent performance. So when power goes down when there is data in the
> >>> write cache, it is lost. The file system however 'thinks' that data has
> >>> been written correctly. This hence results in file system corruption.
>
> Thanks much for this whole thread. It's added substance to what I
> previously thought was just personal paranoia and suspicion.
>
> I've been under the impression it's cheaper to buy used UPS's and buy
> replacement batteries for them. Has anyone done this to good results?
im guessing 2 drives , synched nightly via rsync, or in a RAID configuration, is cheaper, and friendlier for the environment than huge/heavy UPS batteries. i guess i'd invest in that if the electricity infrastructure in my area was particularly bad. or in combination with daytime solar replenishing to run completely off-grid.
soudns like overkill as a hedge against drive failure though. drives will fail.
Received on Fri Jul 7 00:15:03 2006
This archive was generated by hypermail 2.1.8 : Fri Jul 07 2006 - 00:15:03 EEST