gjournal and Softupdates

Oliver Fromme olli at lurza.secnetix.de
Wed Sep 13 10:15:40 PDT 2006


Teufel wrote:
 > so when the crash occur exactly when BIO_FLUSH is sent or while the 
 > cache is flushing, there is still no corruption possbile?

A small additional note ...  If there's a _hardware_ crash
(e.g. power outage) which causes a track write of the HDD
to be interrupted, you will get corruption.  There is *no*
file system that protects you from such damage, except
probably Sun's ZFS in a mirror configuration (because of
its COW, checksumming and self-healing features).

Best regards
   Oliver

-- 
Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
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