Subject: Re: SOFTDEPS safe for qmail?
To: None <firstname.lastname@example.org>
From: Peter Seebach <email@example.com>
Date: 06/15/2000 19:16:43
In message <200006152118.RAA26602@ghost.whirlpool.com>, Andrew Gillham writes:
>Under the Qmail FAQ there is question of reliability. It says not
>to use softupdates with qmail. Why is this a problem? I thought
>that that all filesystem operations were guaranteed to be safe by
>the "ordered" nature of soft updates?
"safe", yes, but there's no promise that a given write will have actually
taken place physically in the event of a crash, only that the set of writes
which has happened is expected to be consistent. qmail may be depending on
certain operations being really-synchronous.