[Info-vax] Request description of UFS for VMS person
Bob Eager
rde42 at spamcop.net
Wed Apr 29 09:23:55 EDT 2009
On Wed, 29 Apr 2009 12:58:56 UTC,
koehler at eisner.nospam.encompasserve.org (Bob Koehler) wrote:
> In article <176uZD2KcidF-pn2-totuOmdtgW5K at rikki.tavi.co.uk>, "Bob Eager" <rde42 at spamcop.net> writes:
> >
> > Nobody said VMS was broken! The VMS file system has many advantages. I
> > merely pointed out that ffs, at any rate, didn't seem to need a way to
> > recover from that situation.
>
> ffs never has to recover from a unreadable block? How does that one
> get data when a block becomes unreadable sometime after a successfull
> write (journals and RAID I understand, but I have no knowledge of
> what ffs is using)?
An unreadable block is simply that. No different to one that's been
cleared. Orphaned files that can be recovered.
SET FILE/NODIRECTORY is for when a block is readable, but corrupt in a
way that screws things up badly.
--
Bob Eager
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