[Info-vax] FREESPADRIFT

[Bob Koehler]

In article <njkbn6$tuj$1 at news.kjsl.com>, helbig at asclothestro.multivax.de (Phillip Helbig (undress to reply)) writes:
> What causes the free-space count to become wrong?  Since VMS obviously 
> knows about it (otherwise /REPAIR couldn't fix it), why isn't it always 
> correct?

   It is normally cached, with more blocks marked on the disk as in use than
   are actually in use, so allocation doesn't need to update the on-disk
   value.  During proper dismount, the value on the disk is corrected.
   Improper dismount will leave it stale.

> Is there any reason not to run ANA/DISK/REPAIR, say, once per day?

   Overkill.  See also "set volum/rebuild".