2.11  Voyager invalidates my hard drive!  Why?

   If  a  crash  occurs  while  Voyager  is  writing to the disk-cache, the
partition  may  be  corrupted,  causing an invalidation.  Besides examining
questions 2.2 and 2.3 to alieviate the crashing problems, there are certain
precautions you can take to avoid invalidations:

1)  Redirect  Voyager's  cache to RAM:  or a recoverable drive such as RAD:
or  SD0:.   This  way, if the machine crashes, you will not lose the cache.
You *will* lose the cache if the machine is switched off or you store it in
RAM,  of  course.  RAD and SD0 are names of RAM disks that don't get purged
when  the machine is warm-booted.  

2)  Put  the  cache  on  a  small  partition.  Putting the cache on a small
partition, say 10MB or so, will ensure that any invalidations are corrected
swiftly.   AmigaOS  appears  to  validate small partitions MUCH faster than
large ones.  This small-partition approach has the added advantage that you
can format the parition and lose very little.

3)  Disable the cache altogether.  

   Some people don't mind losing the cache, so how "persistant" you want it
is  the  issue.   If you want a very persistant cache, write it to the hard
drive.   If  you  want a somewhat persistant cache that will last until the
machine  is  shut  off,  write  it to RAD or SD0.  If you don't care if the
cache remains from one session to the next, put it in RAM or turn it off.

   Some  people  have installed AFS -- an alternative file system for Amiga
hard  drives.   This file system does not invalidate the hard drive when it
crashes,  but  has  been  known to cause other problems.  A demo version is
available on Aminet.