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From: bates@ssdevo.dec.com (Ken Bates	DTN 522-2039)
Newsgroups: comp.sys.mac
Subject: The never ending penny (or, Tales From the Darkside)
Message-ID: <7377@decwrl.DEC.COM>
Date: Mon, 5-Jan-87 20:52:16 EST
Article-I.D.: decwrl.7377
Posted: Mon Jan  5 20:52:16 1987
Date-Received: Tue, 6-Jan-87 02:37:53 EST
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 49



I've been having a problem lately in that the the total of the blocks in use 
and blocks free as shown by the Finder seem to be increasing. Although not one
to complain about a disk which increases the available storage on a daily basis,
I'm a little nervous about such things as doubly allocated blocks and the like.

The configuration is a 512E with a Hyperdrive 20 with one HFS drawer. The
Hyperdrive software is V3R1, and the System/Finder are the latest. The figures
below are extracted from the Finder, and 2 GCC supplied utilities, Manager and
HyperTools. The exact scenario is as follows: 

Finder:		10,884 free	10,309 in use		(21,193 total)
Hyper Tools:			11,776 in use	\
Manager:	 7,680 free			/ 	(19,456 total)

After a quick optimize using the HyperTools utility (2 blocks recovered):

Finder:		10,884 free	10,309 in use		(21,193 total)
Hyper tools:			11,264 in use	\
Manager:	 8,192 free			/	(19,456 total)

After full optimize using the HyperTools utility (2 blocks recovered):

Finder:		10,293 free	 9,006 in use		(19,299 total)
Hyper tools:			10,752 in use	\
Manager:	 8,704 free			/	(19,456 total)

Following this, booting from the Hyperdrive failed with an error of -60 while 
mounting startup drawer. After initializating the Hyperdrive and performing a 
full restore:

Finder:		 8,852 free	10,293 in use 		(19,145 total)
Hyper tools:			10,752 in use	|
Manager:	 8,704 free			|-	(19,456 total)

The only consistant figure is the 19,456 total reported by the 2 Hyperdrive
utilities, while the Finder only appears accurate after an initialization and
restore. I calloed GCC, but they had no idea what the problem was. Has anyone
else seen behavior like this or have any idea what is going on? The problem is
very repeatable (the Finder is currently showing 10,724 free, 10,213 in use, for
a total of 20,937). I have let the total of in use and free approach 30MB before
loosing my nerve and initializing and restoring, and nothing has appeared to be
corrupted yet. I suspect the Finder, since the GCC utilities appear to report
both accurate and stable figures, but since I haven't heard any other reports of
this nature, I can't really believe that the Finder is to blame. Any ideas?
Doing a ~10MB restore once a week is really getting old!

    - Ken Bates