[comp.databases] Unify 3.1D

bmp@ecs.ecs.oz (Bruce Paterson) (11/16/87)

	We have found from experience that our version of Unify 3.1D
appears to crash (randomly writes records into wrong places, quietly,
with no complaints) when the database size exceeds a magic number
somewhere near 45000 blocks.
	If this is a problem anyone else has found, and if so
do you know the magic number ?
	Do Unify 3.2/4 suffer from these problems ?

ustel@well.UUCP (Mark Hargrove) (11/23/87)

> 
> 
> 
> 	We have found from experience that our version of Unify 3.1D
> appears to crash (randomly writes records into wrong places, quietly,
> with no complaints) when the database size exceeds a magic number
> somewhere near 45000 blocks.
> 	If this is a problem anyone else has found, and if so
> do you know the magic number ?
> 	Do Unify 3.2/4 suffer from these problems ?

*3.1D* ?  Whew.  I can only guess that you must have been off of
your support contract for some time.  I recently dusted off and
converted a 3.1-vintage database to 4.0 which was roughly 48000
blocks -- we'd seen no problems with it during it's initial life
under 3.1. (er...what exactly do you mean by a 'block'? 512 or 1024?)
What machine type are you running?  Which OS?

My previous employer has a 3.2 (recently converted to 4.0) database
that's roughly 60MB right now -- no problems have been seen at all.

I strongly suggest, if you can do it, that you upgrade immediately
to Unify 4.0.  It's simply better, faster, and more wonderful than 
ever :-).

--Mark Hargrove


-- 
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Mark A. Hargrove                                             U.S. TeleCenters
Voice: 408-496-1800                                          Santa Clara, CA
uucp : {dual, hoptoad, hplabs, portal, ptsfa}!well!ustel