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From: raylau@dasys1.UUCP (Raymond Lau)
Newsgroups: comp.sys.mac
Subject: Re: SE Internal Hard Disk Size
Message-ID: <1883@dasys1.UUCP>
Date: Tue, 3-Nov-87 09:12:47 EST
Article-I.D.: dasys1.1883
Posted: Tue Nov  3 09:12:47 1987
Date-Received: Sat, 7-Nov-87 08:45:43 EST
References: <549@wolf.UUCP>
Organization: The Big Electric Cat
Lines: 7
Keywords: How Big ?
Summary: HD Setup sets HD size

In article <549@wolf.UUCP>, drew@wolf.UUCP (Drew Dean) writes:
> My SE with Apple's 20Mb drive formatted out to 19,019K (as reported in the title
>  bar).  For a supposedly 20Mb [formatted] drive, this is a lot of bad sectors.  
> I've seen other SE's down in the 17000K range.  How big is the drive, and should
>  I be worried about the 1Mbyte I'm missing, or am I lucky to get 19,000K out?
> Email replies and I'll summarize....
> 
HD Setup (since 1.3 I think) sets the HD to a fixed amount of usable space.  Before, they formatted it to as much good sectors as that once existed, but that caused a minor problem.  If you were to back up a nearly full hd, reformat it...and then find that there's less room...makes restoring that much more difficult!  So Apple decided to leave a safety buffer and format it to a number in the 19Mb range...  (expecting that there'll never be less usable space on the disk - unless the disk is in need of replacement)