Path: utzoo!attcan!uunet!portal!cup.portal.com!Eric_Shockwave-Rider_Larson
From: Eric_Shockwave-Rider_Larson@cup.portal.com
Newsgroups: comp.sys.mac
Subject: Re: stand Mac II vertically?
Message-ID: <5684@cup.portal.com>
Date: 20 May 88 23:47:47 GMT
References: <1856@uhccux.UUCP> <656@amethyst.ma.arizona.edu>
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Organization: The Portal System (TM)
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One possible concern about mounting a Mac II vertically comes from the
hard disk orientation, where there are several potential problems, the
other is ventilation. In a forced convection cooled system, physical
orientation is *usually* not a concern.

But for hard disks, there are two potential problems. The first is
the orientation of the drive. Just about all PC drives are capable of
operating mounted vertically. BUT, notice that in the Mac II, it's
a different orientation than in the case of PC hard drive (or
folks like Dataframe as well, who mount hard disks vertically). Some
Seagate manuals refer to this long axis vertical orientation as
"forbidden". Of, course, it may be perfectly ok for other brands.

The second has to do with a slight eccentricity in the path traced by
read/write heads on the disk surfcace when the drive is mounted vertically;
this eccentricity is the reason most manufacturers recommend a reformat
when changing disk mounting orientation.