Article View: comp.sys.mac
Article #27737Re: Physical Storage Amounts on Different Hard Disks (Size of Folders)
From: Robert K. Shull
Date: Tue, 03 May 1988 17:31
Date: Tue, 03 May 1988 17:31
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In article <1988May2.130641.357@mntgfx.mentor.com> tomc@mntgfx.mentor.com (Tom Carstensen) writes: > >I noticed that each folder on the CMS we slightly larger >than the same folder on the XP20. This eventally added up >to 1M for all the folders. > The problem, so I understand, is in the way that the Mac OS keeps track of usage. Apparently a 16 bit number is used, allowing only 65536 blocks to be allocated. Thus, anything larger than about 65 meg can't be allocated in 1k blocks. The CMS 102 allocates everything in 2k blocks. I would assume that their larger drives (like the 300) would allocate in even larger blocks. BTW, try copying to/from a floppy. The difference is even more dramatic (the floppy is allocated in .5k blocks) Robert -- Robert K. Shull University of Oklahoma, Engineering Computer Network ihnp4!occrsh!uokmax!rob CIS 73765,1254 Delphi RKSHULL Opinions contained herein in no way reflect those of the University of Oklahoma.
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!osu-cis!att!att-ih!occrsh!uokmax!rob From: rob@uokmax.UUCP (Robert K. Shull) Newsgroups: comp.sys.mac Subject: Re: Physical Storage Amounts on Different Hard Disks (Size of Folders) Message-ID: <1253@uokmax.UUCP> Date: 3 May 88 17:31:00 GMT References: <1988May2.130641.357@mntgfx.mentor.com> Reply-To: rob@uokmax.UUCP (Robert K. Shull) Organization: University of Oklahoma, Norman, OK Lines: 20 Keywords: Hard disk folder storage size