Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!umich!yale!think!snorkelwacker!apple!motcsd!hpda!hpcuhb!hpindda!kmont
From: kmont@hpindda.HP.COM (Kevin Montgomery)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Speeding up disk accesses - Food for thought.
Message-ID: <40970033@hpindda.HP.COM>
Date: 18 Jan 90 22:55:50 GMT
References: <361@marvin.moncam.co.uk>
Organization: The Lab Rats-West
Lines: 11

> actually on the mainframe systems i used to administer, we tried to
> keep the most used/important files in the center (middle track) of the
> disk.  that keeps the max seek down to 1/2 of the disc, and the average

blah.  AT&T filesystem.  note that this whole discussion varies greatly
depending on the filesystem in use- BSD, for example, uses concentric
rings of i-nodes and data blocks, so that it's never far from one to
the other.  MSDOS probably keeps the directory info in one place.  Dunno
about AFS or Xenix.  just remember, your mileage may differ...

					-bop