NetNews Usenet Archive 1992 #31/NN_1992_31.iso/spool/comp/sys/hp/14327

Text File | 1992-12-23 | 1.6 KB | 35 lines

Newsgroups: comp.sys.hp
Path: sparky!uunet!utcsri!helios.physics.utoronto.ca!alchemy.chem.utoronto.ca!system
From: [e-mail] (System Admin (Mike Peterson))
Subject: Re: How does 'mediainit -G' (guru mode :-) work?
Message-ID: <[e-mail]>
Organization: University of Toronto Chemistry Department
References: <sean.724847789@coombs> <[e-mail]> <[e-mail]>
Date: Wed, 23 Dec 1992 05:00:13 GMT
Lines: 24

In article <[e-mail]> [e-mail] (Hellmuth Michaelis) writes:
>In <[e-mail]> [e-mail] (Wayne Krone) writes:
>
>>I'm curious as to why you want to use a sector size different from the
>>default chosen by the disk vendor?  And how many other folks reading
>>this want to do the same?
>
>Isn't it true, that a larger physical sector size gives you
>
>    - better i/o throughput (if the driver supports it)
>    - larger disk capacity

I don't have the figures in front of me, but as I recall, a Fujistsu
2 GB disk will format to give about 1.6 MB with 512 byte sectors,
and 1.75 MB with 1024 byte sectors. After 2048 byte sectors, the
disk size is pretty constant, then starts to decline again above
8096 byte sectors. I don't have any idea why people still use 512
byte sectors unless their vendor forces them to - we would switch
immediately if it worked, as we can use an extra 150 MB of disk space
for "free".
--
core error - bus dumped    -*-    Mike Peterson, SysAdmin, U/Toronto Chemistry
 *******   As usual, I speak only for me, myself and I; nobody else   *******
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