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From: cdl@chiton.ucsd.edu (Carl Lowenstein)
Newsgroups: comp.sys.next
Subject: Re: Hard Disks and Optical Disks
Message-ID: <1123@chiton.ucsd.edu>
Date: 23 Jun 91 05:45:32 GMT
References: <1991Jun20.181149.17058@bellcore.bellcore.com> <1991Jun21.170759.27997@cs.yale.edu>
Reply-To: cdl@chiton (Carl Lowenstein)
Organization: Marine Physical Laboratory, UCSD
Lines: 33

In article <1991Jun21.170759.27997@cs.yale.edu> sanders-malcolm@CS.YALE.EDU (Malcolm Sanders) writes:
>In article <1991Jun20.181149.17058@bellcore.bellcore.com> kph@blackhole.bae.bellcore.com (Keith P. Hawkins) writes:
>
>   I have an 040 Cube running 2.0 with just the swapdisk and the 
>   optical drive. I am now running out of free space on my optical. 
>   I am thinking about getting a harddisk for the machine.  
>
>My understanding is that the 330 Mb disk drive is the largest that
>can coexist with the optical disk inside the cube.  

At least one misunderstanding here -- no valid reason (except possibly
power consumption) why you can't put a *big* disk drive in a cube along
with the OD.  I have a 660MB MaxTor in mine.  When the NeXT 030 cubes
came with hard disks they were sold with nothing over 330MB because of
economics, but the price of disk drives keeps going down.

> If you want a 
>larger hard disk, you will have to hang it (or the optical disk 
>drive) off the SCSI port.

Another misunderstanding here -- the NeXT internal OD is *not* SCSI.  It
has its own controller and internal bus.

>I would tend to have the stuff that is used most often on the hard
>disk, since it has a faster seek time than the optical disk.

Good idea here.  Use the OD as archival storage, and bring things from it
to use as needed.

-- 
        carl lowenstein         marine physical lab     u.c. san diego
        {decvax|ucbvax} !ucsd!mpl!cdl                 cdl@mpl.ucsd.edu
                                                  clowenstein@ucsd.edu