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Article #175

R/W Optical Jukebox, primarily for archive and multi-site use

#175
From: Matt Landrum
Date: Wed, 18 Nov 1992 18:38
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I need to purchase a r/w optical jukebox for use on a Sun network.
The primary purpose of this jukebox will be for archives.  The
secondary purpose is for cheaper, on-line storage.  For an optical
jukebox to be useful to us, it must have most (if not all) of the
following capabilities:

1) For purposes of archive, it should be possible to remove a disk or
disks, send them to one of our other sites, and have them placed
on-line in a jukebox ready to go.  So, it should also be easy for me
to walk up to the jukebox and grab the correct disks.  It is my
understanding that packages like AMASS can not provide this
capability.  If I can't find a system like this, I might as well buy a
high capacity tape drive, save my money, and sacrifice on-line access.

2) At minimum, directories should span both sides of the the media and
multiple disks.  It would be nice if files could as well.  For our
designs, 300 (or 500) Mb/side is not useful without this capability.

3) The filesystems on the optical media should be accessible across
the Sun network via NFS.  You should be able to use regular unix commands
to archive the data (tar, dump, cp, etc.)

3) There should be some sort of winchester cache to prevent mechanical
"thrashing" of the jukebox, and to speed read access through indexing.
I'd like the system to use my existing disk.

5) The jukebox shouldn't choke if I remove a disk (that isn't
mounted), place unformatted media on-line, or place write-protected
media on-line.

6) The system should be reliable.  It should have a fairly large
installed base with some satisfied users.

7) It would be nice if the system would allow multiple platters to be
mounted.


If I can find something that would satisfy number 1 and 6, I would
be happy.


thanks in advance
--matt
--


Matt Landrum                    | mdl@cypress.com
Cypress Southeast Design Center | office: (601) 324-4609, FAX - 4614
1 Research Blvd, Suite 200      | "There's a fine line between 
Starkville, MS  39759           |  stupid and clever" -- Spinal Tap
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Path: arc1-ca.pugleaf.net!sparky!uunet!indetech!daver!cypress.com!mdl
From: mdl@cypress.com (Matt Landrum)
Subject: R/W Optical Jukebox, primarily for archive and multi-site use
Message-ID: <MDL.92Nov18123703@ak.cypress.com>
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Organization: Cypress Semiconductor Southeast Design Center
Date: Wed, 18 Nov 1992 18:38:17 GMT