Newsgroups: comp.unix.aix,comp.sys.hp.hardware,sci.image.processing
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!howland.reston.ans.net!pipex!uunet!world!mew
From: mew@world.std.com (Michael E Willett)
Subject: Re: 3rd Party Jukebox
Message-ID: <D0Kqxt.8LK@world.std.com>
Organization: The World Public Access UNIX, Brookline, MA
Date: Sat, 10 Dec 1994 02:58:40 GMT
Lines: 29
Xref: glinda.oz.cs.cmu.edu comp.unix.aix:55276 comp.sys.hp.hardware:5692 sci.image.processing:11373

rtms@ins.infonet.net writes:

>We are looking at adding a hp jukebox to an IBM rs/6000 220...
>Any information would be beneficial.

Hi Jim,

With the dropping prices of magnetic drives and their increasing 
capacity, e.g. 9 GB Seagate Barracudas, jukeboxes are becoming
obsoleted by high performance disk arrays.  We're talking something
like 70 cents/MB in large RAID configurations.

There was a recent study performed for the US Coast Guard which indicated 
it no longer makes sense from a price/performance point of view to
put in a jukebox.

Jukeboxes are notoriously slow versus even the slow RAID 3/5 
architectures from the mid-80s.  With our built-in CPU, real time
operating system with memory management, and per-disk read caching, plus 
central caching, we achieve very major improvements over the earlier 
RAIDs, which are in turn faster than jukeboxes.  Our clustered, SCSI-based
RAID 7 configurations can hold more than 1,000 GB of storage, a terabyte.

Mike Willett
Storage Computer Corp.
11 Riverside Street
Nashua, NH 03062
Tel 603-880-3005
Fax 603-889-7232
