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Date:      Fri, 23 Nov 2001 10:54:35 +0100
From:      Robert Suetterlin <robert@mpe.mpg.de>
To:        freebsd-questions@FreeBSD.ORG
Subject:   need recommendation on hirarchical storage management. (reposted)
Message-ID:  <20011123105435.A69665@robert2.mpe-garching.mpg.de>
In-Reply-To: <20011120171803.A22854@robert2.mpe-garching.mpg.de>; from robert@mpe.mpg.de on Tue, Nov 20, 2001 at 05:18:03PM %2B0100
References:  <20011120171803.A22854@robert2.mpe-garching.mpg.de>

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Hello,

is there a working hirarchical storage management solution for
*BSD?  Like Samfs (Solaris) Tivoli (several) etc.

I really need a hint where to look for it or whom to ask?  A search on
Google, the FreeBSD Faq and Manual, the ports collection revealed
nothing.  A search in old mailing list archives found netbsd thread on
this topic from 1998... but only a discussion on starting HSM support in
netbsd.

It would also be sufficient, if there was a *BSD-DMAPI (also called
OpenXDSM).

Personally I would prefer a lightweight, open source, free solution, as
this will be used in a scientific program.  And I would like to have it BSD,
because that is with what I work, found most convenied for our computing
needs and allows for a wide range of hardware.
	The two alternatives (commercial) I found so far would be a Sun
+ Solaris + Samfs or a completely handmade proprietary device.  The
first might have problems with the limits (see below) and the second
will not allow for easy upgrade to new hardware (project launched 2006+)
and software advancements.

Our experiment will be hosted on the ISS (international space station).
It needs to record a data stream (uncompressed images) at approx 260MByte
per Second.  In bursts of 45Minutes.  Over 5-10 years, with periodic
(i.e. Shuttle Mission Interval) replacement of permanent storage (best
would be tape).  Limits are spacial 494x435x248mm, power 200W (at 28VDC),
disturbance of microgravity (by rotating media), noise.

Bye, Robert.

-- 
Robert Suetterlin (robert@mpe.mpg.de)
phone: (+49)89 / 30000-3546   fax: (+49)89 / 30000-3950

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