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Date:      Wed, 24 Jun 2009 13:20:49 -0700
From:      Gary Kline <kline@thought.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: you're not going to believe this.
Message-ID:  <20090624202048.GA27646@thought.org>
In-Reply-To: <20090624184800.GD15815@comcast.net>
References:  <20090622230729.GA20167@thought.org> <a9f4a3860906231222r65faaf1cia6b68186c79f4791@mail.gmail.com> <20090623201041.GA23561@thought.org> <20090623205944.GA43982@Grumpy.DynDNS.org> <20090624010922.GA24335@thought.org> <20090624093223.GF3468@ece.pdx.edu> <20090624184800.GD15815@comcast.net>

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On Wed, Jun 24, 2009 at 11:48:00AM -0700, Charlie Kester wrote:
> On Wed 24 Jun 2009 at 02:32:24 PDT freebsd@t41t.com wrote:
> >
> >The lifetime and reliability of SSDs are less-than-or-equal-to the
> >lifetime and reliability of spinning magnetic drives, so don't buy an SSD
> >for that. Whether SSDs use less power is an open question. There's a lot
> >of data going either way. The last comparison I saw suggested spinning
> >drives average less power than their SSD counterparts. In any event, it's
> >not clear-cut yet. SSDs probably do generate less heat (but I've not seen
> >data on that). Of course, the access time on an SSD is order(s) of
> >magnitude less than for a spinning drive, and that's cause enough for
> >lots of people to buy one.
> 
> SSD's are/should also be favored in devices that are prone to mechanical
> shocks.  E.g., tablet PC's, and handheld devices like cellphones, music
> players or game players.


	Interesting details.  I was a hardware logic major, not software,
	but I got shunted into software and went withthe flow.  To all
	the comments, pro/con, it looks that my earlier projection was
	right.  It will indeed be awhile before there are reliable
	solid-state devs that can replace the spinning disk.  And even
	then, cross-backups and even having a tape backup of critical 
	data is a must.  

	That said, I still want to buy one of these sub-mini notebooks
	this summer.  
-- 
 Gary Kline  kline@thought.org  http://www.thought.org  Public Service Unix
        http://jottings.thought.org   http://transfinite.thought.org
       For FBSD list: http://transfinite.thought.org/slicejourney.php
    The 4.98a release of Jottings: http://jottings.thought.org/index.php




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