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Date:      Wed, 7 Oct 1998 10:00:29 -0400
From:      "Christopher G. Petrilli" <petrilli@amber.org>
To:        freebsd-small@FreeBSD.ORG
Subject:   Re: New microdrives from IBM
Message-ID:  <19981007100029.30754@amber.org>
In-Reply-To: <82vhlwc1o2.fsf@chimp.juniper.net>; from Tony Li on Tue, Oct 06, 1998 at 11:43:25PM -0700
References:  <361A8367.3F54BC7E@anasazi.com> <82vhlwc1o2.fsf@chimp.juniper.net>

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On Tue, Oct 06, 1998 at 11:43:25PM -0700, Tony Li wrote:
> chad@rez.com (Chad R. Larson) writes:
> 
> > Another storage solution.
> > 
> > http://www.storage.ibm.com/hardsoft/diskdrdl/micro/index.htm
> 
> 
> Unfortunately, they don't seem to be touting the incredibly high MTBF
> numbers that one might like for an embedded systems product.

Unfortunately most embedded environments I've worked with, moving disks
aren't really acceptable as the G forces will kill them... try saking
your notebook around while it's runnning and slamming it against the
wall, etc :-)  Please don't call me for warranty <wink>

I think it's extreemly important to focus on a GOOD flash file
system---I'd settle for something a'la RT-11 and contiguous
files---that doesn't have huge impact on flash re-write lifetimes.  

As for the IBM drives, they look mega-cool, and will probably be useful
for a large number of applications, but I hazard they'll be IDE
attached immediately, if not sooner, and therefore aren't anything to
worry about :-)

BTW, for those worrying about cramming it onto a 1.44Mb floppy for
reasons of flash size, I went looking, and it's damned hard to find
anything under 2MB of flash any more, and many many many boards support
up to 72MB of FlashDisk.  While I understand the need to conservce
space---if not the need to spell correctly <wink>---I think that it is
important to focus on what the embedded world needs, and make sure we
can STRIP it to fit on a floppy, but not that we obsess over making
sure it fits in all forms.

Chris
-- 
| Christopher Petrilli
| petrilli@amber.org

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