I looked up http://www.smartdisk.com, http://www.sandisk.com. Interesting
refurbished stuff is available in smartdisk.com. Bootable USB readers are
external and hence may not be appreciated by many organisations. An internal
drive with removable media is something that will fly.

Options:
Adtron Solid State PCMCIA drives. Media: PCMCIA Flash, Compact flash with
PCMCIA adaptor, Multimedia card with PCMCIA adaptor. Drive costs $90, PCMCIA
Adaptor $40 and 32MB CF $25.

Flashpath Adaptor. Requires a floppy drive on the machine.
Multimedia/Smartmedia cards. Need to see if the flashpath adaptor has a wp
tab. Flashpath with a 16MB Multimedia card is $20!!

IDE to CF daughterboard $20. Media CF $25. (not external though. transfer of
config will require one to physically opening the box).

I looked up http://www.ecasia.com >> smart media and it shows that a
write-protect tab area is available for that media.

Mohan
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of guitarlynn
Sent: 22 August 2002 09:29
To: [EMAIL PROTECTED]
Subject: Re: [leaf-user] [off-topic]cf/sm cards/readers


On Wednesday 21 August 2002 21:02, S Mohan wrote:
> Have done some more reading up. Am looking at Read-Only physical (not
> thro' fstab) media implementation of bering with no moving parts.
> Though Bering provides this with floppies, as a medium floppies are
> unreliable and have a serious limitation on capacity. If we can get a
> similar solution with 64MB under $100 to add on to a regular PC, I
> think it is a great boon. We had discussed the compact flash and
> smartmedia. I went thro' the Sandisk site. They also talk of
> multimedia cards of capacities of 64MB, memory sticks etc (apart from
> Smartdisk that I had posted about earlier).

There has been several threads on media other than floppies, however
CDROM's have been the only other media that has provided hardware
write protection that I am aware of at this time. The subject has always
been hung waiting on another viable alternative that hasn't shown itself
as of yet.


> Can someone draw up a comparison between cf/sm and mmc with cost
> considerations so that users know what options are available - maybe
> even post it to the FAQ. I do not know the merits and demerits of mmc
> nor have enough info on the technology, its longetivity, acceptance,
> media availability etc. I guess between CF and SM, SM presents
> greater flexibility as it can be made read only using a physical tab
> while CF cannot be. Am I right? This limitation can be overcome using
> Flashpath kind of device if it has a write-protect tab like a regular
> floppy. Does anyone have this info? Not able to make out from the
> site. I'm enamoured with the Flashpath as I could use any standard
> machine to create a bering deployment SM. It would also give the
> flexibility of building identical machines and provide redundancy
> using removable media without any special hardware like CF readers
> etc.

Have you booted a system from a SM card??? If they are bootable and
provide hardware write-protect (ie... switch or disk-tab), there are
*MANY* of us waiting for a success story!  A good possibility is running
a SM card through an USB muti-reader since someone has posted that
they have successfully booted Bering with an USB reader. I'm short of
the money to try it myself right now or I would play Devil's Advocate.

If you check the archives ~6 months ago, I attempted to write protect
an IDE HD with an in-line switch. My attempt was somewhat successful,
but has not been duplicated with any other BIOS/IDE controller. I would
not say that the result would be acceptable for production use, so this
idea was dropped as well.

If anyone wants to give the SM card/USB reader a try with the
(available?) write-protected SM card, I imagine this would work.
BTW, do you have a link for this card???

Thanks!
--

~Lynn Avants
aka Guitarlynn

guitarlynn at users.sourceforge.net
http://leaf.sourceforge.net

If linux isn't the answer, you've probably got the wrong question!


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