[ale] CF compared to IDE

hbbs at attbi.com hbbs at attbi.com
Mon Mar 31 16:14:07 EST 2003


Maybe I spoke too soon.

I Googled myself a datasheet for the PQI DOMs and I'm seeing a read of 2.5MB/2
and a wrote of 1.2MB/s - I have 340MB IDE HDDs that go about that fast.

- Jeff
> Wow, this totally rocks.  Just one of these things - even a small one - could do
> a lot to enhance the performance of older PCs.  
> 
> - Jeff
> 
> > The DOM is a CF->IDE converter in a compact format.  It has a IDE
> > connector on one side and a power cable.  The power cable has 2 Power
> > plugs.  Using one makes it behave like a master, using another makes it
> > behave like a slave.  Although, since it plug directly into the socket
> > on the MB, you need a IDE cable with one male plug to add another drive
> > to that IDE channel. 
> > 
> > Booting is fairly fast too.  In a DOM, you get a good quality flash. 
> > Something you may not get if you are purchasing a piece of CF for your
> > camera.
> > 
> > I've used DOC (DiskOnChip) and DOM.  DOM is not single source like DOC
> > and it behaves much better and faster.
> > 
> > 
> > 
> > 
> > On Mon, 2003-03-31 at 14:29, Jeff Layton wrote:
> > > Chris Fowler wrote:
> > > 
> > > > CF Rocks.  But check out DOM's.  They are CF's in a plastic shell that
> > > > has an IDE connector.  They behave just like a IDE disk.
> > > 
> > > Isn't there something like a CF-> IDE converter as well?
> > > 
> > > Thanks!
> > > 
> > > Jeff
> > > 
> > > P.S. Sorry to email you directly
> > > 
> > > 
> > > >
> > > >
> > > > On Mon, 2003-03-31 at 14:08, Jeff Layton wrote:
> > > > > Hello,
> > > > >
> > > > >    Has anyone built a filesystem on a CF card (like ext2 or 3)
> > > > > and compared it an IDE hard drive in terms of perforamnce?
> > > > > I'm looking for a comparison of time to read/write data such
> > > > > as a Bonnie++ test, IOZONE test, even hdparm or simple 'dd'.
> > > > >
> > > > > Thanks!
> > > > >
> > > > > Jeff
> > > > >
> > > > >
> > > > > --
> > > > >
> > > > > Jeff Layton
> > > > > Senior Engineer
> > > > > Lockheed-Martin Aeronautical Company - Marietta
> > > > > Aerodynamics & CFD
> > > > >
> > > > > "Is it possible to overclock a cattle prod?" - Irv Mullins
> > > > >
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> > > --
> > > 
> > > Jeff Layton
> > > Senior Engineer
> > > Lockheed-Martin Aeronautical Company - Marietta
> > > Aerodynamics & CFD
> > > 
> > > "Is it possible to overclock a cattle prod?" - Irv Mullins
> > > 
> > > This email may contain confidential information. If you have received this
> > > email in error, please delete it immediately, and inform me of the mistake 
> by
> > > return email. Any form of reproduction, or further dissemination of this
> > > email is strictly prohibited. Also, please note that opinions expressed in
> > > this email are those of the author, and are not necessarily those of the
> > > Lockheed-Martin Corporation.
> > > 
> > > 
> > 
> > 
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