Re: IBM microdrive.

From: Paul Allen <paul.l.allen_at_boeing.com>
Date: Thu, 14 Feb 2002 15:45:20 -0800

David Given wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Thursday 14 February 2002 05:35, you wrote:
> [...]
> > I've got one of the 5Gb Toshiba PCMCIA drives and an ancient Xircom
> > "CreditCard Ethernet Adapter IIps" on my 3650 with a dual-slot sleeve.
>
> I've just ordered one of these. What's the transfer speed over the
> non-CardBus interface?

Not clear if you're asking about the disk or the network card. When
I repeatedly run "hdparm -t /dev/hda", I see numbers like this:

 Timing buffered disk reads: 64 MB in 36.56 seconds = 1.75 MB/sec
 Timing buffered disk reads: 64 MB in 26.79 seconds = 2.39 MB/sec
 Timing buffered disk reads: 64 MB in 31.40 seconds = 2.04 MB/sec
 Timing buffered disk reads: 64 MB in 26.54 seconds = 2.41 MB/sec
 Timing buffered disk reads: 64 MB in 26.96 seconds = 2.37 MB/sec

This drive apparently has no DMA modes. Increasing the multcount
value has no effect. I get similar numbers with this drive in my
old Dell Lattitude, so I guess it's just a slow drive.

> > The hard drive is often not recognized on a reboot. Pulling and
> > re-inserting the drive usually changes its mind and lets me boot
> > Intimate.
>
> Ah. Bugger.

Yep. I's not a show-stopper, but it's not good either. I tolerate
little glitches like this because everything about my iPAQ is
experimental.

> BTW, does anyone know of any non-CardBus 100Mb ethernet cards that work on
> the iPAQ?

There are several 10/100 cards listed on the compatibility page at
handhelds.org. How does one tell if a card is "non-CardBus"?

Paul Allen

-- 
Boeing Phantom Works                   \ Paul L. Allen, (425) 865-3297
Math & Computing Technology              \ paul.l.allen_at_boeing.com
POB 3707 M/S 7L-40, Seattle, WA 98124-2207 \ Prototype Systems Group
Received on Thu Feb 14 2002 - 15:41:41 EST

This archive was generated by hypermail 2.2.0 : Mon Jul 25 2005 - 17:21:11 EDT