Re: IBM microdrive.

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On Thursday 14 February 2002 23:45, 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

Well, the card arrived. Has a certain amount of trouble getting detected ---
keeps showing up as Anonymous Memory --- but once it's running, it works
fine. Unfortunately, it's even slower than your benchmarks...

 Timing buffered disk reads: 64 MB in 152.29 seconds =430.34 kB/sec
 Timing buffered disk reads: 64 MB in 199.30 seconds =328.83 kB/sec

 Timing buffer-cache reads: 128 MB in 4.46 seconds = 28.70 MB/sec
 Timing buffer-cache reads: 128 MB in 4.15 seconds = 30.84 MB/sec

It's slower than 10Mb ethernet! I should have stuck to NFS! It's reported as
a TOSHIBA MK5002MPL. Any suggestions on how to speed it up? I tried turning
on multcount, but that didn't have any effect, as you found out.

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

That's the problem. I tried a 100Mb card we had here, and the iPAQ didn't
even notice I'd inserted it. The card was CardBus only. I'd rather not order
one and find out later that it didn't work.

- --
David Given
dg_at_tao-group.com

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Received on Fri Feb 15 2002 - 09:29:05 EST