2.11BSD on two RL02 drives? Probably not, but...

Noel Chiappa jnc at mercury.lcs.mit.edu
Fri Aug 4 07:53:49 CDT 2017


    > From: Christian Corti

    > I don't like the idea of CF or SD at all. I'd pretty much prefer PATA
    > or SATA, because ... Real drives are also much more reliable than flash
    > drives,

I found this interesting/troubling, because Dave Bridgham and I decided to
use SD cards, after I initially suggested using IDE drives

(That was in part because those where what I had lying around, and because
one replaces a disk with a disk, no? - and in part because Brad Parker's RK11
emulator - the page for which appears to no longer be online, sadly - used an
IDE drive.)

But when Dave suggested using SD cards instead, I was immediately drawn to the
idea of using a memory card, because I have suffered greatly over the years
with disks failing from head crashes, etc (even IDE drives fail on occasion),
and going with non-mechanical storage, which could not (almost by definition)
have a mechanical failure attracted me greatly.

But are SD cards really that unreliable? If they were, I'd have thought I'd
have heard more about it - e.g. friends grousing about having lost things when
an SD card failed. But I don't recall ever hearing such a story? (I'm not
discussing their very long-term stability, that's different.)

	Noel


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