Re: CMD HD mechanism failure?

From: Terry Raymond <traymond160_at_gmail.com>
Date: Sat, 30 Jan 2021 16:20:43 -0700
Message-ID: <CAJ+D7=MFcQ1f_Nca9zp+tiLjzyQQNHhZZSqiogC6hPT0mJx-Ew_at_mail.gmail.com>
Hi Justin,

I will try that for what its worth but its worth a try but its old and I
think neared its end of life. :)
Terry


On Sat, Jan 30, 2021 at 4:09 PM Justin Cordesman <
shadow_at_darksideresearch.com> wrote:

> Two things:
>
> 1. Try turning the drive upside down if you need to recover anything from
> it. Sometimes if they are having trouble getting to target speed switching
> the load to the top bearing gets you there.
>
> 2. https://store.inertialcomputing.com/SCSI2SD-s/100.htm
>
> I use one on my Powermac 9600 since it sits on the edge with the last
> support for the 400k floppies but has modern Ethernet support. There are
> newer ones since mine with higher performance. Use good media, genuine
> sandisk extreme or the like (there are a LOT of forgeries of SD and microSD
> media so shop carefully). Write endurance and I/O performance, especially
> random writes, is very different as you go up the quality scale.
>
> Justin
>
> On Jan 30, 2021, at 14:58, Terry Raymond <traymond160_at_gmail.com> wrote:
>
> 
> Hi all,
> Does anybody know much about the CMD HD?
>
> It seems my Hawk Seagate 2 gig mechanism crashed, this mechanism had
> always run fairly quiet but within this year it has gradually been running
> louder, until just last week it will not longer bootup.
> The top green Activity light comes on and blinks for an eternity then goes
> out
> then the Red Error light flashes.
> I have my CMD HD device number set at 8
> I have my UIEC2CF set right now at 9
> I used Jiffy-Dos to cycle to Device 8 but on the monitor it didnt show 8
> it
> displayed 30  but the CMD HD doesnt complete its boot, I cannot access
> anything on it, not even pulling up a directory.  :(  Yes the mechanism
> spins up but thats it, just errors, nothing.
>
> I have one other Hawk Seagate but its the type that has jumpers on the
> side of the mechanisms controller board they are labeled as:
>
> TE DS ME WP PE SS TP TP
> Do any of these jumpers need to be jumpered?  If so could someone provide
> me with a good physical layout of how the jumpers are placed, please. I
> would rather have a graphical layout  and ascii diagram wont do.
>
> So if this mech wont work I have heard that there is some kind of
> SD remake for SCSI, would this possibly work in the CMD HD?
> If so no more noisy mechanical mechanisms to listen to that would be
> really nice, the CMD HD only recognizes up to 4 gig, I think its something
> to do with the boot Rom only supports up to 4 gig.
>
> Thank you,
>
> Terry Raymond
>
>
Received on 2021-01-31 01:02:16

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