Re: Dead brand new SCSI drive?

From: Edward Alfert (ealfert_at_rootmode.com)
Date: 02/14/04 

Date: 14 Feb 2004 18:25:15 GMT

Steve Schreiber <sschreibATTmagmaDOTTca> wrote in
news:m8KdnbqZhdLqwLPdRVn-uQ@magma.ca:

> Hey,
>
> Any chance it is a termination problem? I have had that before,
> and
> that's what the problem was. Just forgot the stupid terminator!

The terminator is permanently attached to the cable. The cable has
connectors for 4 harddrives. This is the cable that came with the Dell
server. So I do not believe this is my problem.

I do notice that the harddrives have "Termination Power" jumpers. All four
drives have this jumper on. The two drives that came from installed from
Dell had them on the "on" position so when I added the two new drives I
left them "on" also.

But in readining the Maxtor documentation for the dirve, it says, "TP -
Termination Power: Pins 27-28 - Termination power ensures that there is a
sufficient power level along the entire SCSI bus. It is recommended that
the final device on the SCSI bus have the Termination Power jumper
installed. All devices in between the host and final device typically have
no jumper on Termination Power. Note that Termination Power is not the
same as on-board termination, which this drive does not support.".

It does not say that all devices in between the host and final device "have
to have" the jumper off. It says that "typically" it has it off. But I
guess I can try removing the Termination Power Jumper from the middle two
drives and see if this fixes my problem. But, remember that all 3 Fujitsu
are working with all having this jumper on.

> Might want to make sure the terminator has the right impedance to,
> have had those problems before as well. It is giving an I/O error on
> sector 0, can you try plowing a disk label onto it?

I'm sorry but you lost me there. If you can give me the command to put a
"disk label" on the drive, I can then do a man on the command or do some
research. But without knowing which command to use, I'm at a loss.

> zero the disk
> maybe(dd)?

I'll do some research on dd to see how to do that. Thanks for the pointer.

> Just throwing thing out for you...
> S.

Thanks for your help. 

-- 
Edward Alfert - http://www.rootmode.com/
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