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5 total messages Started by Evan Leibovitch Sun, 02 Jan 1994 05:00
Can an Archive 2150S tape drive be set read-only?
#2901
Author: Evan Leibovitch
Date: Sun, 02 Jan 1994 05:00
18 lines
1537 bytes
I don't want to set it, I want to turn it off.

I recently bought a used 2150S with no docs, which reads everything I
throw in it, but won't write a byte. The people who sold it to me said
they tested it out, so I'll assume that it functions OK. Since I
don't have a descriptions of any jumpers outside of SCSI ID settings,
I have no idea if the drive migh be set read-only.

Is this possible? If so, can I turn it off? The drive is under a
warranty but it'll be a pain to send it back and I want to try this
avenue first.

Thanks for any help.

-- 
 Evan Leibovitch, Sound Software Ltd., located in beautiful Brampton, Ontario
         evan@telly.on.ca / uunet!utzoo!telly!evan / (905) 452-0504
The good ol' days: When you only worried where Michael Jackson touched himself
Re: Can an Archive 2150S tape drive be set read-only?
#2902
Author: PPH Bauwens
Date: Sun, 02 Jan 1994 20:36
23 lines
1754 bytes
Evan Leibovitch (evan@telly.on.ca) wrote:
: I don't want to set it, I want to turn it off.

: Is this possible? If so, can I turn it off? The drive is under a
: warranty but it'll be a pain to send it back and I want to try this
: avenue first.

Make sure you have a DC6150 or 6250 tape certified for 12500BPI
because most 150MB streamers including the 2150 will not write
to old 30MB or 60MB media although you can read them.

The drive can tell the type of media from the number and distances of the
small holes at the begin and end of the tape :-)

Other than that the Archive 2150S drive works with almost any
SCSI installation - one of the best around. I have one myself!

A happy New Year!
-- 
--------------------------------------------------------------------------
Paul Bauwens				Email:	paul@pphbau.atr.bso.nl
Rietkerkweg 364					paul@pphbau.hobby.nl
3066VL Rotterdam  Nederland		Phone:	+31-10-4211858
Re: Can an Archive 2150S tape drive be set read-only?
#2903
Author: Karl Denninger
Date: Sun, 02 Jan 1994 23:35
48 lines
2645 bytes
In article <1994Jan2.203600.282@pphbau.atr.bso.nl>,
PPH Bauwens <paul@pphbau.atr.bso.nl> wrote:
>Evan Leibovitch (evan@telly.on.ca) wrote:
>: I don't want to set it, I want to turn it off.
>
>: Is this possible? If so, can I turn it off? The drive is under a
>: warranty but it'll be a pain to send it back and I want to try this
>: avenue first.
>
>Make sure you have a DC6150 or 6250 tape certified for 12500BPI
>because most 150MB streamers including the 2150 will not write
>to old 30MB or 60MB media although you can read them.
>
>The drive can tell the type of media from the number and distances of the
>small holes at the begin and end of the tape :-)
>
>Other than that the Archive 2150S drive works with almost any
>SCSI installation - one of the best around. I have one myself!

This is NOT true.

DC600A tapes will be written in 120MB (QIC-120) format.  The drive can READ
data written in 30 and 60MB format, however, it will write on 60MB tapes
with a capacity of 120MB (I don't know about the 30MB format; it may not be
able to write on those; I've never tried it).

The Archive 2150S will read:

30MB
60MB (DC600A tapes)
120MB (DC600A tapes written on a QIC-120 drive or another 2150S)
150MB (DC6150 tapes)
250MB (DC6250 tapes)

It will write:

120MB (QIC120 format on DC600A tapes)
150MB (DC6150 tapes, QIC150)
250MB (DC6250 tapes, identical to QIC150 but on extended length media)

All this is from first-hand experience with the drive over a space of nearly
seven years.  It is still going strong; one of the best pieces of hardware I
have ever owned.

--
Karl Denninger (karl@MCS.COM) 	| MCSNet - First Interactive Internet and 
Modem: [+1 312 248-0900]	| Clarinet feed in Chicago.  Send email to
Voice/FAX: [+1 312 248-8649]	| "info@mcs.com" for more information.
Re: Can an Archive 2150S tape drive be set read-only?
#2904
Author: PPH Bauwens
Date: Mon, 03 Jan 1994 19:13
42 lines
2717 bytes
Karl Denninger (karl@MCS.COM) wrote:

: This is NOT true.

: DC600A tapes will be written in 120MB (QIC-120) format.  The drive can READ
: data written in 30 and 60MB format, however, it will write on 60MB tapes
: with a capacity of 120MB (I don't know about the 30MB format; it may not be
: able to write on those; I've never tried it).

I never had much luck with using DC600A 10000ftpi (or flux changes/inch)
tapes in my Archive 2150S. How about a possible difference between a
_blank_ DC600A and one that has been already magically written at QIC-120?

Other than that has someone tried using a DC6150 tape in a 60MB streamer?

I guess that with the small difference in spec between a DC600A and a DC6150
tape (10000ftpi versus 12500 ftpi) many more recent DC600A tapes may be
DC6150 tapes in disguise. Why keep up two separate production lines?
If the customer pays for a fancier sticker that is his problem :-)

The tapes are just as wide, only the DC6150 has an additional tape guide
next to the capstan for better guiding reliability to allow cramming on
18 tracks in stead of 15.

: It will write:

: 120MB (QIC120 format on DC600A tapes)
: 150MB (DC6150 tapes, QIC150)
: 250MB (DC6250 tapes, identical to QIC150 but on extended length media)

I'll give it another try. Can get many DC600A tapes...

: All this is from first-hand experience with the drive over a space of nearly
: seven years.  It is still going strong; one of the best pieces of hardware I
: have ever owned.

  Agreed! Works perfectly under ESIX.
-- 
--------------------------------------------------------------------------
Paul Bauwens				Email:	paul@pphbau.atr.bso.nl
Rietkerkweg 364					paul@pphbau.hobby.nl
3066VL Rotterdam  Nederland		Phone:	+31-10-4211858
Re: Can an Archive 2150S tape drive be set read-only?
#2906
Author: Don Lewis
Date: Thu, 06 Jan 1994 09:22
23 lines
2115 bytes
In article <1994Jan3.191320.486@pphbau.atr.bso.nl>,
PPH Bauwens <paul@pphbau.atr.bso.nl> wrote:
>Karl Denninger (karl@MCS.COM) wrote:
>
>: This is NOT true.
>
>: DC600A tapes will be written in 120MB (QIC-120) format.  The drive can READ
>: data written in 30 and 60MB format, however, it will write on 60MB tapes
>: with a capacity of 120MB (I don't know about the 30MB format; it may not be
>: able to write on those; I've never tried it).
>
>I never had much luck with using DC600A 10000ftpi (or flux changes/inch)
>tapes in my Archive 2150S. How about a possible difference between a
>_blank_ DC600A and one that has been already magically written at QIC-120?

I've had problems writing QIC-120 format tapes if they were previously
written in 60MB format.  Erasing the tape, removing it from the drive,
and re-inserting it was enough to make it writable.  I don't know what
brand of QIC-150 drive it was.
-- 
Don "Truck" Lewis              Phone: +1 916 478-8284   Silicon Systems
Internet: gdonl@gv.ssi1.com    FAX:   +1 916 478-8251   138 New Mohawk Road
UUCP: {uunet,tektronix!gvgpsa.gvg.tek.com}!ssigv!gdonl  Nevada City, CA  95959
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