[comp.sys.att] Help with tape cardrige in 3b2/400

ilan343@violet.berkeley.edu (07/06/90)

I having problems with the tape drive in a 3B2/400, actually the drive
in unusable.

Typical symptoms:

	Formatting a tape gives the message
	
	ctcfmt: format failed for /dev/rsA/ctape1 errno=5

        
	Getting info on a supposedly OK backup tape gives me

	ctcinfo: cannot open /dev/rsA/ctape1 error=215


I am running SysV 3.0, and already tried reinstalling the Cartrige Tape
Utilities.

Can any kind soul give me a hint if this hardware or software related?
Is there an easy fix I could try ?

Thank for you help,

		Geraldo Veiga

gentry@kcdev.UUCP (Art Gentry) (07/08/90)

In article <1990Jul5.195559.6587@agate.berkeley.edu> ilan343@violet.berkeley.edu writes:
>I having problems with the tape drive in a 3B2/400, actually the drive
>in unusable.
>
> [symptoms description deleted for brevity]
>
>Can any kind soul give me a hint if this hardware or software related?
>Is there an easy fix I could try ?
>
What the error is telling you is the driver cannot "open" the drive.
This is typically caused by one of the following:

1) tape is write protected
2) tape is defective
3) kernel or device file is pointing to the wrone major/minor device
4) tape drive is defective

If when you attempt to write to or read from the tape, the access light
comes on, then forget #3;  look for a protected tape or defective unit.

Art

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dsmith@csusac.csus.edu (Dick Smith) (07/08/90)

I would like to add to the suggestions from Art Gentry.

>In article <1990Jul5.195559.6587@agate.berkeley.edu> ilan343@violet.berkeley.edu writes:
>>I having problems with the tape drive in a 3B2/400, actually the drive
>>in unusable.
>>
>> [symptoms description deleted for brevity]
>>
>>Can any kind soul give me a hint if this hardware or software related?
>>Is there an easy fix I could try ?
>>
>What the error is telling you is the driver cannot "open" the drive.
>This is typically caused by one of the following:
>
>1) tape is write protected
>2) tape is defective
>3) kernel or device file is pointing to the wrone major/minor device
>4) tape drive is defective
>
>If when you attempt to write to or read from the tape, the access light
>comes on, then forget #3;  look for a protected tape or defective unit.
>
>Art

I had the same error messages and after trying several tapes I looked
at the heads and descovered them to be covered with oxide. After cleaning
everything worked perfectly.

dick
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