On Wed, Dec 30, 2020 at 10:28 PM, Fish Fish wrote:
By doing it in the CORRECT sequence instead ("detach 181" from CMS guest and nothing else), VM's I/O request to unmount the tape then succeeds.
Fish, I don't understand. If I do
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/attach 481 to cmsuser as 181
devinit 481 fish.het
det 181
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then the tape is unmounted yes, but I get:
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TAPE 481 DETACHED CMSUSER? 181? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
DMKTAP516I TAPE 481 BAD SENSE? ?CMD= 0F? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
SNS= 4022000000C003000000000000800100010000FFFF000000? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
CSW= 00F0AD68 2E000001 USERID= SYSTEM
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The (information) message DMKTAP516I is generated by "an error recovery routine [which] encountered an error on a sense operation".
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Why the message? The tape was there and VM did rewind it and unmount it.?
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However, if I do
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/attach 481 to cmsuser as 181
devinit 481 fish.het
devinit 481 *
det 181
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or just
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/attach 481 to cmsuser as 181
/detach 481 from cmsuser
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I get
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TAPE 481 DETACHED CMSUSER? 181? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??
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and no DMKTAP516I message. Now VM is trying to rewind and unmount a non-existing tape and get so confused that it can not produce any message induced by the said confusion?
I don't know about VM but poor Rene *is* confused. :-)
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Rene FERLAND, Montreal
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René Ferland