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Re: Using SCSI tapes (even more strange...)
by amateurgo
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In the ongoing effort...
I wrote some data to a aws tape with the intent of doing a tapecopy to the SDLT. I did a devinit 560 -some aws file- to make sure the SDLT was released from the Herc system. When I did the tapecopy I got the same 'device or resource busy' message. So I figured I'd try the fuser command again, just in case. This time 'fuser /dev/nst0' returned two thread IDs. I went looking for the TIDs using ps -ef | grep and found them both. The two threads are, according to this, the two x3270 sessions I have going. (I start them as part of the herc start-up.) Now, how or why x3270 could be 'owning' the SDLT tape device, I have no idea.
Any suggestions??
Thanks
--- In hercules-390@..., "amateurgo" <amateurgo@...> wrote:
>
> Is there something special you have to do to use a SCSI tape drive??
> I'm trying to help a friend try to use a SCSI tape drive (SDLT) on Hercules (3.06 on Linux) but we keep ending up with the tape drive "device or resource busy".
> Prior to starting hercules I can use mt to control the tape drive (/dev/nst0) with no problem, but as soon as we try to use it from Herc we get the resource busy error, with lots of messages such as:
> 08:46:39 HHCTA024E Error opening 0:0560=/dev/nst0; errno=16: Device or resource busy
> 08:46:39 HHCCP048I 0560:CCW=07400001 00000000=>000A0000 00900074 40404040 F0F04040 ........ 00
> 08:46:39 HHCCP075I 0560:Stat=0E00 Count=0001
> 08:46:39 HHCCP076I 0560:Sense=50420022 00000020 00000000 00000000 00000000 00000000
> 08:46:39 HHCCP077I 0560:Sense=INTREQ EQC ITF WRI
> The device is defined as:
> 0560 3480 /dev/nst0 --no-erg --blkid-32
>
> Any suggestions?
>
I wrote some data to a aws tape with the intent of doing a tapecopy to the SDLT. I did a devinit 560 -some aws file- to make sure the SDLT was released from the Herc system. When I did the tapecopy I got the same 'device or resource busy' message. So I figured I'd try the fuser command again, just in case. This time 'fuser /dev/nst0' returned two thread IDs. I went looking for the TIDs using ps -ef | grep and found them both. The two threads are, according to this, the two x3270 sessions I have going. (I start them as part of the herc start-up.) Now, how or why x3270 could be 'owning' the SDLT tape device, I have no idea.
Any suggestions??
Thanks
--- In hercules-390@..., "amateurgo" <amateurgo@...> wrote:
>
> Is there something special you have to do to use a SCSI tape drive??
> I'm trying to help a friend try to use a SCSI tape drive (SDLT) on Hercules (3.06 on Linux) but we keep ending up with the tape drive "device or resource busy".
> Prior to starting hercules I can use mt to control the tape drive (/dev/nst0) with no problem, but as soon as we try to use it from Herc we get the resource busy error, with lots of messages such as:
> 08:46:39 HHCTA024E Error opening 0:0560=/dev/nst0; errno=16: Device or resource busy
> 08:46:39 HHCCP048I 0560:CCW=07400001 00000000=>000A0000 00900074 40404040 F0F04040 ........ 00
> 08:46:39 HHCCP075I 0560:Stat=0E00 Count=0001
> 08:46:39 HHCCP076I 0560:Sense=50420022 00000020 00000000 00000000 00000000 00000000
> 08:46:39 HHCCP077I 0560:Sense=INTREQ EQC ITF WRI
> The device is defined as:
> 0560 3480 /dev/nst0 --no-erg --blkid-32
>
> Any suggestions?
>
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