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SYSTEM account unable to mount device

 
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Jan Mlotkiewicz
Occasional Advisor

SYSTEM account unable to mount device

Got a VAX 6000-620 running OpenVMS 6.2 that we're porting to a CHARON-VAX emulator. We noticed that the SYSYEM account could dismount a volume on the emulator, but not remount it, except during a system boot.
Tried the same thing on the VAX 6000 with the same result.

Anyone know why the system account would not be able to mount disk? We try MOUONT/OVER=ID and MOUNT/SYSTEM SCRATCH SCRATCH and it times out.

SHO DEV lists the device as online, but the mount attempt says it can't find the device.

I don't have the same problem with tapes though. They mount / dismount just fine.

Any thoughts / ideas would be very welcome

Thanks.
17 REPLIES 17
Jur van der Burg
Respected Contributor

Re: SYSTEM account unable to mount device

Take a look in the emulaotr's logfile. Any errors will be logged there. Also, show us the exact mount commands en the resulting error.

Jur.
Hoff
Honored Contributor

Re: SYSTEM account unable to mount device

What connection between the real VAX and the CHARON-VAX exists here?

It seems that there are hardware configuration issues.

Anything in the error log?

Please post the commands used and the full text of the error messages received; paraphrasing commands and error text is hazardous as there are many errors here, and often with subtle differences.

Are there logical names getting in the way of the MOUNT command? SHOW LOGICAL on the device names referenced here, on the off change that somebody here is remapping devices via logical names.
Jan Mlotkiewicz
Occasional Advisor

Re: SYSTEM account unable to mount device

>> What connection between the real VAX and the CHARON-VAX exists here?

The CHARON-VAX was built from system backups of the 6000-620 that I ran using the BACKUP/IMAGE command. So it is an exact image of the existing VAX.

>>It seems that there are hardware configuration issues.

I do know that if we boot from a different system image, the emulator has no problem mounting. It appears to be something specific to the original VMS image taken from the 6000.

>>Anything in the error log?

Nope! I had the guy from the vendor check the emulator and he said it had nothing. ( By the way, Jur - Greg Snider said to say hi! )

>>Please post the commands used and the full text of the error messages received; paraphrasing commands and error text is hazardous as there are many errors here, and often with subtle differences.

OK..

Did a DISMOUNT RF0C24$DIA7:
( which was mounted with volume label of SCRATCH ). That went fine.
Then did MOUNT/SYSTEM RF0C24$DIA7 SCRATCH SCRATCH ( on the 6000-620 ). It sits for about 3 minutes, then comes back with:

%MOUNT-I-OPRQST, DEVICE _RF0C$DIA7: is not available for mounting

SHO DEV DIA shows that device as Online with 0 for error count

>>Are there logical names getting in the way of the MOUNT command? SHOW LOGICAL on the device names referenced here, on the off change that somebody here is remapping devices via logical names.

sho log/full MOUNT
%SHOW-S-NOTRAN, no translation for logical name MOUNT

show sym MOUNT
%DCL-W-UNDSYM, undefined symbol - check validity and spelling

so no, there are no logicals getting in the way.

Jim_McKinney
Honored Contributor

Re: SYSTEM account unable to mount device

Throw a "/NOASSIST" on your MOUNT command and see if any error is then reported back to your terminal.
Jan Mlotkiewicz
Occasional Advisor

Re: SYSTEM account unable to mount device

>>>Throw a "/NOASSIST" on your MOUNT command and see if any error is then reported back to your terminal

MOUNT/SYSTEM/NOASSSIST RF0C24$DIA7 SCRATCH SCRATCH comes back with

%MOUNT-F-DEVBUSY, mount or dismount in progress on device
Jim_McKinney
Honored Contributor

Re: SYSTEM account unable to mount device

But a SHOW DEVICE/FULL doesn't reveal what interest is held on it?
Jan Mlotkiewicz
Occasional Advisor

Re: SYSTEM account unable to mount device

SHO DEV /FULL RF0C24$DIA7 gives:

( I have to go back to the console to get this as the 6000 is off the network, so just getting some of it. )

Owner Process ""
Owner Process ID 00000000
Reference Count 0
Owner UIC [SYSTEM,MANAGER]
Host Type, avail RF72,yes
Jim_McKinney
Honored Contributor

Re: SYSTEM account unable to mount device

Well, that doesn't look busy ;) Have you attempted to query the DSSI controller?
Jan Mlotkiewicz
Occasional Advisor

Re: SYSTEM account unable to mount device

>>Have you attempted to query the DSSI controller?

Nope. Not sure that I know the correct command for that either, since i'm sort of fumbling my way round as a VAX admin, since we no longer have one.

The system is not busy, since it is completely off the network, unavailable to users, since they're on the emulated environment. I couldn't take SCRATCH offline on the live environment so had to do the test on the 6000.
But, since the emulator is an exact image of the VAX, once I figure out the problem on the VAX, i'll have the solution for the emulator.