I have a problem where a device file exists in an account, and it can be
written to, but can't write the End Of File marker.
Example:
>ASSIGN ATM20 TO MTU 0
in a program, it bombs out when trying
WEOF ELSE
and at TCL it bombs out
>T.WEOF
Magnetic tape write end of file failed. [ENOTTY] Not a typewriter
I backed up the file and tried emptying the file, but this didn't help:
$ cp -p DEVICE_ATM20 DEVICE_ATM20.orig (at unix)
$ > DEVICE_ATM20 (cleared file, at unix)
> ASSIGN ATM20 TO MTU 0 (assigned virtual tape drive, at TCL)
>T.WEOF (attempted EOF write to device:)
Magnetic tape write end of file failed. [ENOTTY] Not a typewriter
The device exists in the account as DEVICE_ATM20:
CT &DEVICE& ATM20
ATM20
0001 8mm 20.0 GB scsi
0002 /prodDev/uv/Devel2.6/DEVICE_ATM20
0003 0
0004 DT
0005
0006 /prodDev/uv/Devel2.6/DEVICE_ATM20
0007 /prodDev/uv/Devel2.6/DEVICE_ATM20
0008 find $file -print | cpio -ovcB > $tape
0009 cpio -ivcdumB $file < $tape
0010 tctl -f $tape fsf 1
0011 tctl -f $tape rewind
0012 tctl -f $tape rewind
0013 L
0014 Y
0015 Y
0016 0
0017 Y
0018
0019
It is also visible in the UniVerse home account:
+----------------------------- Maintain Devices
-----------------------------+
| File Action Help
|
+---------------------------------------------------------------------------
---+
| Device Name : ATM20 Rotate Flag : Y
|
| Description ? 8mm 20.0 GB scsi
|
| Device Type : DT Block Size : 0
|
| Device Pathname (norewind) : /prodDev/uv/Devel2.6/DEVICE_ATM20
|
| Device Pathname (rewind) : /prodDev/uv/Devel2.6/DEVICE_ATM20
|
| Lock File :
|
| Backup Shell Command : find $file -print | cpio -ovcB > $tape
|
| Restore Shell Command : cpio -ivcdumB $file < $tape
|
| Skip Shell Command : tctl -f $tape fsf 1
|
| Rewind Shell Command : tctl -f $tape rewind
|
| Offline Shell Command : tctl -f $tape rewind
|
| Account Transfer Block Size : 0
|
| R/W position : L Close on Read : Y Mult. Read @ EOF: Y
|
I assume there is a problem with the way the file is setup to emulate a tape
device?
Any help appreciated.
Thanks,
LeRoi
LeRoi Keiller
Technical Support
Ultradata - Vision to Reality
+61 3 9291 1700
www.ultradata.com.au
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