Unable to mount CD-R on HP Integrity VMS 8.3

[James Trickey]

I have been trying to mount a burned CD on a Intgrity system with Open VMS 8.3, but the system won't mount it.

HPOCC $ MOUNT /MEDIA=CDROM HPOCC$DNA0 OCC_V551
%MOUNT-I-OPRQST, medium is offline
%MOUNT-I-OPRQST, Please mount volume OCC_V551 in device _HPOCC$DNA0:

It says the medium os offline, yet when I look at the device;
HPOCC $ SHOW DEV HPOCC$DNA0: /FULL

Disk HPOCC$DNA0:, device type TEAC DV-28E-N , is online, file-oriented
device, shareable, available to cluster, error logging is enabled.

Error count 0 Operations completed 6590
Owner process "" Owner UIC [SYSTEM]
Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G:R,W
Reference count 0 Default buffer size 512
Total blocks 79392 Sectors per track 17
Total cylinders 292 Tracks per cylinder 16



Also the /OVER=ID and the /NOASSIST do no change it.

Interestingly, the Integrity system will mount other CD's, and the ALPHA systems we have with VMS 7.3 will mount the CD-R. It's just the CD-R that won't mount on the Integrity.

Here is what I got using an HP "Layer products" CD
HPOCC $ MOUNT /MEDIA=CDROM HPOCC$DNA0 I64DOCFEB071 /noassist
%MOUNT-I-WRITELOCK, volume is write locked
%MOUNT-I-CDROM_ISO, I64DOCFEB071: (1 of 1) , mounted on _HPOCC$DNA0:
HPOCC $ SHOW DEV HPOCC$DNA0: /FULL

Disk HPOCC$DNA0:, device type TEAC DV-28E-N , is online, allocated,
deallocate on dismount, mounted, software write-locked, file-oriented
device, shareable, available to cluster, error logging is enabled.

Error count 0 Operations completed 8294
Owner process "_FTA63:" Owner UIC [SARSAT,OCC]
Owner process ID 0000159A Dev Prot S:RWPL,O:RWPL,G:R,W
Reference count 2 Default buffer size 512
Total blocks 2074096 Sectors per track 38
Total cylinders 1476 Tracks per cylinder 37

Volume label "I64DOCFEB071" Relative volume number 1
Cluster size 0 Transaction count 1
Free blocks 0 Maximum files allowed 0
Extend quantity 0 Mount count 1
Mount status Process ACP process name "DNA0CACP"

Volume Status: ISO 9660.
Members of this volume set are HPOCC$DNA0: (rvn 1).



and here is a MSDN .NET disc

HPOCC $ MOUNT /MEDIA=CDROM HPOCC$DNA0 DN600ENU1 /noassist
%MOUNT-I-WRITELOCK, volume is write locked
%MOUNT-I-CDROM_ISO, DN600ENU1:DN600ENU1 (1 of 1) , mounted on _HPOCC$DNA0:

[Volker Halle]

James,

the first step I would try is MOUNT/FOR DNA0:
This would skip all file system related access and just make sure that the CD can be read at all. DUMP/BLOCK=COUNT=n DNA0: would then show, if the first couple of (n) blocks of the disk can be read.

$ SHOW DEV will most likely show the DNA0: as online, as it could be configured. This does NOT implay, that the volume inserted in the CD/DVD driver can be read. A read QIO can fail with a status, whioch would lead the driver to return SS$_OFFLINE.

There are so many things that can go wrong when burning CDs, it hard to say what actually went wrong.

Volker.

[James Trickey]

It is important to remember that the CD can be mounted and read on an ALPHA with VMS 7.3. So the CD was created correctly. The problem is with the Integrity with VMS 8.3 refusing to mount it.

[Hoff]

Try a different drive, and try a different batch of disks. Right now, the most likely candidate here is something in the driver or in the drive itself.

There have been various ECOs released for OpenVMS V8.3. I'd start there.

I'd also try different formulation for the CD-R, as there have been cases of media-level incompatibilities. I don't know what the current firmware revision for the TEAC DV-28E-N DVD-ROM drive might be, but that's another path to investigate.

Then escalate to HP services.

FWIW, the /MEDIA=CDROM is only needed when you want to override the particular path used to mount a disk, and force MOUNT into the ISO-9660 path.

If this disk was recorded on a Microsoft Windows platform, ensure that it uses strictly ISO-9660:1988 and does not use ISO-9660:1999 nor any of the various extensions. Most Windows tools will use extensions. (But if it worked on an older OpenVMS Alpha box, this probably isn't it...)

I've posted details of CD recording on OpenVMS at http://64.223.189.234/node/28
Details of what and how you've recorded this disk would be useful, too.

Stephen Hoffman
HoffmanLabs LLC

[Heuser-Hofmann · Accepted solution]

Hi,

try to install this patch:

VMS83I_CDDVD-V0200.ZIPEXE

The unpatched dndriver tells the wrong total size.

eberhard

[James Trickey]

The patch seems to do the trick.

There is a consolidated Upgrade Patch V400 which included the CDDVD patch so I insatlled that and thing work fine now.

Thanks

[James Trickey]

The patch seems to do the trick.

There is a consolidated Upgrade Patch V400 which included the CDDVD patch so I insatlled that and thing work fine now.

Thanks