topic Re: ODS 5 Case sensitive file names in Operating System - OpenVMS

ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 17:05:52 GMT

I have a strange issue that I can't seem to diagnose. In a single directory, I have files with identical file names and versions, with the exception that they are different case. Example:

Da_Trans.001;1
DA_TRANS.001;1

This is on a new OpenVMS 7.3-2 installation, and my other machine is the same version but I cannot recreate it there. Is there some setting that I missed on the 2nd machine?

Re: ODS 5 Case sensitive file names

Volker Halle — Thu, 03 Dec 2009 17:10:15 GMT

$ HELP SET PROCESS/PARSE_SYTLE

Volker.

Re: ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 17:19:34 GMT

I logged into both machines and did

$ show process/all

Parse Style = extended on both machines.

Re: ODS 5 Case sensitive file names

Robert Gezelter — Thu, 03 Dec 2009 17:23:26 GMT

Tshroeder,

It may be somewhat simplistic, but I for one would be interested in seeing the output from SHOW DEVICE/FULL for BOTH volumes.

Perhaps one of the volumes is not ODS-5?

- Bob Gezelter, http://www.rlgsc.com

Re: ODS 5 Case sensitive file names

Hein van den Heuvel — Thu, 03 Dec 2009 17:23:53 GMT

An of course the disk must be ODS5.

$ write sys$output f$getdvi("sys$disk:","ODS5")

or $SHOW DEV /FULL sys$disk

Hein

Re: ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 17:27:55 GMT

Yes, all drives in question are ODS 5

Re: ODS 5 Case sensitive file names

Hoff — Thu, 03 Dec 2009 17:45:21 GMT

This can be perfectly normal, and local application software can explicitly request this particular behavior.

First, confirm that you're at current patches for OpenVMS Alpha V7.3-2 on both disks, and then confirm that processes on the second box haven't been set for full case sensitivity.

The application-level commands:

$ SET PROCESS/CASE_LOOKUP=SENSITIVE
$ SET PROCESS/CASE_LOOKUP=BLIND

There are NAM and NAML-level flags for this within RMS, as well.

Some related reading:

http://labs.hoffmanlabs.com/node/650

Re: ODS 5 Case sensitive file names

Hein van den Heuvel — Thu, 03 Dec 2009 18:34:34 GMT

There is also CASE sensitivity:

$ init/size=1000 mda1: hein
$ moun mda1: hein
$ set vol/struc=5 mda1:
$ cre/dir mda1:[hein]
$ set proc/parse=exten
$ copy /log nl: mda1:[hein]Test.Txt
%COPY-S-COPIED, NL: copied to MDA1:[hein]Test.Txt;1 (0 records)
$ copy /log nl: mda1:[hein]TEST.TXT
%COPY-S-COPIED, NL: copied to MDA1:[hein]Test.Txt;2 (0 records)
$ set proc /case=sensitive
$ copy /log nl: mda1:[hein]TEST.TXT
%COPY-E-OPENOUT, error opening MDA1:[hein]TEST.TXT; as output
-RMS-E-DNF, directory not found
-SYSTEM-W-NOSUCHFILE, no such file
$ copy /log nl: mda1:[HEIN]TEST.TXT
%COPY-S-COPIED, NL: copied to MDA1:[HEIN]TEST.TXT;1 (0 records)
$ dir MDA1:[HEIN]TEST.*

TEST.TXT;1

$ dir MDA1:[HEIN]T*.*

TEST.TXT;1
Test.Txt;2
Test.Txt;1

I really think that HELP SET PROC /PARSE and
HELP SET PROC /CASE chould refernce each other. They don't.

Hein.

Re: ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 19:15:07 GMT

I looked at the case on both boxes, it is set to Blind.

Here are some sample commands and what I get:

$ dir DA_TRAN*.001

Directory MUSKIE$DATA1:[TEST]

DA_TRANS.001;2 Da_Trans.001;2

$ dir da_tran*.001

Directory MUSKIE$DATA1:[TEST]

DA_TRANS.001;2 Da_Trans.001;2

Total of 2 files.

Re: ODS 5 Case sensitive file names

Hoff — Thu, 03 Dec 2009 19:24:49 GMT

>I looked at the case on both boxes, it is set to Blind

You are aware that the setting is process specific? That the setting that matters here is the setting of the application or of the process that created those files?

Re: ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 19:31:20 GMT

These files are created when a batch process executes a BACKUP command to pull them out of a Saveset from a different machine (kind of a file sync process between machines).

The only set process command that is done at the top of this DCL is set/process/priv=all

How can I determine what the default process settings are for batch jobs? I suppose I could modify the program for tonight to do a show process/all

Re: ODS 5 Case sensitive file names

Tschroeder — Thu, 03 Dec 2009 20:08:34 GMT

I checked the process that creates these files and it is running with Parse Style:Extended, Case Lookup: Blind

Re: ODS 5 Case sensitive file names

Hoff — Thu, 03 Dec 2009 20:37:19 GMT

This case has the ever so slight whiff of a BACKUP bug.

Are you current on your patches?

Can you verified the saveset restoration on another box?

Can you triy booting an V8.3 distro on a box, and run the BACKUP from there?

Can you replicate this with a saveset that you can post for folks to look at?

Re: ODS 5 Case sensitive file names

Brad McCusker — Thu, 03 Dec 2009 23:11:31 GMT

Maybe I missing the obvious, but, what exactly is the problem?

As others have said, this is not necessarily wrong when taken by itself:

Da_Trans.001;1
DA_TRANS.001;1

You said you can't recreate it. What have you done to recreate it? And how did you fail?

Brad McCusker
Software Concepts International
www.sciinc.com