openVMS V8.3 installation with ODS-5 & hard-links

[nimrod53]

Hi,

During the successful V8.3 installation I have chosen to retain ODS-2 but after the installation has completed, I would like to try ODS-5 with hardlinks instead.

Is it possible to run some script/utility just to convert the ODS-2 to ODS-5 without having to redo the entire V8.3 installation again.

thks

[Steven Schweda]

For the basic ODS5 part:

SET VOLUME /STRUCTURE_LEVEL = 5 SYS$SYSDEVICE

You may need to read your own HELP to see
how to get the hard links enabled.

[Steven Schweda]

Or perhaps not.

SET VOLUME -
/VOLUME_CHARACTERISTICS = [NO]HARDLINKS -
SYS$SYSDEVICE

I guess that it's older than I remembered, as
I seem to have it at VMS V7.3-2.

I don't immediately see any DCL to tell you
how it's set, however.

[Steven Schweda]

Hmmm. I seem to have more than _my_ HELP
suggests:

alp $ write sys$output -
f$getdvi( "dka100:", "HARDLINKS_SUPPORTED")
TRUE

[Karl Rohwedder]

Beware, that for a change of the structure, the disk must be mounted privately, so I assume, that for the systemdisk you have to boot the CDROM and do it from the DCL prompt.

regards Kalle

[Robert Brooks_1]

Hmmm. I seem to have more than _my_ HELP
suggests:

alp $ write sys$output -
f$getdvi( "dka100:", "HARDLINKS_SUPPORTED")
TRUE

--------

Yeah, I think that I added dvi$_hardlinks_supported for V8.2, and I always try to backport as much as possible. I'm not sure which SYS kit in which it appeared.

My longterm goal is to bring back all the item codes added for V8.3 to V7.3-2; they'll likely appear in the last SYS and DCL kits for V7.3-2, as V7.3-2 goes off "standard" support at the end of the calendar year.

Since HELP files are not updated, there's no evidence that it's there . . .


-- Rob

[nimrod53]

I would have thought the DCL option 7 under the installation CD will have limited functionality (if I could recall from the earlier VMS versions) where only standalone backups could be executed..could ODS-5 structure convert be done with a mount/for sys$sysdevice..?

>Beware, that for a change of the structure, >the disk must be mounted privately, so I >assume, that for the systemdisk you have to >boot the CDROM and do it from the DCL prompt.

[Steven Schweda]

Standalone BACKUP on VAX allowed only BACKUP
to be run. This is different. (As I recall,
even a modern VMS VAX CD-ROM offers more than
just standalone BACKUP, although that's the
default.)

[Guy Peleg]

On Alpha & IA64 booting from the installation CD provides full functionality of the O/S. This is different than VAX. VAX's standalone environment could only handle the BACKUP command.

To change your system disk to ODS-5, boot
the O/S installation CD, I think that
the menu changed with VMS V8.3 and now
executing DCL commands is option 8 and not
7 but it is not important....then:

$$$ MOUNT/OVER=ID SYSTEM_DISK
$$$ SET VOLUME/STRUC=5 SYSTEM_DISK

Guy Peleg
BRUDEN-OSSG
http://www.brudenossg.com

[nimrod53]

Thanks for the pointer. How do I specify "with hard-links" in the same DCL command line?

Rdgs

[Guy Peleg · Accepted solution]

...Just add

SET VOLUME /VOLUME_CHARACTERISTICS =
HARDLINKS

Guy