topic Re: Backup saveset to NFS in Operating System - OpenVMS

Backup saveset to NFS

B_Wilson — Fri, 20 May 2011 04:29:32 GMT

Hi All,

As per the topic, I'm trying to see if it is actually possible to perform an OpenVMS backup to an Linux NFS mounted share.

Currently, we have a daily backup to disk, then disk to tape configured. I'm hoping I can modify the script so that instead of sending to tape, I can send to a mounted Linux NFS share. This is so we don't have to re-init tapes every week, and so we can backup all systems with HP DP.

The backup script currently executes the following code
$ BACKUP/VERIFY/IGNORE=(LABEL,INTERLOCK)/MEDIA_FORMAT=COMPACT -
DKB100:[WFPROD...]*.*;* -
MKA500:'prod_saveset'.bck

What I would like to do is backup the saveset to a subdir in the NFS share instead of tape.

I thought the following would get me there:
$ BACKUP -
DKB100:[WFPROD...]*.*;* -
DNFS16:['nfs_dir']'prod_saveset'.bck

However my terminal is filled with messages like:

%BACKUP-E-OPENOUT, error opening DNFS16:[20110520]PROD20052011.BCK;1 as output
-RMS-E-FEX, file already exists, not superseded

For reference, the following vars are declared:
$ todays_saveset = f$cvtime(,,"day")+f$cvtime(,,"month")+f$cvtime(,,"year")
$ prod_saveset = "prod"+todays_saveset
$ nfs_dir = f$cvtime(,,"year")+f$cvtime(,,"month")+f$cvtime(,,"day")

Can someone point out whether this is actually possible or if I'm doing something wrong?

Cheers!

Re: Backup saveset to NFS

Steven Schweda — Fri, 20 May 2011 04:41:34 GMT

HELP BACKUP /SAVE_SET

[...]
You must specify the /SAVE_SET qualifier when the input or output
specifier is a BACKUP save set on a Files-11 disk.

/SAVE_SET is the default for a tape, but not
for a save set on disk. Without it, I'd
guess that BACKUP is trying to copy every
file to DNFS16:[20110520]PROD20052011.BCK;1,
which works only once.

Re: Backup saveset to NFS

Shriniketan Bhagwat — Fri, 20 May 2011 05:10:56 GMT

Hi,

For disk BACKUP /SAVE_SET qualifier is required. BACKUP does not recognize it a saveset file until and unless /SAVE_SET qualifier is specified. But for the tape /SAVE_SET qualifier is considered as default.

Regards,
Ketan

Re: Backup saveset to NFS

B_Wilson — Fri, 20 May 2011 05:57:43 GMT

Thanks guys,

Entered command...

$ BACKUP -
DKB100:[WFPROD...]*.*;* -
DNFS16:[20110520]prod20052011.bck /SAVE_SET

...and it is working beautifully. You have saved our department at least 1 hr a week :)

Cheers!

Re: Backup saveset to NFS

B_Wilson — Fri, 20 May 2011 05:58:25 GMT

See post above.

Re: Backup saveset to NFS

Steven Schweda — Fri, 20 May 2011 19:44:56 GMT

> For disk BACKUP /SAVE_SET qualifier is
> required. [...]

Yes, _IF_ you _WANT_ a save set. BACKUP can
also be used to copy files from place to
place, and, if the destination is a disk,
then that's what it will try to do by
default. If the destination is a tape (not
file-structured), then a default of /SAVE_SET
makes sense.