topic Re: DTSS in Operating System - OpenVMS

DTSS

djk — Tue, 16 Dec 2008 20:46:51 GMT

How do I determine if DTSS is running?

Re: DTSS

Steven Schweda — Tue, 16 Dec 2008 21:04:34 GMT

Perhaps:

show system /process = *dtss*

Somewhat crude:

ALP $ set time = 15:03
%SET-E-NOTSET, error modifying time
-SYSTEM-E-TIMENOTSET, time service enabled; enter a time service command to update the time

There are probably good ways, too.

Re: DTSS

H_Bachner — Tue, 16 Dec 2008 22:18:24 GMT

$ MC NCL SHOW DTSS STATE
should show you whether DTSS is defined at all (if not, you get an "entity class not supported" or similar message), and if, whether it is enabled (running).

This is at least true for the various incarnations of DECnet Phase V, DECnet/OSI and DECnet-Plus (different names for the same product across several versions). If you are using DECnet Phase 5 Extensions on (Open)VMS/VAX 5.x, I'm not sure how you'd exactly check for DTSS presence. Scanning SHOW SYSTEM output (as the previous post suggests) would probably help.

HTH,
Hans.

Re: DTSS

John Gillings — Tue, 16 Dec 2008 22:34:51 GMT

There are a number of logical names defined when DTSS is running. I have code that determines if DTSS is running by the existence of logical name DTSS$_SERVICE_ACTIVE in the system logical name table.

$ IF F$TRNLNM("DTSS$_SERVICE_ACTIVE").NES.""
$ THEN
...

You can find other useful things like the host it's synching from. See $ SHOW LOGICAL DTSS$*

You could also look for the existence of DTSS processes.

$ ctx = ""
$ temp = F$CONTEXT ("PROCESS", ctx, "PRCNAM", "DTSS$*","EQL")
$ IF F$PID(ctx).NES."" THEN (at least one DTSS$ process exists)

when finished, clean up context

$ IF F$TYPE(ctx) .eqs. "PROCESS_CONTEXT" THEN temp = F$CONTEXT ("PROCESS", ctx, "CANCEL")

Re: DTSS

djk — Wed, 17 Dec 2008 00:56:39 GMT

Good recommendations from all. Much thanks.