[mod.computers.vax] MAIL and Clusters

WARNOCK@clemson.CSNET.UUCP (01/31/87)

We have an 8600 and 8650 clustered.  When a user on one node sends VMS MAIL to
a user on the other node, the recipient is NOT notified... (New mail on node
NODE from USER). Anyone know why ? 

Thanks again !

Todd Warnock
Clemson University
CSnet:	Warnock@Clemson.CSnet
BITnet:	Warnock@Clemson

ROY@gmr.com.UUCP (02/03/87)

>We have an 8600 and 8650 clustered.  When a user on one node sends VMS MAIL to
>a user on the other node, the recipient is NOT notified... (New mail on node
>NODE from USER). Anyone know why ? 

Check the logical MAIL$SYSTEM_FLAGS.  There are different setting it can 
have to (1) not use DECNET between nodes in a homogeneous cluster,(2) notify
both nodes of new mail (homogeneous cluster, usually), and (3) Add a time stamp
to the notification that is printed on the screen.  This is described in the 
MAIL utility manual, pages MAIL-14 and MAIL-15.

Parameters
----------
1	Bypasses DECNET between nodes in cluster
2	Notifies recipient of new mail on all nodes in cluster
4	Time stamp in notification message

We use:

$ define/sys/exec MAIL$SYSTEM_FLAGS 6

Since we want mail to go through DECnet for some of our other mail hooks.

Lynette Roy
GM Research Labs
<ROY@GMR.COM>

SYSTEM@CRNLNS.BITNET.UUCP (02/03/87)

Todd,
 
New mail notification is NOT by default sent to all cluster cpus.
There is an undocumented flag that will cause that to happen:
 
 $ DEFINE/SYSTEM/EXEC MAIL$SYSTEM_FLAGS 7
 
Selden E. Ball, Jr.
 
Cornell University                 NYNEX: 1-607-255-0688
Laboratory of Nuclear Studies     BITNET: SYSTEM@CRNLNS
Wilson Synchrotron Lab              ARPA: SYSTEM%CRNLNS.BITNET@WISCVM.WISC.EDU
Judd Falls & Dryden Road          PHYSnet/HEPnet/SPAN:
Ithaca, NY, USA  14853             LNS61::SYSTEM = 44283::SYSTEM (node 43.251)

S211KENO@HTIKHT5.BITNET.UUCP (02/03/87)

> We have an 8600 and 8650 clustered.  When a user on one node sends VMS
> MAIL to a user on the other node, the recipient is NOT notified...
> (New mail on node NODE from USER). Anyone know why ?
 
Because the user-specified address probably does not include a node-name.
(address NODE::USER will have the desired effect but is expensive).
However, defining MAIL$SYSTEM_FLAGS is much more efficient:
 
$ DEFINE/SYSTEM/EXEC  MAIL$SYSTEM_FLAGS  2  on both nodes
 
See Mail Utility Reference Manual page 14
-----------
Kees.

oberman@LLL-ICDC.ARPA.UUCP (02/03/87)

>We have an 8600 and 8650 clustered.  When a user on one node sends VMS MAIL to
>a user on the other node, the recipient is NOT notified... (New mail on node
>NODE from USER). Anyone know why ? 

It sounds suspiciously like you have two copies of SYS$SYSTEM:VMSMAIL.DAT.
To keep the mail system happy if you have a cluster it works best to have
one copy of the VMSMAIL.DAT file in SYS$COMMON:. I also highly recommend
the use of DECnet aliases for clusters with common SYSUAFs.

						R. Kevin Oberman
						LLNL
						arpa: oberman@lll-icdc.arpa
						(415) 422-6955
------

DCOTTLER@rca.com.UUCP (02/03/87)

>We have an 8600 and 8650 clustered.  When a user on one node sends VMS MAIL to
>a user on the other node, the recipient is NOT notified... (New mail on node
>NODE from USER). Anyone know why ? 

You need to tell VMS-MAIL that it is a homogeneous cluster by defining 
the logical name MAIL$SYSTEM_FLAGS on each member of the cluster.

Use the command
	$ DEFINE /SYSTEM /EXEC MAIL$SYSTEM_FLAGS 7

The documentation as to how the flags are interpreted is in the MAIL 
Utility Ref.  In the VMS V4.4 doc set, see page 14 "System Management 
and Mail".


				- Dan Cottler, <dcottler@rca.com>
				  RCA Advanced Technology Laboratories
				  Moorestown, NJ

LEICHTER-JERRY@YALE.ARPA.UUCP (02/04/87)

    New mail notification is NOT by default sent to all cluster cpus.
    There is an undocumented flag that will cause that to happen:

     $ DEFINE/SYSTEM/EXEC MAIL$SYSTEM_FLAGS 7

The above is correct with one exception:  MAIL$SYSTEM_FLAGS IS documented.
See the section "System Management and MAIL" in the MAIL reference manual,
which explains the individual bits you are setting when you use the value
7 above, and what they do.  (That section, and several others, should be
read by system managers who have to deal with user mail problems - i.e., ALL
of them!)
							-- Jerry
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