GALAXY-20 has been changed to include the following new
features:
o Alias Printers Support
o Adding the /CLUSTER-NODE switch to additional OPR commands
o The selective routing and receiving of remote OPR messages
These additions are described below.
1.0 ALIAS PRINTERS SUPPORT
It is now possible to refer to printers by aliases rather
than by their physical specifications. The following commands
have been added to support this feature:
o DEFINE ALIAS alias {alias | physical printer specification | null}
{/CLUSTER-NODE:cluster-node-name or "*"}
o SHOW ALIAS {alias | CLUSTER | DQS | LAT | LOCAL | physical printer
specification | null } {/CLUSTER-NODE: cluster-node-name or "*"}
1.1 The DEFINE ALIAS Command
The DEFINE ALIAS command allows an operator to uniquely
DEFINE, reDEFINE or unDEFINE alias names to local, DQS, LAT, and
CLUSTER printers. Once an alias is defined for a printer, that
printer may be specified solely by its alias. An example of the
DEFINE ALIAS command is:
OPR>DEFINE ALIAS FOO ? one of the following predefined alias names:
BAR BIN FOO
or unit number
or one of the following:
CLUSTER DQS LAT
or /CLUSTER-NODE:
or confirm with carriage return
1.1.1 Defining An Alias To A Printer Specification
The following command maps the alias FOO to the CLUSTER printer
specification of CLUSTER 1 NODE GIDNEY:
OPR>DEFINE ALIAS FOO CLUSTER 1 NODE GIDNEY
Page 2
Redefining an Alias
1.1.2 Redefining An Alias
The following reDEFINEs the alias FOO to alias BAR:
OPR>DEFINE ALIAS BAR FOO
This command changes the alias name from FOO to BAR. (I.e., BAR
is now mapped to the CLUSTER Printer 1 on node GIDNEY.) Note: If
BAR is a previously defined alias, then its previous definition
is removed since there can only be one alias name associated with
a printer specification.
To Undefine the alias BAR:
OPR>DEFINE ALIAS BAR
This command will unmap FOO's mapping to the CLUSTER Printer 1
for node GIDNEY.
NOTE
o It is possible to define an alias for a printer that
has not yet been STARTed or SET.
o Alias names are only known in GALAXY context, i.e.,
they are not known at the EXEC level.
1.1.3 Recommendations For System Manager
It is recommended that all alias to physical printer
specification mappings be defined at GALAXY startup by including
the appropriate DEFINE ALIAS commands in 7-SYSTEM.CMD
To avoid confusion, it is also recommended that all nodes in
a cluster maintain identical alias to printer mappings.
1.2 The SHOW ALIAS Command
The SHOW ALIAS command will display the alias to printer
specification mappings which have been previously defined. The
syntax of the command will include the following:
OPR>SHOW ALIAS
This shows all the current alias name to physical
specification mappings.
Page 3
The SHOW ALIAS Command
OPR>SHOW ALIAS {CLUSTER | DQS | LAT | LOCAL}
This shows all the current alias name to physical name
mappings for the specified printer type.
OPR>SHOW ALIAS FOO
This shows the printer specification which has been mapped
to FOO.
The SHOW ALIAS display will have the following format:
OPR>SHOW ALIAS
14:34:30 -- Alias Printer Mappings --
Local printers
Alias Unit
------ ----
FOO 0
BAR 2
DQS printers
Alias DQS queue name Node
------ ------------------------------- ------
XEROX1 TOPS$LN03 GALLO
XEROX2 LVD$LN03 MED
XEROX3 SI$BENSON MRSVAX
LAT PORT printers
Alias Port name Server
------ ---------------- ------
PLAT1 24004_LN03A LAT1
PLAT2 24004_LN03B LAT70
PLAT3 LN03 LAT71
LAT SERVER printers
Alias Service name Server
----- ------------ ------
SLAT LN03_4 LAT_1
2.0 ADDING THE /CLUSTER-NODE SWITCH TO ADDITIONAL OPR COMMANDS
The following commands now have the /CLUSTER-NODE: switch
which allows them to be executed on a remote node in the cluster:
ABORT
ALIGN PRINTER
BACKSPACE PRINTER
CANCEL
Page 4
ADDING THE /CLUSTER-NODE SWITCH TO ADDITIONAL OPR COMMANDS
CLOSE LOG
CONTINUE
DEFINE ALIAS
DISABLE (except for DISABLE OUTPUT-DISPLAY)
DISMOUNT
ENABLE (except for ENABLE OUTPUT-DISPLAY)
FORWARDSPACE
HOLD
IDENTIFY
MODIFY
MOUNT
NEXT
RELEASE
REPORT
REQUEUE
RESPOND
ROUTE
SEND
SET (excluding SET ONLINE)
SHOW (excluding SHOW CONTROL-FILE and SHOW TIME)
SHUTDOWN (excluding SHUTDOWN NODE)
START (excluding START NODE)
STOP
SUPPRESS
SWITCH
UNDEFINE
Page 5
THE SELECTIVE ROUTING AND RECEIVING OF REMOTE OPR MESSAGES
3.0 THE SELECTIVE ROUTING AND RECEIVING OF REMOTE OPR MESSAGES
It is now possible to selectively route messages from one
node in a cluster to another node in that cluster. Furthermore,
an operator can selectively enable or disable to receive messages
that are routed from a remote node in the cluster to that
operator's node.
The following commands have been added in support of this
feature:
o ENABLE/DISABLE BROADCAST-MESSAGES message-type NODE cluster-node-name
or * {/CLUSTER-NODE: cluster-node-name or *}
o SHOW BROADCAST-MESSAGES {NODE cluster-node-name or *}
{/CLUSTER-NODE: cluster-node-name or *}
o ENABLE/DISABLE OUTPUT-DISPLAY message-type {NODE cluster-node-name or *}
o SHOW OPERATOR/ALL {/CLUSTER-NODE:cluster-node-name or *}
The ENABLE/DISABLE BROADCAST-MESSAGE commands enable or
disable the sending of the specified messages to the indicated
remote cluster node or to all remote nodes if "*" was specified.
The SHOW BROADCAST-MESSAGES command shows which messages
have been enabled or disabled to be sent to the indicated remote
cluster node or to all remote cluster nodes if "*" was specified
or if the NODE keyword is missing.
The ENABLE/DISABLE OUTPUT-DISPLAY commands now include the
NODE keyword. The NODE keyword indicates that the display of the
specified messages from the indicated node, or all nodes if "*"
was specified, are to be enabled or disabled.
The SHOW OPERATOR command now has the /ALL switch which
indicates for each message type whether the display of that
message type is enabled or disabled. If an operator has enabled
or disabled message displays for messages from remote nodes in
the cluster, these are also shown.
It should be noted that for a message to be displayed from a
remote node in the cluster, the command ENABLE BROADCAST-MESSAGE
for that message type must be given on that remote node. In
addition, the operator on the local node must give the ENABLE
OUTPUT-DISPLAY command for that message type indicating the
remote node as the NODE keyword argument.
The intent of the broadcast messages feature is to allow an
operator, logged-in to one node in a cluster, to see messages
being generated on remote nodes in that cluster. For example, in
a two-node cluster with nodes FOO and BAR, assume that an
operator is logged in on node FOO and wishes to see all messages
generated on node BAR. The following commands could be used:
Page 6
THE SELECTIVE ROUTING AND RECEIVING OF REMOTE OPR MESSAGES
OPR>ENABLE BROADCAST-MESSAGES ALL-MESSAGES NODE FOO /CLUSTER-NODE:BAR
OPR>
14:07:02 Received message from BAR::
14:06:48 --Broadcast message display modified--
OPR>ENABLE OUTPUT-DISPLAY ALL-MESSAGES NODE BAR
OPR>
14:07:44 --Output display for OPR modified--
OPR>SHOW BROADCAST-MESSAGES/CLUSTER-NODE:BAR
OPR>
14:08:29 Received message from BAR::
14:08:15 -- Broadcast Messages --
FOO Message type
------ ------------
Ena BATCH-MESSAGES
Ena CARD-PUNCH-MESSAGES
Ena CARD-READER-INTERPRETER-MESSAGES
Ena FILE-RETRIEVAL-MESSAGES
Ena MOUNT-MESSAGES
Ena PAPER-TAPE-PUNCH-MESSAGES
Ena PLOTTER-MESSAGES
Ena PRINTER-MESSAGES
Ena READER-MESSAGES
Ena USER-MESSAGES
Ena BUGCHK-MESSAGES
Ena BUGINF-MESSAGES
Ena DECNET-EVENT-MESSAGES
Ena DECNET-LINK-MESSAGES
Ena SYSTEM-MESSAGES
Ena LCP-MESSAGES
Ena NCP-MESSAGES
OPR>SHOW OPERATORS/ALL
OPR>
14:08:57 -- Operators --
Node Type Terminal Job User
----------- ------ -------- --- ----------------------------
FOO system 443 88 JROSSELL
FOO BAR Message type
------ ------ ------------
Ena Ena BATCH-MESSAGES
Ena Ena CARD-PUNCH-MESSAGES
Ena Ena CARD-READER-INTERPRETER-MESSAGES
Ena Ena FILE-RETRIEVAL-MESSAGES
Ena Ena MOUNT-MESSAGES
Ena Ena PAPER-TAPE-PUNCH-MESSAGES
Ena Ena PLOTTER-MESSAGES
Ena Ena PRINTER-MESSAGES
Ena Ena READER-MESSAGES
Ena Ena USER-MESSAGES
Ena Ena BUGCHK-MESSAGES
Ena Ena BUGINF-MESSAGES
Page 7
THE SELECTIVE ROUTING AND RECEIVING OF REMOTE OPR MESSAGES
Ena Ena DECNET-EVENT-MESSAGES
Ena Ena DECNET-LINK-MESSAGES
Ena Ena SYSTEM-MESSAGES
Ena Ena LCP-MESSAGES
Ena Ena NCP-MESSAGES
**** SEMI-OPR is enabled ****