TS/MP 2.5 System Management Manual

Table 15 NonStop TS/MP Process High-PIN and Low-PIN Support (continued)
LINKMONPATHCOMPATHMONOperation
YesN.A.Yes, when requestors are
named
Service high-PIN requestors
YesYesYesOpen a high-PIN process
N.A.N.A.YesCreate a high-PIN process
N.A.YesYesCan be created by a
high-PIN process
By default, PATHCOM runs at a high PIN.
By default, the PATHMON process runs at a high PIN. The PATHMON process can create server
processes at high PINs, if the following conditions are met:
• The HIGHPIN option is set to ON for the object. (The default value is OFF.)
• The HIGHPIN option is d in the object file.
• There is a high PIN available.
Application Conversion Guidelines
Pathway applications originally developed for use on C-series systems can generally run at low
PINs without code change or recompilation. You might need to make the following change in your
initialization files, however: if you use a default subvolume name in a file name that contains the
volume name, include a subvolume specification in the file name.
To run at a high PIN, a Pathway requestor or server program must call selected D-series operating
system procedures and use HIGHPIN compile and bind options that allow the program to run at
a high PIN.
Additional considerations specific to the PATHMON environment include the following:
• Process names for servers must follow the C-series representation of a dollar sign ($) followed
by one to four alphanumeric characters.
• Process names for PATHCOM and the PATHMON process must follow the Cseries
representation as follows:
◦ If the name will be used across a network, a dollar sign ($) followed by one to four
alphanumeric characters.
◦ If the name will not be used across a network, a dollar sign ($) followed by one to five
alphanumeric characters.
• A process must run named if it runs at a high PIN and opens the PATHMON process. You
can use the ?RUNNAMED compiler directive to ensure that a process runs named.
If your environment includes Pathway/iTS, see the Pathway/iTS System Management Manual.
For more information about converting your applications, see the Guardian Application Conversion
Guide.
326 Migration Information