Defining a Logical Spool Server
Procedure
1. Choose Tools → CCMS → Spool →Spool Administration (transaction SPAD).
1. On the Devices/server tab page, choose the Spool Servers pushbutton.
The list shows all real spool servers in your SAP System as well as any logical servers you have defined. The color-coding in the list shows the status and availability for output-processing of each server. For an explanation of the status coding, see Spool Server Hierarchy Display.
2.
If you are not in change
mode, switch to this mode by choosing 
Change.
You can now do the following:
¡ You can create a new spool server by choosing Spool Server → Create.
¡ You can use an existing spool server as a template.
To do this, click the entry for the spool server that is to be used as a template, and choose Spool Server → Create Using Template.
3. Define the server’s attributes.
To do this, fill out the desired fields and select the desired options.
The following example shows the definition of a logical production server:
Server Name: Enter a server name in the shorter field and a description of the server in the longer field.
Server Class: Choose a suitable entry from the input options for the server class field, such as production printing, mass printing, and so on. The classification helps you to realize your planned printing architecture, that is, to assign newly defined output devices to the corresponding spool server. If you specify the spool server in a device definition, the spool system compares the classification of the output device to the classification of the server.
If they do not match, then the spool system warns you.
If you are preparing to assign a mass printer to a time-critical production server, then the spool system warns you of this disparity.
Logical Server: Select Logical Server and choose enter.
In the Mapping field, specify the real or logical server to which this logical server should refer.
The spool system "maps" the logical server name to the server in Mapping. Because this "mapping" is recursive, you can specify either a real server or another logical server.
Alternative Server: If appropriate, enter the name of the logical or real server in the Alternative Server field.
Should the server you are defining be inactive or not have a spool work process, then the SAP System uses this specification to find another spool server to carry out output processing.
Allow Load Balancing: If you activate load balancing, the load can be distributed between the spool server and the alternative server if the spool server is overloaded.
If you activate load balancing, it is possible that requests are no longer printed in the order in which they were created.
4. Save the spool server definition and choose Back to return to the server display. Here, you can use the server display functions to see how your servers are linked to one another through the Mapping and Alternate server fields.
For help interpreting and manipulating the display, see Interpreting the Spool Server Display.
Result
If you have defined a logical server, you now can enter it as a spool server anywhere in the spool system, for example, in device definitions. Using logical servers in place or in addition to real servers offers benefits such as load balancing and use of a standardized printing architecture across SAP Systems.
See also:
