how to know whether a system is single stack or dual stack?

[Former Member]

hello all.

how can you notice by seeing the system whether it is only abap stack? or only java stack? or dual stack?

[Former Member · Accepted solution]

Hi,

1. SM51 - On dual stack systems you'll see J2EE amongst the Message Types (see image below, taken from a NetWeaver PI 7.1 dual stack system). Purely ABAP systems won't have it listed.

1. SMICM - Check the list of services in transaction SMICM (menu: Goto --> Services) - dual stack systems will have the J2EE services listed too (look for P4 and IIOP in particular). There will also be an AS Java menu in SMICM on ABAP+Java systems.
2. Profile parameters - ABAP+Java systems will have J2EE-specific parameters in their start/instance profiles (for example, rdisp/j2ee_start).

Thanks

Rishi Abrol

[Former Member]

Hello Tee,

Apart from other one mentioned above  you can  check in SM51. If its dual stack then you'll see J2EE too in the  SAP Instance status.

Regards,

Mudasir.

[hasanajsh]

Hello,

Dual Stack:

In tx AL11 (SAP Directories), under DIR_INSTANCE there will be j2ee directory.

Single Stack:

In tx AL11, under DIR_INSTANCE there will not be j2ee directory.