Verify SAP Installed as Single Stack or Dual Stack

Single Stack

• In AL11 (central instance), no j2ee directory (DIR_INSTANCE) in /usr/sap/xxx/DEVBMGSxx/

Dual Stack

• In AL11 (central instance), j2ee directory (DIR_INSTANCE) is in /usr/sap/xxx/DEVBMGSxx/j2ee