You can find the SAP system is up and running via available.log. From there also, you can know the duration of system is up or down.
OS level
1. Login to OS level, go to work directory.
/usr/sap/SID/JCxx/work - JAVA /usr/sap/SID/DEVBMGSxx/work - ABAP
2. Find and display available.log file.
# more available.log Unavailable 15.09.2010 20:37:19 - 15.09.2010 21:19:20 Available 15.09.2010 21:20:20 - 16.09.2010 10:31:32 Unavailable 16.09.2010 10:32:32 - 16.09.2010 10:54:32 Available 16.09.2010 10:55:32 - 16.09.2010 15:20:35 Unavailable 16.09.2010 15:28:32 - 16.09.2010 15:32:33 Available 16.09.2010 15:33:33 - 21.09.2010 10:36:26 Unavailable 21.09.2010 10:37:26 - 24.09.2010 12:18:34 Available 24.09.2010 12:19:35 - 09.10.2010 09:47:11
SAP Level
1. You can also view the available.log from SAP level, which via transaction code AL11. Select DIR_INSTANCE and go to work directory. Double click on the available.log to view the file.
Note:
Available – Time duration of SAP system running.
Unavailable – Time duration of SAP system not running.
