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AHA! Moments Series


In this series, I will discuss AHA! Moments I experienced while solving technical challenges. Each blog in this series will contain this section followed by Format of this blog and then finally details on AHA! Moment.


The format of this blog will be as follows:

AHA! Moment: This will explain the lesson learnt. I will try to keep this very short. This would be a “do’s/don’t’s” type of statement.

+Why: This section will give details why the moment was AHA! moment.</p><p>Example:+ I will give an example that helped me experience AHA! Moment.

AHA! Moment: +Why: </p><p>I tried installing second instance in Unix Server. /sapmnt/<SID>/profile was NFS mounted from CI server. After entering /sapmnt/<SID>/profile for profile directory’s name while running SAPINST, I received this error:</p><p>!|height=408|alt=image|width=663|src=|border=0!</p><p> I reviewed DEFAULT profile and the parameter rdisp/msserv_internal was already active. Profile directory had appropriate permissions and ownerships. I reviewed sapinst.log and ran truss command to see which file SAPINST was trying to read. truss output showed that it was trying to read /usr/sap/<SID>/SYS/profile/DEFAULT.PFL and not /sapmnt/<SID>/profile/DEFAULT.PFL. Because SAPINST couldn’t read DEFAULT.PFL, it assumed the parameter was not set.</p><p>Example: +

1) Dialog instance with system number 00 is already running for SID QS1

2) I tried to install second instance with system # 01 for SID BWQ

I started SAPINST. selected SAP Netweaver 2004s Support Release 2 -> Additional Life-Cycle Tasks –> Application Server –> Oracle –> Dialog Instance. In the following screen, I selected Custom. I typed /sapmnt/BWQ/profile for Profile Directory’s name in next screen. I received the error mentioned in the screenshot above. truss command’s output showed error: No such file or directory as shown below:


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  • Thank you very much for writing this error to your blog.
    I’ve been looking at and thousands of other places without solved.

    And finally, I have learned a golden rule in the sap of the facilities of problems, to see the sapisnt.log … 🙂
    Thank you very much again.

    Best regards from Madrid (Spain)

    • “But why would you want to uninstall SAP ?”

      I’ve found that DI (aka NWDI) instances and the instances connecting to them are particularly sensitive to problems with ‘reinstallation’.  I find virtualisation and backups are useful 🙂 It’s often easier (sometimes, anyway) to restore the disk image(s) to the state they were in immediately prior to your install, rather than try to uninstall.