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Believe scan commands must be run by root. &nbsp;At minimum the &quot;scan update&quot;.
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Believe scan commands must be run by root.  At minimum the "scan update".

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During our recent installation/configuration<wbr /> of pushing agents out for OEM Cloud 12c, my team somehow deleted or removed (2) of our Scan_Listeners. &nbsp;Prior to our mishap with OEM Cloud, we had all (3) Scan_Listeners:<br />
<br />
Scan_Listener01<br />
Scan_Listener02<br />
Scan_Listener03<br />
<br />
Now we are only left with a single, Scan_Listener01. Does this seem appropriate to recreate:<br />
<br />
[grid@mynode]$ srvctl add scan_listener -netnum 2 -listener testscan &nbsp;-endpoints TCP:1528 <br />
&nbsp;<br />
[grid@mynode]$ srvctl config scan_listener -netnum 2 SCAN Listener TESTSCAN_SCAN1_NET2 exists. Port: TCP:1528 Registration invited nodes: Registration invited subnets: <br />
&nbsp;<br />
[grid@mynode]$ srvctl start scan_listener -netnum 2 <br />
&nbsp;<br />
[grid@mynode]$ srvctl status scan_listener -netnum 2 SCAN Listener TESTSCAN_SCAN1_NET2 is enabled SCAN listener TESTSCAN_SCAN1_NET2 is running on node SalesSrv146 <br />
<br />
I believe these scan listeners are initially created during the Grid Infrastructure installation.
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During our recent installation/configuration of pushing agents out for OEM Cloud 12c, my team somehow deleted or removed (2) of our Scan_Listeners.  Prior to our mishap with OEM Cloud, we had all (3) Scan_Listeners:

Scan_Listener01
Scan_Listener02
Scan_Listener03

Now we are only left with a single, Scan_Listener01. Does this seem appropriate to recreate:

[grid@mynode]$ srvctl add scan_listener -netnum 2 -listener testscan  -endpoints TCP:1528 
 
[grid@mynode]$ srvctl config scan_listener -netnum 2 SCAN Listener TESTSCAN_SCAN1_NET2 exists. Port: TCP:1528 Registration invited nodes: Registration invited subnets: 
 
[grid@mynode]$ srvctl start scan_listener -netnum 2 
 
[grid@mynode]$ srvctl status scan_listener -netnum 2 SCAN Listener TESTSCAN_SCAN1_NET2 is enabled SCAN listener TESTSCAN_SCAN1_NET2 is running on node SalesSrv146 

I believe these scan listeners are initially created during the Grid Infrastructure installation.

Oracle 12c: Rre-Create Scan Listeners

Oracle is an object-relational database management system. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java, but it also includes support for C and C++. Oracle also has its own enterprise modules and application server software.