Oracle has changed the License Documentation that Standby CDB can be open in Read Only without using Active Data Guard license

Oracle has changed the License Documentation that Standby CDB can be open in Read Only without using 
Active Data Guard (ADG) license

link to the official Active Data Guard License Document

https://docs.oracle.com/en/database/oracle/oracle-database/18/dblic/Licensing-Information.html#GUID-AB56CEE3-955E-4E56-8B44-6075E889C283

Oracle Exadata Storage Server Patch (12.2.1.1.7) encountered bugs - 'CELLSRV' Restarting On Exadata x4-2 and Exadata x6-2

Oracle Exadata Storage Server Patch (12.2.1.1.7) encountered bugs - 'CELLSRV' Restarting

We have encountered bugs ('CELLSRV' Process restarted couple of times across the Exadata Storage Servers) after applying 
Oracle Exadata Storage Server Patch (12.2.1.1.7) on Oracle Exadata x4-2 (Quarter Rack) and Oracle Exadata x6-2 (Half Rack).

Finding INCIDENT Info in Exadata Storage Server 

Login to Oracle Exadata Storage Server and use "ADRCI"



Viewing Alertlog file in Exadata Storage Server



Raised SR and confirmed with following BUGs in Oracle Exadata Storage Server (12.2.1.1.7)



Required ACFS Driver Updates

Install updated ACFS drivers before updating Exadata database servers to 18.1.5.0.0 or 12.2.1.1.7. Note the following:


1. Updated ACFS drivers are needed for the most efficient CVE-2017-5715 mitigation to be in place once 18.1.5.0.0 or 
   12.2.1.1.7 is installed.
2. Updated ACFS drivers are needed whether or not ACFS is in use.
3. In an OVM configuration dom0 may be updated to 18.1.5.0.0 or 12.2.1.1.7 before the ACFS drivers are updated in domU.
4. Updated drivers are delivered via an ACFS patch that is installed in the grid infrastructure home. 
   
GI Home guidelines - The following patches are available at publication time:

1. Grid infrastructure 18.2 and 12.2.0.1 - Patch 27463879
2. Grid infrastructure 12.1.0.2.180417 - Patch 27942938 (merge patch containing fixes for bug 27463879 and bug 23312691)
3. Grid infrastructure 12.1.0.2.180116 - Patch 27942821 (merge patch containing fixes for bug 27463879 and bug 23312691)

How to check ACFS drivers installed based on Grid Infrastructure Version

1. Login as 'grid' user and check the patches


2. Check "ACFS" drivers Information on Oracle Exadata Compute Nodes


Note: Please refer for more details : Oracle Exadata Database Machine Patch Availability Document for CVE-2017-5715, 
CVE-2017-5753, and CVE-2017-5754 (Doc ID 2356385.1)

Hope helps.....