
Thanks All!
Crack above error after couple of days! Tried to clear config cache using https://sathiya.io/sharepoint/powershell-sharepoint/clear-sharepoint-2013-config-cache.php but no luck.
So validated database view status and created view manually from working content database which got corrupted some reason to sort Mount-SPContentDatabase issues. Then ran below psconfig.exe command to fix patch issues;
psconfig.exe -cmd helpcollections -installall -cmd secureresources -cmd services -install -cmd installfeatures -cmd applicationcontent -install -cmd upgrade -inplace b2b -force -wait
Error:
10/27/2020 11:30:53 13 INF SyncUpgradeTimerJob: SPTIMERV4 is not running anymore. Return -1.
10/27/2020 11:30:53 13 ERR The exclusive inplace upgrader timer job failed.
Solution:
Tips: In case SPTimerV4 service error occurred then manually start SharePoint admin service and SharePoint timer service during Upgrading 6 or 9 stage to avoid unexpected service start exceptions;
Error:
Exception: System.Data.SqlClient.SqlException (0x80131904): The operation cannot be performed on database "WSS_UsageApplication" because it is involved in a database mirroring session or an availability group. Some operations are not allowed on a database that is participating in a database mirroring session or in an availability group.
ALTER DATABASE statement failed.
Solution:
Note: If mirroring enabled in SQL server end make sure you have removed WSS_UsageApplication database from mirroring to complete configuration wizard.