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Known issues – Database Startup Fail or Hang (Doc ID 1683703.1)

Last updated on AUGUST 23, 2021

Applies to:

Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version to [Release 8.1.7 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.


 To quickly check some of the possible causes and solution for Database Startup failure / hang issues




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In this Document
 Basic Concepts
 Issues Reported in Nomount Phase
  Insufficient Resources
 Incorrect Permissions
 Issues Reported in Mount Phase
 Issues Reported in Open Phase
 Troubleshooting tips
 OS Process Tracing

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