Q

Pros/cons of an Oracle 8i standby server?

I am presenting available options to IT management for implementing a disaster recovery plan. I've been asked to document the pros and cons of an Oracle 8i standby server. Can you help?
The pros are:

  • Easy setup
  • Separate databases protect against Oracle errors
  • It's free
  • Lag time before the standby is updated could allow for recovery from user's error (if a user drops a table, you could get it back from the other instance).

The cons are:

  • The lag time allows for the loss of database of the standby database (the standby database is only as good as the last log applied there)
  • There is only one failover possible (you can't fail back)
  • No transparent application failover (jobs/queries would have to be restarted on the standby database)
  • Manual reconfiguration of the standby database for certain events
This was first published in September 2002

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