Monday, December 23, 2019

Oracle - Alternate Destinations, FRA, and balancing 2 destinations

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My previous post was on using Groups/Priorities when specifying an alternate destination for sending Redo to a remote destination. You c...
Thursday, December 19, 2019

ZDLRA alternate redo destination replaced with Groups/Priority in 12.2

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Alternate destination is depreciated in 12.2 for remote locations. This diagram shows the use of an alternate destination for sending l...
Tuesday, November 26, 2019

Dataguard and LOG_ARCHIVE_MAX_PROCESSES

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Any DBA who has set up Dataguard has seen this diagram of how the sending of logs to standby database works. What I wanted to go throu...
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Monday, October 21, 2019

Oracle Active Dataguard - More than just a read-only copy.

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NOTE: I updated this on 1/16/20 with additional information. Anyone that knows me, knows I'm a stickler for properly explaining ...
Tuesday, September 3, 2019

Oracle : Dataguard vs Backups

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For anyone that has been around Oracle databases for a long time, they should be familiar with MAA ( M aximum A vailability A ...
Tuesday, August 27, 2019

Oracle incremental merge and corruption

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In the last couple of years I have seen a lot of backup vendors (Commvault, Netbackup, Rubrik etc.) using the incremental merge backup...
Tuesday, July 30, 2019

Block change tracking and the ZDLRA (part 2)

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Oracle Block Change Tracking(BCT) and the ZDLRA One of the most commonly asked question I get when explaining how the ZDLRA works ha...
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