Database - RAC/Scalability (MOSC)

MOSC Banner

RAC instance crash recovery and GRD

edited Jul 29, 2020 5:02AM in Database - RAC/Scalability (MOSC) 11 commentsAnswered

Hi

We have a question on the GRD during instance crash recovery

Based on our understanding, each RAC instance has a GRD that keeps metadata information about block ownership / role etc for blocks tied to that instance

So basically GRD of instance "A" would only have information about blocks that instance "A" is the master of. Correct?

If yes, during instance recovery we read that remastering of GRD takes places and surviving node updates its GRD with the information from the crashed instance GRD

We were wondering since the instance crashed and hence there is no GRD available for that instance anymore how does the surviving instance gets the GRD information that was in the crashed instance to synch its GRD with it?

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center