Thursday , March 28 2024

How To Increase ASM Rebalance Processing Speed

 

The ARBn background process starts the rebalance process automatically when you delete or insert a disk from the ASM disk groups. This process is completed in a much shorter time when you do it in parallel.

If no power limit is specified in Disk drop or add operation, it will perform operations according to asm_power_limit parameter.

We can see rebalance from the v$asm_operation (gv$asm_operation for RAC) view.

You can see the parallellism value in the POWER column.

 

When we increase the power limit value of the related disk group as follows, the operations will be completed in a shorter time.

 

When we query again;

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