Monthly Archives: August 2014

A closer look at ASM rebalance, Part I: Disks have been added

This article is the first Part of the “A closer look at ASM rebalance” series: Part I: Disks have been added. Part II: Disks have been dropped. Part III: Disks have been added and dropped (at the same time). If … Continue reading

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Are ASM rebalance and preferred read working together?

Introduction: If I add disks into a diskgroup, then during the rebalance operation, ASM needs to read the data coming from the disks already part of the diskgroup to rebalance them on all the disks (including the new ones). Question: If I … Continue reading

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Simulate and Visualize the impact of the ASM preferred feature on the read IOPS and throughput

Suppose that you decided to put the ASM preferred feature in place because you observed that the read latency is too high on the farthest disk array (You can find how you can lead to this conclusion with the use case 3 into this … Continue reading

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