💿 Oracle Database Administration – Automatic Storage Management (ASM)
20 questions · 15 min timer · Explanations included · Free
ASM replaces the filesystem and the volume manager with something Oracle controls directly. The payoff is online storage changes; the cost is that the failure model is now yours to understand.
What this quiz covers
- Disk groups and failure groups — how redundancy is actually achieved
- External, normal and high redundancy — what each survives
- Striping — how ASM distributes extents and why
- Rebalance — adding and removing disks with no downtime, and what happens during it
- Preferred read failure groups — reading locally in a stretched cluster
- ASM metadata — what it stores and why losing it matters
- ASM in RAC — the configuration decisions specific to clustered deployments
- Monitoring — the tools that give real visibility
Common mistakes
- Putting mirrored copies in the same failure group, which defeats the redundancy entirely
- Assuming external redundancy is safe because the array handles it — it is, until it isn’t
- Treating rebalance as instant rather than a throttled background operation
Twenty questions below, each with an explanation.
