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HP0-J73 · Question #321
HP0-J73 Question #321: Real Exam Question with Answer & Explanation
The correct answer is D: Replication link bandwidth. For HP StoreOnce VSA deployments, replication link bandwidth is the component that most significantly constrains backup and restore performance.
Basic Design and Sizing of HP Storage Solutions
Question
When planning an HP StoreOnce VSA solution, which component can significantly impact backup and restore performance?
Options
- ADatastore layout
- BNumber and type of disk
- CSupervisor type
- DReplication link bandwidth
Explanation
For HP StoreOnce VSA deployments, replication link bandwidth is the component that most significantly constrains backup and restore performance.
Common mistakes.
- A. Datastore layout affects the underlying hypervisor disk I/O patterns but is not the dominant performance constraint for a network-dependent virtual appliance like StoreOnce VSA.
- B. The number and type of disk influences raw storage capacity and sequential I/O for the datastore, but the network path is typically the binding bottleneck for VSA backup throughput.
- C. Supervisor (hypervisor) type introduces some virtualization overhead, but this overhead is minor compared to the effect of replication link bandwidth on end-to-end backup and restore performance.
Concept tested. HP StoreOnce VSA backup performance - replication link bandwidth impact
Reference. https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c03837099
Topics
#StoreOnce VSA#backup performance#replication bandwidth#capacity planning
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