PSC PSC Disaster Recovery & Business Continuity 2 — Questions and Answers
Question 1: In Pure Storage, what is a 'pod' in the context of ActiveCluster replication?
- A network segment used for storage traffic
- A container object that holds volumes and snapshots that replicate synchronously between arrays (Correct answer)
- A snapshot policy grouping
- A backup target for CloudSnap
Correct answer: A container object that holds volumes and snapshots that replicate synchronously between arrays
A pod is a logical container for volumes and snapshots that is stretched across two arrays in ActiveCluster, ensuring all contents replicate synchronously.
Question 2: What Pure Storage feature sends FlashArray snapshots to public cloud storage (AWS, Azure, GCP) for long-term retention?
- ActiveDR
- ActiveCluster
- CloudSnap (Correct answer)
- SafeMode
Correct answer: CloudSnap
CloudSnap replicates FlashArray snapshots to object storage in AWS, Azure, or GCP, enabling offsite, cloud-based data retention.
Question 3: What is the maximum synchronous replication distance typically supported by Pure Storage ActiveCluster?
- 10 km with no latency limit
- 50 km fixed maximum
- 100 km fixed maximum
- Limited by round-trip latency (generally ≤5 ms RTT) (Correct answer)
Correct answer: Limited by round-trip latency (generally ≤5 ms RTT)
ActiveCluster's synchronous replication is constrained by the round-trip latency requirement (typically ≤5 ms), which translates to roughly 50–100 km depending on fiber path.
Question 4: Which CLI command is used to promote a replicated pod to read/write state during a Pure Storage ActiveDR failover?
- purearray failover
- purevolume restore --pod
- purepod promote (Correct answer)
- purehost failover
Correct answer: purepod promote
The 'purepod promote' command promotes a demoted or DR pod on the target array to an active, read/write state during failover.
Question 5: What happens to an ActiveCluster pod automatically when the primary site loses connectivity and the Mediator grants quorum to the secondary site?
- Data is lost and the pod must be recreated
- The pod is promoted at the secondary site and becomes read/write without manual intervention (Correct answer)
- Replication is paused and manual promotion is required
- Both sites go offline until the link is restored
Correct answer: The pod is promoted at the secondary site and becomes read/write without manual intervention
When ActiveCluster detects a site failure and the Mediator grants quorum, the surviving site automatically promotes the pod, allowing hosts to continue I/O with no manual steps.
Question 6: What is the typical minimum RPO achievable with Pure Storage ActiveDR asynchronous replication?
- 60 minutes
- 15 minutes
- Seconds (as low as ~30 seconds) (Correct answer)
- 24 hours
Correct answer: Seconds (as low as ~30 seconds)
ActiveDR can be configured with replication intervals as low as approximately 30 seconds, providing near-continuous data protection for asynchronous DR.
PSC PSC Disaster Recovery & Business Continuity 2
In Pure Storage, what is a 'pod' in the context of ActiveCluster replication?