PSC Disaster Recovery & Business Continuity Flashcards

What Pure Storage feature enables synchronous replication between two FlashArray systems to achieve zero RPO?

Answer: ActiveCluster

ActiveCluster provides synchronous, bidirectional replication between two FlashArray systems, delivering zero RPO and transparent failover.

In a Pure Storage ActiveCluster deployment, which component serves as a tiebreaker to prevent split-brain scenarios?

Answer: Mediator

The Mediator is a lightweight service (hosted on Pure1 or on-premises) that acts as a quorum tiebreaker to prevent split-brain when ActiveCluster sites lose connectivity.

Which Pure Storage replication feature provides asynchronous replication with a configurable RPO, typically used for remote DR sites?

Answer: ActiveDR

ActiveDR delivers asynchronous replication with configurable RPO (as low as seconds), enabling cost-effective disaster recovery to a remote site.

What Pure Storage feature protects snapshot data from ransomware by making snapshots immutable for a configurable retention period?

Answer: SafeMode

SafeMode snapshots are protected snapshots that cannot be deleted by array administrators until the retention period expires, providing ransomware protection.

What is the minimum number of FlashArray systems required to implement a Pure Storage ActiveCluster stretched cluster?

Answer: 2

ActiveCluster requires exactly two FlashArray systems — one at each site — plus a Mediator for quorum.

Which Pure Storage replication technology provides the lowest RTO (Recovery Time Objective) in a disaster recovery scenario?

Answer: ActiveCluster

ActiveCluster provides near-zero RTO because both sites are active simultaneously and hosts at the surviving site continue without any failover action.