What is the primary purpose of quorum in NetApp clusters?

What is the primary purpose of quorum in NetApp clusters?

• A. To prevent split-brain by requiring a majority of nodes to participate
• B. To accelerate I/O throughput
• C. To manage encryption keys
• D. To govern license distribution

Answer: (A)

Quorum in NetApp clusters is about ensuring a single, authoritative cluster state when connectivity or node availability is uncertain. It works by requiring a majority of voting members to participate in cluster decisions, so only the partition that can form a majority remains active. If a network split or failures occur, the partition without a majority cannot make decisions, preventing two sides from operating independently. This avoidance of split-brain protects data integrity by ensuring writes are coordinated and consistent across the cluster. In some configurations, a witness or quorum device provides a tie-break in multi-site setups, but the core idea remains: a majority is needed to govern cluster activity. Quorum is not about speeding I/O, managing encryption keys, or distributing licenses.

Quorum in NetApp clusters is about ensuring a single, authoritative cluster state when connectivity or node availability is uncertain. It works by requiring a majority of voting members to participate in cluster decisions, so only the partition that can form a majority remains active. If a network split or failures occur, the partition without a majority cannot make decisions, preventing two sides from operating independently. This avoidance of split-brain protects data integrity by ensuring writes are coordinated and consistent across the cluster. In some configurations, a witness or quorum device provides a tie-break in multi-site setups, but the core idea remains: a majority is needed to govern cluster activity. Quorum is not about speeding I/O, managing encryption keys, or distributing licenses.