How would you size a NetApp fabric for a mixed workload including NFS and iSCSI with both latency-sensitive and throughput-heavy demands?

How would you size a NetApp fabric for a mixed workload including NFS and iSCSI with both latency-sensitive and throughput-heavy demands?

• A. Size based only on total capacity without considering IOPS.
• B. Use a single aggregate and no RAID protection.
• C. Assess IOPS, latency, and bandwidth per protocol, use multiple aggregates or FlexGroups for scale-out, and reserve capacity with appropriate RAID-DP protection.
• D. Ignore protocol differences when planning.

Answer: (C)

Sizing a NetApp fabric for mixed NFS and iSCSI workloads means focusing on performance requirements in addition to capacity. Different protocols and workload types have distinct IO patterns: latency-sensitive operations and small random IOs demand low latency and short queues, while throughput-heavy tasks benefit from more parallelism and higher bandwidth. Because of that, you wouldn’t size based only on total capacity. Instead, assess IOPS, latency, and bandwidth for each protocol, then design to meet those targets. Using multiple aggregates or a FlexGroup for scale-out helps isolate and distribute work so NFS and iSCSI don’t contend for the same spindles or controllers. This separation is key for meeting both latency-sensitive and throughput-heavy demands, since each protocol can be optimized with its own performance path and parallelism. Plan for capacity with spare headroom and use RAID-DP protection to guard against drive failures while accounting for parity overhead, rebuild activity, and future growth. This combination provides both the performance isolation needed by mixed workloads and the reliability expected from a protected storage fabric.

Sizing a NetApp fabric for mixed NFS and iSCSI workloads means focusing on performance requirements in addition to capacity. Different protocols and workload types have distinct IO patterns: latency-sensitive operations and small random IOs demand low latency and short queues, while throughput-heavy tasks benefit from more parallelism and higher bandwidth. Because of that, you wouldn’t size based only on total capacity. Instead, assess IOPS, latency, and bandwidth for each protocol, then design to meet those targets.

Using multiple aggregates or a FlexGroup for scale-out helps isolate and distribute work so NFS and iSCSI don’t contend for the same spindles or controllers. This separation is key for meeting both latency-sensitive and throughput-heavy demands, since each protocol can be optimized with its own performance path and parallelism. Plan for capacity with spare headroom and use RAID-DP protection to guard against drive failures while accounting for parity overhead, rebuild activity, and future growth. This combination provides both the performance isolation needed by mixed workloads and the reliability expected from a protected storage fabric.