A flower distribution company is planning to redesign their web site and offer additional products and delivery services. They expect a significant increase in web traffic and sales. They want to ensu

Upgrading to larger disks increases raw capacity but does not add spindles, so I/O throughput does not improve and read/write performance under load remains unchanged.

Installing additional disks adds more spindles to the storage array, which increases parallel I/O throughput and total capacity simultaneously. More spindles reduce per-disk queue depth, lowering latency during peak traffic. This is the most direct way to scale an existing storage array to meet increased transactional and capacity demands.

Replication between storage blades and the storage array is a data protection strategy, not a performance scaling solution - it adds write overhead rather than relieving the storage bottleneck.

Additional SAN switches improve fabric path redundancy and bandwidth, but the described bottleneck is storage I/O and capacity, not SAN fabric connectivity.