A system, method and computer program product for analyzing file I/O activity on local attached storage devices within a computer network is provided. In an embodiment, a software agent executes on one or more servers within the network, and monitors the I/O activity on the network's local attached storage (e.g., SAN, NAS, and IDE and SCSI disks). A management interface is also provided for monitoring I/O activity-related data and for receiving reports on such I/O activity. In an embodiment, collected I/O-related data and any predefined I/O metrics are stored in a central repository (e.g., a relational database). The system, method and computer program product provide accurate metrics to assists system administrators in deciding, justifying and validating resource purchases for and allocations within the network.