Windows Server 2003 supports two data storage types: basic disks using traditional partitioning and dynamic disks allowing more volumes per disk. Disk Management is the primary tool for managing partitions, volumes, and disk properties. Fault tolerance can be achieved through software RAID strategies like RAID 1 (disk mirroring) and RAID 5 (striped volumes with distributed parity). A variety of command line utilities are available for additional disk management tasks and monitoring disk health.