Regardless of the sophistication of the hardware installed, the SAN appears to Windows as one logical drive.
It’s also important to note that the interface EIDE, SCSI, SATA, i-SCSI, Fibre Channel, etc… does not alter the relevance of defragmentation. Because the purpose of fault-tolerant disk striping is to offer redundancy, as well as improved disk performance by splitting the I/O load, it is a common misconception that fragmentation does not have a negative impact. SANs, NAS devices, corporate servers, and even high-end workstations and multimedia-centric desktops characteristically implement multiple physical disk drives in some form of fault-tolerant disk striping (RAID). Fragmentation prevention offers significant benefits when implemented on intricate modern hardware technologies such as RAID, NAS and SANs, and all-flash.
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