The perception that fragmentation does not affect SANs, NAS, and RAID is incorrect. Disk arrays improve I/O performance, but they aren't invulnerable to fragmentation. This white paper explains the relationship between the logical disk with which the operating system interacts and the physical drive array, and shows why arrays are just as prone to fragmentation as a single physical drive. Read this white paper and discover the technical issues concerning fragmentation, SANs, NAS, and RAID.
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