Allocation unit size in disk formatting does what? Tags: Hard Drives Western Digital Formatting Storage TRSCOOP October 29, 2012 1:45:07 PM I HAVE A 'WD' STORAGE DEVICE. I WANT TO BACK-UP MY LAPTOP, SMARTPHONE and MY iPOD WITH IT. CAN I PARTITION IT TO DO THIS? CAN IT BE OVERWRITTEN ON SUBSEQUENT BACK-UP's, VICE FILLING THE DISK WITH REPEAT DATA? More about : allocation unit size disk formatting Can't find your answer ? Ask ! Publish Related resources Allocation Unit Size ( Formatting 500GB) Forum X25-M allocation unit size Forum Cluster ( allocation unit ) size for NTFS in Windows 7 Forum USB drive for flashing BIOS - Allocation unit size ? Forum Change Allocation unit size with RAID 0 stripe 128 or not? Forum NTFS allocation unit size ? Forum Best file system and allocation unit size Corsair Flash Voyager 16GB Forum What size should I use for file allocation size 300 gb disk Forum External Enclosure + Adv Format - power draw & allocation unit size ? Forum Alocation unit size ?is bigger better? Forum Best Practices for a Storage Partition Vista/Win7 NTFS Allocation unit Forum Allocation unit size and maximum file size Forum When formatting what is allocation unit size Forum 1 HDD vs. 2 HDD RAID-0 Forum Check Disk stuck at 49% Forum Hard Disk error Forum My hard disk is right protected Forum How to repair hitachi external hard disk drive Forum [Solved] HDD format to 4k allocation size? Forum USB Flash Drive is write protected and shows up as unknown on Disk Management. H Forum More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !