- We took a backup of a 465GB drive (entire drive, single partition, Windows, NTFS, about 90% full). The backup process took approximately 5 hours.
- We went to restore disks/partitions and chose to Expand/Shrink partition to whole disk. The restore process took approximately 26 hours.
We've seen similar results with other restores. I should mention that, in each case, the network speed, backup location and media, and all other variables remained the same for the backup & restore. In all cases, we are just yanking a smaller drive and upgrading it to a larger one, then running the restore process.
Is there a particular reason that it takes so much longer to recover the data than it does to back it up? Would it be faster if we chose Copy all partitions onto original places and then manually ran diskpart (or equivalent)?
Thanks for your time & input.