additionally, I copied data "from" the 1M cluster SATA partition to a newly formatted NTFS 64k cluster partition.
after defraggler analysis, there was zero fragmentation (as would be expected)
it seems when copying data "to" the 1M exfat partition causes virtually 100% fragmentation. Again, i have not verified this with another program.
Out of interest, i tried again. This time re-formatting to an exfat with a 32M cluster size. I copied about 4G of data (large files > 32M). There was zero defragmentation (again as expected)
The annomalies i see:
when analysing the 1Tb exfat formatted partition 128k cluster size (in RAID 0 config with 32k chunk size and 90% of the drive full) defraggler goes to the ?not responding? stage of a hung window, uses ~80-100% CPU resources, however it eventually completes after 15 mins. On the win 7 taskbar the green progress indicator seems to flow linearly until about 90% where it takes a lot longer to eventually finish.
when analysing a single 1Tb SATA drive with exfat 1M cluster size (70% full), as above
when analysing a single 250Gb SATA drive with exfat 128k cluster size, all is OK
tests/graphs/figures aside, i see no performance issues with the 1M cluster SATA drive and copying BTW any of the other drives
even though it reports as having ~85% fragmentation
?