Internal HD and External HD Backup

[jb]

iMac G5 rev.A OS 10.4.11

Just curious. After making a copy with SuperDuper of my Internal HD (10.4) to my External HD Backup partition, why do I see differences in File Infos and DiskWarrior Directory Out of order items. See picture.

[attachment=850:Picture_1.jpg]

File Infos. Why the difference in the “Used” totals, 58.69 GB vs 43.79 GB?

Out of order items. 47,271 of 1,728,320 vs 37,545 of 1,049,850. Why the differences in the totals of items?

jb  

[Paddy]

Jb, my backups (2 of them) are both 7 GB smaller than the original; my guess would be the difference is in things like swap files etc. that SD doesn't copy. A quote from Dave Nanian on the subject in the Shirt Pocket forums re things that SD doesn't copy:

QUOTE

VM Swap files, sleep images, temporary files, spotlight index -- all can be quite large.

I don't know why you're seeing a difference in "out of order items" - perhaps you should ask Dave on the SD forums?

http://www.shirt-pocket.com/forums/

Let us know what he says!

[rongold]

According to Dave Nanian at SD Forums who checked with Alsoft, the out of order report on the Clone of the Internal HD does not signify anything of importance. It always occurs when you run Disk Warrior to check a new or updated clone created by SD, reporting about 32-34% of files out of order.

[Paddy]

See: http://www.shirt-pocket.com/forums/showthr...ht=Disk+Warrior for more info.

So I guess your 4% "out of order" is actually rather low, jb!

[jb]

Thank you both. Not that I was concerned, just curious. Paddy, it was not the 3 or 4% that I was curious about, but that the total numbers of files, 1,728,320 vs 1,049,850.

Anyway, Dave Danian gave the answer,

”re things that SD doesn't copy:
QUOTE
VM Swap files, sleep images, temporary files, spotlight index -- all can be quite large.”

Thanks again.

jb