Using Raid 0 + Time Machine

[Tesselator]

In a clone, it's 1:1 (no compression or calculations, as its a direct copy of the drive), and the only thing I can think of is random access of small files. If there's enough of them, it could get to the 60's MB/s range.

For TM or other backup software, the compression employed could slow you down as well.

CCC, SuperDuper, D&D, Disk Utility, and TM all copy files on a dos level tho. So they don't actually "clone" the drive.

TM may compress files I dunno. The other don't tho. Well, actually Disk Utility has a DMG mode with compression but...

I think there is ONLY one recovery type tool that actually clones and no one uses it for backups that I know of.

 

[nanofrog]

CCC, SuperDuper, D&D, Disk Utility, and TM all copy files on a dos level tho. So they don't actually "clone" the drive.

I've not used them, and wasn't sure if it was or not. What I'm using actually loads a Linux Kernel to do it, rather than DOS. Not a lot different, but at least it's UNIX.

TM may compress files I dunno. The other don't tho. Well, actually Disk Utility has a DMG mode with compression but...

I think there is ONLY one recovery type tool that actually clones and no one uses it for backups that I know of.

I've had decent luck with True Image (tested it first for stability and functionality). It works for both Linux and Windows disks, but not OS X. It can't handle HSF/+ formatted drives. It can compress it's backup files fairly well, and I've found it to be rather speedy for doing so IIRC (as it's set to automatic, I only did it manually during testing). But I usually shave 40GB down to 25GB in a single file (.tib extension, not sector-by-sector), so a 15GB savings isn't bad (37.5% or so). Helps reduce the frequency of replacing backup drives/adding new ones.