> > There is nothing intrinsic about Windows XP Home, cygwin/rsyncd > (especially with cygwin 1.7), and BackupPC that should be causing your > backups to be significantly worse than backing up a Linux system. > > Are those other machines also Windows XP Home or are they linux? >
The other machines are Windows 7. > USB drives are slow and the problem may be exacerbated if the pool is > on a USB drive and you are not doing checksum caching. > Yes, that's two strikes against me. But checksum caching won't help me with the initial backup, which takes 8+ hours. Right now I'm leaning toward a 5-drive setup. One drive for the operating system, and the rest for the pool in a RAID 0+1 array, which, according to http://www.z-a-recovery.com/art-raid.htm, will allow me to write twice as fast as with a single disk and which will tolerate disk failure fairly well. I guess it's a slight step up from Les's original suggestion. One thing I'm not sure about with regard to RAID 0+1 arrays is how to recover from a disk failure. I understand that if you replace a drive in a RAID5, its contents are rebuilt using the parity on the other drives -- you can rebuild the array without powering down the machine (assuming you have hot-swappable drives). Is this possible for a RAID 0+1 configuration? If not, I guess there's no point in paying the premium for hot-swappable drives. Thanks! -Frank
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