Check out this awesome utility out of Taiwan called CloneZilla, a disk and partition cloning system that works like Norton Ghost.  CloneZilla can make a copy of your mission critical systems in no time.   CloneZilla live can ” clone a 5 GB system to 40 clients in about 10 minutes.”  The CloneZilla SA version can clone up to 40 systems at once.  According to their site, one test case showed a 42-node cluster, using multicast restoring worked at a rate of 8GB/min.  Holy cow!

Supported file system types include just about everything under the sun.  In particular, (1) ext2, ext3, ext4, reiserfs, reiser4, xfs, jfs, btrfs of GNU/Linux, (2) FAT12, FAT16, FAT32, NTFS of MS Windows, (3) HFS+ of Mac OS, (4) UFS of FreeBSD, NetBSD, and OpenBSD, (5) minix of Minix, and (6) VMFS3 and VMFS5 of VMWare ESX.