Back in the 80's, I was running something called MUSIC under VM, submitting\nacross an interface to a VS2/SVS (batch) system. Folks would caution me\nnot to submit tape jobs on Sunday nite, lest the operators might abend\nmy job to free up a tape drive for the backups they were always running\non Sunday.\n\nHow times have changed.\n\nI have a little desktop system built around an Asus H55 board and Intel\nNahalem Clarkdale cpu and 2 identical Samsung 500gb HD's.\n\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\n| | | | | | |\nDisk 1 |D1P1| D1P2 | D1P3 | D1P4 |unalloc | D1P5 |\n| | W7 | XP | data | | old sys |\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\n\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\n| | | | | |\nDisk 2 |D2P1| D2P2 | D2P3 |unalloc | D2P4 |\n| | W7 | XP | | old sys |\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\n\nwhere DiPj is Partition j on Disk i.\n\nAll OS's are either Win7 or XP. All partitions are NTFS. The P1's are\npresumably mere fragments (7.84 mb) left over from allocation, but Partition\nWizard CD lists them as partitions.\n\nEvery Sunday nite I delete D2P3 and copy/compress D1P3 to D2P3 running a\nbootable Partition Wizard CD. This effectively gives me an image copy of the\nused data on my primary use partition. D1P3 sits on 79 gb of space. The\ncopied D2P3 is compressed down to used space of about 26 gb.\n\nIs D1P3 100% safe? If a file on D1P3 becomes corrupted, I can merely copy such\nfile from D2P3 back to D1P3. Similar for a directory/file structure.\n\nIf D1P3 became corrupted, I could copy D2P3 back to D1P3 using bootable\nPartition Wizard CD in a similar fashion? Remember that the disk geometries are\nidentical.\n\nSafe? Unsafe?? What say you? :-)\n\nP\n\n"Law Without Equity Is No Law At All. It Is A Form Of Jungle Rule."