Artikel menarik di undeadly tentang bagaimana prosedur membuat backup disk(cloning) sebelum upgrade mesin production kita. Adakah rekan-rekan lain yang punya tips trick untuk solusi backup?
At each new release, some sysadmins seem to get a bit skittish about upgrading critical production machines. In some environments, you have to be 100% sure you won't break something or at the very least be sure to have a fall-back plan should everything go pear-shaped. While you may have a patching policy in place, upgrading the entire OS in one fell swoop can be risky business if you are not completely prepared. Too much apprehension, and you don't get to take advantage of 'the new hotness' features and possibly result in running releases with either known issues or security problems.
There is a solution however, even on a tight budget. That solution (as the title suggests) is disk cloning. If you tried this before you may be saying, "Ghost is crap: it doesn't like *BSD disks" or "must be nice to have exact duplicate disks lying around."
Those approaches are good but we can do better.