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How To Perform a Bare-Metal Backup On Linux LVM

Posted by timothy on from the you-may-touch-only-the-heavy-atoms dept.

perlow writes "Using the free System Rescue CD you can perform bare-metal backups and restores of many types of computer systems. In this article, ZDNet columnist Jason Perlow explains the multi-step procedure in detail on an LVM-based system."

1 of 34 comments (clear)

  1. Re:Sure - Don't. by bernz · · Score: 3, Insightful

    You make sure that all your devices block devices (at least if you're in a "Real Enterprise") are at least mirrored. Just because LVM2 writes across all disks, doesn't mean you're in a single-point-of-failure mode (or RAID0 or JBOD). You just make sure your "disks" are not just a single Physical Disk, but rather a LUN composed of a RAID6 with multiple paths anf power-supplies.

    And if you're not an Enterprise, this can be done on the "cheap" with RAID6 commodity boxes running as iSCSI targets.

    If you're ever relying on a single device for ANYTHING you're doing it wrong. But LVM is perfectly safe if you do it in a responsible way. It just isn't necessarily super-cheap.