diff --git a/baremetal.rst b/baremetal.rst new file mode 100644 index 0000000..5ef0051 --- /dev/null +++ b/baremetal.rst @@ -0,0 +1,60 @@ +Baremetal Backup/Restore - Another Approach +=========================================== + + +Overview +-------- + +Many commercial and open source solutions exist to solve the +problem of being able to + +Backup +------ + + +Restore +------- + + +Conclusions & Limitations +------------------------- + +- This seems to work fine in the limited configuration that was tested. + +- The upside of this approach is that you can use standard Linux + commands to do imaged backups of your machine. + +- There are two downsides: + + 1) You cannot do this while the machine is up and running. + + 2) Every block in the partition gets copied whether it is used or not. + +- In *theory* this should also work on SAN-booted machines so long as + the exact same LUN (WWID and size) is presented for the restore as + was used for the backup. However, this was not tested and theory + and Reality usually collide in rather nasty ways. Mr. Murphy is not + our friend. + +- Same story for VMs. Not tested. It's unclear whether a VM booted + from a rescue disk would see the underlying disk storage (VMDK or + whatever). + +- Again, *theoretically* this should work with other operating system + partitions and data partitions. But ... not tested. + + + +Document Information & Disclaimer +--------------------------------- + +This document describes an *experimental* procedure for learning +purposes. It has not been tested in all possible hardware, operating +system, and network configurations. You should not trust this +approach unless you prove that you can backup *and* restore correctly in *your +environment*. + +Copyright (c) 2014, TundraWare Inc. + +$Id: baremetal.rst,v 1.1 2014/08/22 21:28:22 tundra Exp $ +