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