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raid:mdadm:lvm_on_raid [2021/10/01 11:44] peterraid:mdadm:lvm_on_raid [2021/10/01 17:18] (current) peter
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   * This Volume Group can be split into Logical Volumes; in essence different Partitions.   * This Volume Group can be split into Logical Volumes; in essence different Partitions.
   * LVM provides the ability to resize these Logical Volumes very easily.   * LVM provides the ability to resize these Logical Volumes very easily.
-  * LVM is not a replacement for RAID, as it only supports mirroring or stripe. +  * LVM is not a replacement for RAID, as LVM does not provide any options for redundancy or parity that RAID provides.
-    * Using LVM for resilience without RAID would result in twice as much storage being needed; a waste.+
     * Therefore it is best to be have LVM in conjunction with RAID.     * Therefore it is best to be have LVM in conjunction with RAID.
 +
 +<code>
 +|--------------------------------------------------------------------------------------------|
 +|LVM Logical Volumes | / | /var | /usr | /home | /mnt                                        |
 +|--------------------------------------------------------------------------------------------|
 +|LVM Volume Group    |                            /dev/VolGroupArray                         |
 +|--------------------------------------------------------------------------------------------|
 +|RAID Arrays                           /dev/md0                          /dev/md1        |
 +|--------------------------------------------------------------------------------------------|
 +|Physical Partitions | /dev/sda1 | /dev/sda2 | /dev/sdb1 | /dev/sdb2 | /dev/sdc1 | /dev/sdc2 |
 +|--------------------------------------------------------------------------------------------|
 +|Devices                     /dev/sda      |         /dev/sdb      |         /dev/sdc      | 
 +|--------------------------------------------------------------------------------------------|
 +|Hard Drives                  Drive 1      |          Drive 2      |          Drive 3      |
 +|--------------------------------------------------------------------------------------------|
 +</code>
  
 <WRAP info> <WRAP info>
raid/mdadm/lvm_on_raid.1633088673.txt.gz · Last modified: 2021/10/01 11:44 by peter

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