Useful tips

What is lvm mirroring?

by Rhyley Bryan

What is lvm mirroring?

Logical volume manager (LVM) mirroring provides the ability to allocate more than one copy of a physical partition to increase the availability of the data. When a disk fails and its physical partitions become unavailable, you still have access to mirrored data on an available disk.

How to create an lvm mirror?

Here are the steps to creating LVM mirroring

  1. Create a two partition using fdisk command( you can use partition or whole disk).
  2. Create Physical Volumes.
  3. Create Volume Group.
  4. Creating Mirrored Logical Volumes.
  5. Creating File system.
  6. Mounting Filesystem.

What is mirroring in linux?

Mirror could refer to servers that have the same data as some other computer… like Ubuntu repository mirrors… but it could also could refer to a “disk mirror” or RAID.

How do I mirror a disk in Linux?

Mirroring in Linux

  1. # sudo apt-get install mdadm.
  2. Partition the disk. fdisk -l.
  3. creating RAID. # mdadm –create /dev/md0 –level=mirror –raid-devices=2 /dev/sdb1 /dev/sdc1.
  4. cat /proc/mdstat. Personalities : [raid1]
  5. Create file system on the RAID.
  6. sudo mkdir /data (creating directory so that we can mount our drive here)

What does a mirrorlog do in LVM mirroring?

LVM maintains a small log which it uses to keep track of which regions are in sync with the mirror or mirrors.

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Is the movie Mirror Mirror based on a true story?

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