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====== Pré-requis / Généralités ======

* [[Systèmes de fichiers]].
  * [[Opérations volumes SCSI.]]
  * [[Managing partitions]].
  * [[Découpage Disques]].
  * [[UUID disque]].

====== Volumes simples ======

* [[Création volume simple]].
  * [[Augmentation volume simple]].

====== Volumes LVM ======

* [[Généralités LVM]] à lire avant de lire les sous-parties.

===== Création volume LVM =====

* [[Création volume LVM sur disque]].
  * [[Création volume LVM sur partition]].

* Deprecated [[Création FileSystem supérieur à 2To]].

===== Augmentation volume LVM =====

* [[Augmentation volume LVM sur disque]].
  * [[Augmentation volume LVM sur partition ExtensionPV]].
  * [[Augmentation volume LVM sur partition AjoutPV]].

===== Réduction volume LVM =====

* [[Réduction volume LVM]].

===== Renommage de volumes =====

*[[Renommage volume LVM]]. Suite à une migration.

====== Montage volume RAID ======

To mount a disk from a Synology RAID with mdadm.
 
  * https://michaelheap.com/mount-synology-hdd-linux

<code>
# mkdir /mnd/dd
# mount /dev/sdd5 /mnt/dd
mount: /media/test: unknown filesystem type 'linux_raid_member'.
</code>
Unknown filesystem type? Looks like I need to create a software RAID to mount it in to!
<code>
# mdadm --assemble --run /dev/md0 /dev/sdd5
mdadm: /dev/sdb5 is busy - skipping
</code>
Busy? But it’s not mounted. Let’s take a look
<code>
# mdadm --examine /dev/sdd 
/dev/sdb:
   MBR Magic : aa55
Partition[0] :   4294967295 sectors at            1 (type ee)
</code>

Run ls /dev/md then press tab to see what auto-completes. For me, it was /dev/md127. Let’s stop that and create a software RAID at /dev/md0
<code>
# ls /dev/md
</code>

<code>
# mdadm --stop /dev/md127
# mdadm --assemble --run /dev/md0 /dev/sdd5
mdadm: /dev/md0 has been started with 1 drive (out of 2).
</code>
That’s correct! There were two drives and I’ve only provided one. Let’s mount it
<code>
# mount /dev/md0 /mnt/dd
mount: /media/test: unknown filesystem type 'LVM2_member'.
</code>
Another unknown error. This is because it’s an LVM volume. Let’s see which are available using vgs
<code>
# vgs
  VG     #PV #LV #SN Attr   VSize VFree
  vg1000   1   1   0 wz--n- 5.45t    0
</code>
vg1000, I see you! Let’s mount that volume group now
<code>
# mount -o ro /dev/mapper/vg1000-lv /mnt/dd
</code>

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