proxmox-mirrors/pve-docs
1
0
Fork 0
mirror of https://git.proxmox.com/git/pve-docs synced 2025-04-30 08:16:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

cleanup: limit character per line, fix Thin provisioning section level

Browse Source
This commit is contained in:
Dietmar Maurer 2016-05-18 17:13:40 +02:00
parent ebc15cbca7
commit 2afe468c96
1 changed files with 15 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
pvesm.adoc
View File

@ -84,21 +84,24 @@ TIP: It is possible to use LVM on top of an iSCSI storage. That way
you get a 'shared' LVM storage. you get a 'shared' LVM storage.
Thin provisioning Thin provisioning
----------------- ~~~~~~~~~~~~~~~~~
A number of storages, and the Qemu image format `qcow2`, support _thin provisioning_. A number of storages, and the Qemu image format `qcow2`, support _thin
With thin provisioning activated, only the blocks that the guest system actually use will be provisioning_. With thin provisioning activated, only the blocks that
written to the storage. the guest system actually use will be written to the storage.
Say for instance you create a VM with a 32GB hard disk, and after installing the Say for instance you create a VM with a 32GB hard disk, and after
guest system OS, the root filesystem of the VM contains 3 GB of data. installing the guest system OS, the root filesystem of the VM contains
In that case only 3GB are written to the storage, even if the guest VM sees a 3 GB of data. In that case only 3GB are written to the storage, even
32GB hard drive. In this way thin provisioning allows you to create disk images if the guest VM sees a 32GB hard drive. In this way thin provisioning
which are larger than the currently available storage blocks. You can create allows you to create disk images which are larger than the currently
large disk images for your VMs, and when the need arises, add more disks to your available storage blocks. You can create large disk images for your
storage without resizing the VMs filesystems. VMs, and when the need arises, add more disks to your storage without
resizing the VMs filesystems.
All storage types which have the 'Snapshots' feature also support thin
provisioning.
All storage types which have the 'Snapshots' feature also support thin provisioning.
Storage Configuration Storage Configuration
--------------------- ---------------------