mirror of
https://github.com/ceph/ceph
synced 2024-12-21 02:42:48 +00:00
55 lines
1.7 KiB
ReStructuredText
55 lines
1.7 KiB
ReStructuredText
===========================
|
|
RBD and Apache CloudStack
|
|
===========================
|
|
|
|
You can use RBD to run instances on in Apache CloudStack.
|
|
|
|
This can be done by adding a RBD pool as Primary Storage.
|
|
|
|
There are a couple of prerequisites:
|
|
* You need to CloudStack 4.0 or higher
|
|
* Qemu on the Hypervisor has to be compiled with RBD enabled
|
|
* The libvirt version on the Hypervisor has to be at least 0.10 with RBD enabled
|
|
|
|
Make sure you meet this requirements before installing the CloudStack Agent on the Hypervisor(s)!
|
|
|
|
.. important:: To use RBD with CloudStack, you must have a running Ceph cluster!
|
|
|
|
Limitations
|
|
===========
|
|
|
|
Running instances from RBD has a couple of limitations:
|
|
|
|
* An additional NFS Primary Storage pool is required for running System VM's
|
|
* Snapshotting RBD volumes is not possible (at this moment)
|
|
* Only one monitor can be configured
|
|
|
|
Add Hypervisor
|
|
==============
|
|
|
|
Please follow the official CloudStack documentation how to do this.
|
|
|
|
There is no special way of adding a Hypervisor when using RBD, nor is any configuration needed on the hypervisor.
|
|
|
|
Add RBD Primary Storage
|
|
=======================
|
|
|
|
Once the hypervisor has been added, log on to the CloudStack UI.
|
|
|
|
* Infrastructure
|
|
* Primary Storage
|
|
* "Add Primary Storage"
|
|
* Select "Protocol" RBD
|
|
* Fill in your cluster information (cephx is supported)
|
|
* Optionally add the tag 'rbd'
|
|
|
|
Now you should be able to deploy instances on RBD.
|
|
|
|
RBD Disk Offering
|
|
=================
|
|
|
|
Create a special "Disk Offering" which needs to match the tag 'rbd' so you can make sure the StoragePoolAllocator
|
|
chooses the RBD pool when searching for a suiteable storage pool.
|
|
|
|
Since there is also a NFS storage pool it's possible that instances get deployed on NFS instead of RBD.
|