Hi,
As for me personally, I also want to use ScaleIO as a storage (with Ceph
I have bad performance) and have decided to switch to OpenStack just
because there is a native support ScaleIO there.
04.04.2017 18:28, Engelmann Florian пишет:
Hi,
thank you both for your feedback! So we will drop CLVM from our test matrix.
A ScaleIO driver would be the perfect solution but I guess that won't happen...
to time consuming :(
Ceph looks promising right now - less performance as ScaleIO but well supported
and integrated in ACS.
All the best,
Florian
________________________________________
From: Simon Weller <[email protected]>
Sent: Tuesday, April 4, 2017 4:17 PM
To: [email protected]
Subject: Re: KVM + CLVM and Snapshots
Florian,
It does work, but can be challenging when it comes to stability. We still have
2 zones build with CLVM and we're activity migrating away from it. The major
problem is that it complicates host configurations and you really need a quorum
disk in order to fence correctly. It's very sensitive to load on the hosts and
that can cause unexpected fencing activity and hence an unstable cluster.
Are you able to export scalio storage via NFS? Your other option is to build a
storage driver in CloudStack that can control the storage access via APIs,
rather than rely on an CLVM overlay. If you are a paying customer of EMCs, you
should reach out to them and see if they would consider writing a storage
plugin for you.
Your other option is to work with one of the professional services
organizations associated with ACS to write the driver for you (Cloudops,
Shapeblue et al).
- Si
________________________________
From: Engelmann Florian <[email protected]>
Sent: Tuesday, April 4, 2017 4:13 AM
To: [email protected]
Subject: KVM + CLVM and Snapshots
Hi,
as the cloudstack documentation explains CLVM is not supported with Cloudstack:
"The use of the Cluster Logical Volume Manager (CLVM) for KVM is not officially
supported with CloudStack."
http://docs.cloudstack.apache.org/projects/cloudstack-installation/en/4.9/storage_setup.html
Storage Setup — Apache CloudStack Installation
...<http://docs.cloudstack.apache.org/projects/cloudstack-installation/en/4.9/storage_setup.html>
docs.cloudstack.apache.org
Primary Storage¶ CloudStack is designed to work with a wide variety of
commodity and enterprise-rated storage systems. CloudStack can also leverage
the local disks ...
We would like to change our hypervisor from Xenserver to KVM but we have no
idea how to use ScaleIO with KVM without using CLVM?
The question is - why isn't CLVM supported? Is it because of snapshots are not
allowed on clustered VGs?
Any idea how to use ScaleIO with KVM as shared storage?
All the best,
Florian
EveryWare AG
Florian Engelmann
Systems Engineer
Zurlindenstrasse 52a
CH-8003 Zürich
T +41 44 466 60 00
F +41 44 466 60 10
[email protected]
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