Yes.
When I use onehost show <ID>,I got the message



 Best Wishes!
 Dennis

From: Carlos Martín Sánchez
Date: 2013-12-03 19:06
To: Kenneth
CC: users; 曹海峰
Subject: Re: [one-users] How do i know the cluster's datastore's capacity?
Hi there,


On Tue, Nov 26, 2013 at 9:48 AM, 曹海峰 <[email protected]> wrote:

Thanks for replay!
But if I use a shared folder ,such as /var/lib/datastore/1/ on host A  and 
mount it on all hosts in a cluster. the whole storage capacity is very 
small,Opennebula can't use other hosts's disk space.?


On Tue, Nov 26, 2013 at 9:53 AM, Kenneth <[email protected]> wrote:

You can of course. But it is up to you to monitor.
Not in OpenNebula 4.4 :)
Local (ssh) system datastores are also monitored, but the storage is reported 
for each host: in the onehost show output, or selecting the host in Sunstone.


Best regards.
--

Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple

www.OpenNebula.org | [email protected] | @OpenNebula



On Tue, Nov 26, 2013 at 9:53 AM, Kenneth <[email protected]> wrote:

You can of course. But it is up to you to monitor. And using storage on 
different hosts will cause the VMs to be copied via scp which is pretty slow.
Another way to have a large storage is to remove other drives on the nodes (or 
use small drives in them) and then plug big capacity drives on the main NFS 
node. I mean put everything on the host A and let other have a small hard drive 
just enough for the OS itself.
---
Thanks,
KennethApollo Global Corp.
On 11/26/2013 04:48 PM, 曹海峰 wrote:
Thanks for replay!
But if I use a shared folder ,such as /var/lib/datastore/1/ on host A  and 
mount it on all hosts in a cluster. the whole storage capacity is very 
small,Opennebula can't use other hosts's disk space.?





 Best Wishes!
 Dennis

From: [email protected]
Date: 2013-11-26 16:27
To: [email protected]
Subject: Re: [one-users] How do i know the cluster's datastore's capacity?
That's because you are not using a shared folder for all hosts. A better way to 
do it is to make the /var/lib/datastore/1/ folder on the sunstone as a NFS 
folder and then mount it all other hosts on the same location 
/var/lib/datastore/1/. This will enable you to do live migrations and very fast 
deployment of vms.
---

Thanks,
KennethApollo Global Corp.
On 11/26/2013 04:17 PM, caohf wrote:
Dear all:
How do i get the whole capacity for a  cluster's datastores,
I have two hosts in a cluster, every host has 100GB space for 
/var/lib/datastore.
In sunstone i find the capacity of cluster only display the capacity of  host 
where the sunstone deployed.




 Best Wishes!
 Dennis


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