as already mentioned Gregory, you can use RBD at same time from both servers - Microsoft CSV should be run well.
I don't make any test for CSV yet, so can you please try and do quick response about that?
Thank you very much for your prompt response…
So basically I can’t use cluster aware tool like Microsoft CSV on the RBD, is that correct?
What I am trying to understand is that can I have 2 physical hosts (Maybe Dell PowerEdge2950)
*host1 with VM#0-10
*host2 with VM #10-20
And both of these hosts accessing one big LUN or, in this case ceph RBD?
Can host1 failed all it VMs to host2 in case that machine has trouble and still make it resources available to my users? This is very important to us if we really want to explore this new avenue of Ceph
Thank you,
Yao Mensah
Systems Administrator II
OLS Servers
MCITP
MCSE NT4.0 / 2000-2003
A+
From: Dave Spano [mailto:dspano@xxxxxxxxxxxxxx]
Sent: Thursday, May 23, 2013 1:19 PM
To: Mensah, Yao (CIV)
Cc: ceph-users@xxxxxxxxxxxxxx
Subject: Re: FW: About RBD
Unless something changed, each RBD needs to be attached to 1 host at a time like an ISCSI lun.
Dave Spano
Optogenics
From: "Yao Mensah (CIV)" <Yao.Mensah@xxxxxxxxx>
To: ceph-users@xxxxxxxxxxxxxx
Sent: Thursday, May 23, 2013 1:10:53 PM
Subject: FW: About RBDFYI
From: Mensah, Yao (CIV)
Sent: Wednesday, May 22, 2013 5:59 PM
To: 'info@xxxxxxxxxxx'
Subject: About RBD
Hello,
I was doing some reading on your web site about ceph and what it capable of. I have one question and maybe you can help on this:
Can ceph RBD be used by 2 physical hosts at the same time? Or, is Ceph rbd CSV(Clustered Shared Volumes) aware?
Thank you,
Yao Mensah
Systems Administrator II
OLS Servers
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