[Qemu-devel] Re: [ANNOUNCE] Sheepdog: Distributed Storage System for KVM

[MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>]

We use JGroups (Java library) for reliable multicast communication in
our cluster manager daemon. We don't worry about the performance much
since the cluster manager daemon is not involved in the I/O path. We
might think about moving to corosync if it is more stable than
JGroups.

On Wed, Oct 21, 2009 at 6:08 PM, Dietmar Maurer <dietmar@proxmox.com> wrote:
> Quite interesting. But would it be possible to use corosync for the cluster communication? The point is that we need corosync anyways for pacemaker, it is written in C (high performance) and seem to implement the feature you need?
>
>> -----Original Message-----
>> From: kvm-owner@vger.kernel.org [mailto:kvm-owner@vger.kernel.org] On
>> Behalf Of MORITA Kazutaka
>> Sent: Mittwoch, 21. Oktober 2009 07:14
>> To: kvm@vger.kernel.org; qemu-devel@nongnu.org; linux-
>> fsdevel@vger.kernel.org
>> Subject: [ANNOUNCE] Sheepdog: Distributed Storage System for KVM
>>
>> Hi everyone,
>>
>> Sheepdog is a distributed storage system for KVM/QEMU. It provides
>> highly available block level storage volumes to VMs like Amazon EBS.
>> Sheepdog supports advanced volume management features such as snapshot,
>> cloning, and thin provisioning. Sheepdog runs on several tens or
>> hundreds
>> of nodes, and the architecture is fully symmetric; there is no central
>> node such as a meta-data server.
>
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-- 
MORITA, Kazutaka

NTT Cyber Space Labs
OSS Computing Project
Kernel Group
E-mail: morita.kazutaka@lab.ntt.co.jp