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Re: [Qemu-devel] [RFC PATCH] replication agent module
From: |
Orit Wasserman |
Subject: |
Re: [Qemu-devel] [RFC PATCH] replication agent module |
Date: |
Wed, 08 Feb 2012 14:17:36 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 |
On 02/07/2012 04:05 PM, Paolo Bonzini wrote:
> On 02/07/2012 02:50 PM, Stefan Hajnoczi wrote:
>>> I guess we might need to attach multiple QMP monitors for this to work
>>> (one for libvirt, one for the rephub). I'm not sure if there is a
>>> fundamental problem with this or if it just needs to be done.
>>
>> Agreed. You can already query block devices using QMP 'query-block'.
>> By adding in-process NBD server support you could then launch an NBD
>> server for each volume which you wish to replicate. However, in this
>> case it sounds almost like you want the reverse - you could provide an
>> NBD server on the rephub and QEMU would mirror writes to it (the NBD
>> client code is already in QEMU).
>
> Yes, this is how we were also planning to do migration without shared
> storage, right?
We originally planned to run ISCSI target . But now that NBD can handle a file
chain we can use it too.
>
> Paolo
>
>
Re: [Qemu-devel] [RFC PATCH] replication agent module, Kevin Wolf, 2012/02/07
- Re: [Qemu-devel] [RFC PATCH] replication agent module, Stefan Hajnoczi, 2012/02/07
- Re: [Qemu-devel] [RFC PATCH] replication agent module, Ori Mamluk, 2012/02/07
- Re: [Qemu-devel] [RFC PATCH] replication agent module, Anthony Liguori, 2012/02/07
- Re: [Qemu-devel] [RFC PATCH] replication agent module, Stefan Hajnoczi, 2012/02/07
- Re: [Qemu-devel] [RFC PATCH] replication agent module, Anthony Liguori, 2012/02/07
Re: [Qemu-devel] [RFC PATCH] replication agent module, Markus Armbruster, 2012/02/21
Re: [Qemu-devel] [RFC PATCH] replication agent module, Stefan Hajnoczi, 2012/02/21
Re: [Qemu-devel] [RFC PATCH] replication agent module, Ori Mamluk, 2012/02/07
Re: [Qemu-devel] [RFC PATCH] replication agent module, Luiz Capitulino, 2012/02/08