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From: Mike McClurg <mike.mcclurg-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
To: "Fajar A. Nugraha" <list-gqapnpqMBQ1eoWH0uzbU5w@public.gmane.org>
Cc: "xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org"
	<xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org>,
	ruijin zhou <zhourj-hnhdhkBXzx8@public.gmane.org>,
	"xen-api-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org"
	<xen-api-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org>
Subject: Re: [Xen-devel]  CrossPoolMigration
Date: Wed, 21 Dec 2011 08:39:45 +0000	[thread overview]
Message-ID: <4EF19B51.50401@citrix.com> (raw)
In-Reply-To: <CAG1y0seAdN1RiNBmFw-cNrKwAzdi83HaaSGtfCei8JXy31xE2w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On 21/12/11 03:10, Fajar A. Nugraha wrote:
> On Wed, Dec 21, 2011 at 2:39 AM, Mike McClurg <mike.mcclurg-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org> wrote:
>> Storage motion is something that we are prototyping for XCP/XenServer.
>> It will not be a part of the Xen hypervisor. We'll probably start more
>> work on the prototype in January, and we'll post details of our
>> implementation plan to this list.
> 
> Is still based on drbd and tap, as in the wiki page? If yes, it'd be
> ... interesting (to say the least) to see how these issues will be
> handled:
> - space for drbd metadata:
> http://www.drbd.org/users-guide/ch-internals.html#s-metadata
> - performance penalty and choice of replication modes:
> http://www.drbd.org/users-guide-emb/s-replication-protocols.html
> - general tap issues (qdisk vs module, vanilla vs patched 2.6.32, etc.)
> 

Thanks for those links. No, the current plan is not to use DRBD, though
I can't remember the reasons that Dave decided against it.

      parent reply	other threads:[~2011-12-21  8:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-19  2:46 CrossPoolMigration ruijin zhou
     [not found] ` <D14C52F5-9E35-43F1-9D0E-10336DB51BBD-8OfBkYuZ374@public.gmane.org>
2011-12-19  8:22   ` [Xen-devel] CrossPoolMigration Pasi Kärkkäinen
     [not found]     ` <20111219082207.GE12984-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2011-12-20 19:39       ` Mike McClurg
2011-12-21  3:10         ` [Xen-API] CrossPoolMigration Fajar A. Nugraha
     [not found]           ` <CAG1y0seAdN1RiNBmFw-cNrKwAzdi83HaaSGtfCei8JXy31xE2w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-21  8:39             ` Mike McClurg [this message]

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