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xen-api
Re: [Xen-API] Alternative to Vastsky?
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Now that VastSky has been reported to be on hiatus atleast, I'dd like to propose GlusterFS as a candidate. It is well tested and actively developed and maintained project. I'm personally really interested in "RDMA version". It should provide really low latencies and since 40Gbit InfiniBand is a bargain compared to 10GbE, there should be more than enough throughput availeable.
This would require IB support on XCP but my thinking is, it would be beneficial in many other ways. For example I would imagine RDMA could be used with live migrates.
-Henrik Andersson
On 20 April 2011 01:10, Tim Titley <tim@xxxxxxxxxx> wrote:
Has anyone considered a replacement for the vastsky storage backend now that the project is officially dead (at least for now)?
I have been looking at Ceph ( http://ceph.newdream.net/ ). A suggestion to someone so inclined to do something about it, may be to use the Rados block device (RBD) and put an LVM storage group on it, which would require modification of the current LVM storage manager code - I assume similar to LVMOISCSI.
This would provide scalable, redundant storage at what I assume would be reasonable performance since the data can be striped across many storage nodes.
Development seems reasonably active and although the project is not officially production quality yet, it is part of the Linux kernel which looks promising, as does the news that they will be providing commercial support.
The only downside is that RBD requires a 2.6.37 kernel. For those "in the know" - how long will it be before this kernel makes it to XCP - considering that this vanilla kernel supposedly works in dom0 (I have yet to get it working)?
Any thoughts?
Regards,
Tim
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