[Sheepdog] Backup/Images

[Mark Pace]

On 10/7/2011 1:20 AM, MORITA Kazutaka wrote:

- hide quoted text -
> Other than the storage size issue, the backup node would be a
> bottleneck if there are many VMs. The backup node requires a huge
> amount of disk space and bandwidth, but if we could use such machine,
> we wouldn't need a clustered storage system. However, on a small
> cluster environment with a few nodes, the backup node idea looks good.
> If someone sends a patch to support it, I'll accept it.  Thanks,
> Kazutaka 
I'm not sure I agree.  Shared storage is a single point of failure and
the reason we're looking to Sheepdog is the ability to survive a shared
storage outage.  Pumping a shared storage box up to provide a backup
location is not nearly as expensive as creating a redundant/replicated
shared storage environment that is capable of serving virtual machines
properly.  But, that being said, your absolutely correct in that machine
is going to be beefy in large environments, etc.

Now, I'm not a programmer, but would happily pay for someone to write it
-- if anyone is interested, please contact me.


Mark Pace

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