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Virtual Server 2005

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VS2005 Disaster Recovery

Source: microsoft.public.virtualserver
Sent: 11/29/2007
From: RobertC
Message:

I am wondering about Guest OS disaster recovery and can't find out if this is
even possible.
I have 2 Server 2003R2-64bit physical servers and each has VS2005 with 2
2003R2-32-bit Guest OS's, and I need to provide some DR for the Guest OS's.

If I have one physical server "go down", I would like to be able to start
those Guest OS's on the other server, but if the VHDs are stored on the one
that is down, i am out of luck.

Can I store the VHDs on a fileshare and open it up from there? Or will i
experience a performance hit because of the network overhead?

I have read that the VHDs should be on a disk that isn't the system disk,
and away from the swapfile, but does that mean that it still has to be on a
physically attached drive? I have FC disks on the Host OS systems, but it
doesn't help if the host is down as I would have to mount the drives on the
other system before I could use them. I am looking for a simplier way than
that.

Thanks

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Related Messages

Re: VS2005 Disaster Recovery

Sent: 11/30/2007
From: daveberm <(email address - cut out)>
Message:

On Nov 29, 4:11 pm, RobertC <(email address - cut out)> wrote:

You are not going to be able to run your VHD's on a simple file
share. You can however set up an iSCSI storage server and then run
them there. You should check out Datacore's SAN Melody which can turn
a simple Windows Server into an iSCSI device. However, doing so just
moves your single point of failure (SPOF) from your Virtual Machine
Server out to your iSCSI server. You can set up MS Virtual Server in
a MSCS cluster, but again, the shared storage is a SPOF.

In order to achieve true redundancy, you will need to implement some
kind of data replication. Your choices are storage based or host
based replication. There are plenty of options for either, it all
depends on your budget and requirements. For storage based
replication, ask your vendor of choice (HP, IBM, Dell, EMC, etc.),
they all have solutions. For host based replication, there are
numerous choices as well from Vendors such as Veritas, CA, DoubleTake
and my company, SteelEye Technology. If you have additional
questions, please feel free to contact me directly through http://www.steeleye.com.

Good luck and let us know how you make out.

Sincerely,

David A. Bermingham, MCSE
Director of Product Management
http://www.steeleye.com

Show quoted text

> I am wondering about Guest OSdisaster recoveryand can't find out if this is
> even possible.
> I have 2 Server 2003R2-64bit physical servers and each has VS2005 with 2
> 2003R2-32-bit Guest OS's, and I need to provide some DR for the Guest OS's.
>
> If I have one physical server "go down", I would like to be able to start
> those Guest OS's on the other server, but if the VHDs are stored on the one
> that is down, i am out of luck.
>
> Can I store the VHDs on a fileshare and open it up from there? Or will i
> experience a performance hit because of the network overhead?
>
> I have read that the VHDs should be on a disk that isn't the system disk,
> and away from the swapfile, but does that mean that it still has to be on a
> physically attached drive? I have FC disks on the Host OS systems, but it
> doesn't help if the host is down as I would have to mount the drives on the
> other system before I could use them. I am looking for a simplier way than
> that.
>
> Thanks

Post Reply | This is Spam! | Mark as Spam

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