Re: Failover



John Schaeffer wrote:
On Mar 30, 11:45 am, Malke <ma...@xxxxxxxxxxxxxxx> wrote:

ame...@xxxxxxx wrote:


Here is a good one:

I have a client that runs XP on his desk PC. He is on his own
internal network. He wants another PC so the first PC will have a
real-time failover. If the first PC goes down, the second PC will
come up immediately.....

Is this even possible? The WHY is not really my concern. But I am
wondering if this is possible. None of the internal PC's have a fixed
IP. So, I'm lost on what to do here........

As Bob I said, there is no way the backup computer could magically know when
the main computer failed. But your client (or you doing it for him) can
routinely clone the system drive of the main computer and put the clone in
the closet. If there is a failure, he (or you doing it for him) can pull
out the backup cloned drive and put it in the main machine. Obviously the
cloning would need to be done regularly. You can do this with something
like Acronis True Image, which will also do the incremental backups I refer
to below.

Data should be kept separate from the system drive on the main computer
using a second internal hard drive and regularly backed up to an external
hard drive.

If you do it this way, getting back up and running will be only a matter of
a few minutes.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!http://www.elephantboycomputers.com/#FAQ


Well, I suggested the backup/clone thing. But that does not seem to
satisfy him. He basically wants to duplicate something like a Unix
box failover, or some Oracle parallel server concept......

I doubt this can be done in an XP or Vista environment......



http://www.crn.com/software/201304195

Double-Take provides high availability and failover in case of a server-down situation. It's a great alternative to Microsoft's Cluster Service because it's less expensive and much easier to install for smaller businesses that can't afford or maintain a server cluster. Licenses cost $2,995 for each server in the mirror. Double-Take claims it's as easy as installing antivirus on your server. AppTech engineers would not go so far as to say that, but the documentation is thorough and easy to follow.

.

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