Re: Redundant Server at Lower Spec

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"Lanwench [MVP - Exchange]"
<lanwench@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:%23b%23QQwdtIHA.420@xxxxxxxxxxxxxxxxxxxxxxx
Jim <zjimz@xxxxxxxxxx> wrote:
We are deploying a server setup: two live servers and one redundant
server for complete redundancy. Both are Windows 2003 SP2. Both are
going to be quite high spec, eg, HP DL380 Proliant 3.0 GHz dual or
quad core, 4gb ram etc. What we do is switch the hard drives from the
live to the redundant server if there is a hardware problem. Not a
particular cost effective method but it is bolt and braces.

Have you tested this and demonstrated that it works?

Yes


What I am thinking is that I will buy a lower spec DL380 for the
redundant server. Instead of a 3.0 GHz, I will buy a 2.0 GHz server.
Question is: will the OS accept this should I switch the hard drives?

Probably not.

That is my question, I need a bit more than a probably. As I know it works
no problem at all with the same spec I wanted to know whether it would with
a slighly different spec.


I know all is good when switching on the same spec, I need to know
whether there will be a problem when using different specs.

Thanks.

Instead of this, why not use AD (you don't mention whether you are) and
DFS for files? This will also protect you more from physical drive
failure.

You really don't want your disaster recovery to consist of opening up a
server & unscrewing a hard drive, even if your Windows install *will* work
on dissimilar hardware, which it is unlikely to do.


It's only a question of popping SAS drives out and inserting in new server,
2 min job. I am using AD, and do already have a DFS. This is a spec required
by a provider using an Oracle db.


.

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