Making Vantage 8.03 fault tolerant

Hello....We just installed our 8.02.09F, & will be updating to 8.03 in
a month or so...well before we go live.

We have one production server, quad dual-core processor, Server 2003
Enterprise, 8G RAM. We also have an identical hardware platform for
our Development/Test environment, only it has just 2 processors, 4G
RAM, & Server 2003 Std. In case of hardware failure on our production
system, it would be relatively easy to move the environment over to
the dev box, hopefully within an hour or less based on our latest DR
tests. We also use MSSQL, but not in clustered fashion.

There is a product called 'Double-Take', which can automate the
switchover...it costs around $6000 or so.

I'd be happy to answer anything else you'd care to ask on how we're
planning for DR on our system...we think this is a good way to start,
at least.

Cheers,
- Gary -


--- In vantage@yahoogroups.com, "rhills2903" <rhills56@...> wrote:
>
> We are bringing up Vantage 8.03 with a MS SQL backend.
>
> Currently we are on a single system, but I am concerned about fault
> tolerance and was wondering what others have done to keep production
> running if the main server goes down.
>
> I know SQL Server has some capability with clustering and such, but
> since Progress is the database API, would the proper checkpointing and
> rollback occur correctly?
>
> Thanks in advance
>
> Rod Hills
>
We are bringing up Vantage 8.03 with a MS SQL backend.

Currently we are on a single system, but I am concerned about fault
tolerance and was wondering what others have done to keep production
running if the main server goes down.

I know SQL Server has some capability with clustering and such, but
since Progress is the database API, would the proper checkpointing and
rollback occur correctly?

Thanks in advance

Rod Hills
We are using an application called SurviveIT (now called High Availability) by Computer Associates (now called "Trying to Save Their A").

We have a duplicate model server - running slower processors and a little less ram. The software replicates the selected folders to the backup server. It can be setup to failover automatically or manually. We chose manual failover, because of "false positive" conditions can arise in our configuration. When failover occurs, it will take the server name and ip address of the primary and start any processes / services you designate. We are on 6.1, so the entire EPIC60 folder is continuously sync'd to the backup server. We are running gigabit and really do not notice anykind of performance hit using this product.

Occasionally, the replication will stop because of some kind of disruption somewhere - haven't been able to definitively identify the cause yet. Just click the start arrow and off it goes. This product was somebodies Editior's Choice when we purchased about 3 years ago. And as Murphy's Law would have it - Since we have it and use it, we haven't needed it.

Another package out there is Double-Take = www.doubletake.com

Good Luck,

Charles

----- Original Message -----
From: rhills2903
To: vantage@yahoogroups.com
Sent: Wednesday, September 27, 2006 1:24 PM
Subject: [Vantage] Making Vantage 8.03 fault tolerant


We are bringing up Vantage 8.03 with a MS SQL backend.

Currently we are on a single system, but I am concerned about fault
tolerance and was wondering what others have done to keep production
running if the main server goes down.

I know SQL Server has some capability with clustering and such, but
since Progress is the database API, would the proper checkpointing and
rollback occur correctly?

Thanks in advance

Rod Hills





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