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EAS Backup Server Setup

5 posts in General Discussion (old) Last posting was on 2000-03-10 22:51:11.0Z
Scott C. Steele Posted on 2000-03-10 20:53:33.0Z
Newsgroups: sybase.public.easerver
From: "Scott C. Steele" <ssteele000@aol.com>
Subject: EAS Backup Server Setup
Date: Fri, 10 Mar 2000 15:53:33 -0500
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Article PK: 157625

I have a customer that wants to do the following:

If their production box goes down, they want to route requests to a backup
box. On the backup box, they want to know if two instances of EAServer can
be running (at the same time or, independently whatever is recommended).
They want to use one instance for the production backup and keep the other
separate for development. Does anyone have any recommendations? At a
minimum it seems that the client application would need to check the result
code when they make a connection request, then, connect to the backup box on
a failure.

Platform: NT
EAS Ver: 3.5

Thanks,
Scott


Dave Wolf [Sybase] Posted on 2000-03-10 21:11:55.0Z
Newsgroups: sybase.public.easerver
From: "Dave Wolf [Sybase]" <dwolf@sybase.com>
Subject: Re: EAS Backup Server Setup
Date: Fri, 10 Mar 2000 16:11:55 -0500
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Article PK: 157620

There is no way to do "warm standby". Just setup a cluster and LB between
them both. Why do they want a backup rather than to just LB between the
two. There's no price break :)

Dave Wolf
Internet Applications Division

"Scott C. Steele" <ssteele000@aol.com> wrote in message
news:F4TEfNti$GA.111@forums.sybase.com...
> I have a customer that wants to do the following:
>
> If their production box goes down, they want to route requests to a backup
> box. On the backup box, they want to know if two instances of EAServer
can
> be running (at the same time or, independently whatever is recommended).
> They want to use one instance for the production backup and keep the other
> separate for development. Does anyone have any recommendations? At a
> minimum it seems that the client application would need to check the
result
> code when they make a connection request, then, connect to the backup box
on
> a failure.
>
> Platform: NT
> EAS Ver: 3.5
>
> Thanks,
> Scott
>
>


Ken Ream Posted on 2000-03-10 22:33:26.0Z
Newsgroups: sybase.public.easerver
Reply-To: "Ken Ream" <reamk@msx.upmc.edu>
From: "Ken Ream" <kream@zbzoom.net>
Subject: Re: EAS Backup Server Setup
Date: Fri, 10 Mar 2000 17:33:26 -0500
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Article PK: 154412

Dave,

One reason we were looking to that (at one time) was we put extra money in a
big beefy
dual processor primary box and licensed both processors. We have a lesser
machine
(single processor) for a secondary server. The thought was we'd get better
performance
out of the big box and go to the other only when it went down. This was
with 3.0 and with
no control over the load-balancing mechanism, we we're afraid of the lighter
machine slowing
things down. This was before we realized FO was tightly coupled with LB.

Now with 3.5 and the ability to weight LB, I'm less concerned about the
lighter machine
getting too much of the work.

Dave Wolf [Sybase] <dwolf@sybase.com> wrote in message
news:4BUEbXti$GA.302@forums.sybase.com...
> There is no way to do "warm standby". Just setup a cluster and LB between
> them both. Why do they want a backup rather than to just LB between the
> two. There's no price break :)
>
> Dave Wolf
> Internet Applications Division
>
>
>
> "Scott C. Steele" <ssteele000@aol.com> wrote in message
> news:F4TEfNti$GA.111@forums.sybase.com...
> > I have a customer that wants to do the following:
> >
> > If their production box goes down, they want to route requests to a
backup
> > box. On the backup box, they want to know if two instances of EAServer
> can
> > be running (at the same time or, independently whatever is recommended).
> > They want to use one instance for the production backup and keep the
other
> > separate for development. Does anyone have any recommendations? At a
> > minimum it seems that the client application would need to check the
> result
> > code when they make a connection request, then, connect to the backup
box
> on
> > a failure.
> >
> > Platform: NT
> > EAS Ver: 3.5
> >
> > Thanks,
> > Scott
> >
> >
>
>


Dave Wolf [Sybase] Posted on 2000-03-10 22:51:11.0Z
Newsgroups: sybase.public.easerver
From: "Dave Wolf [Sybase]" <dwolf@sybase.com>
Subject: Re: EAS Backup Server Setup
Date: Fri, 10 Mar 2000 17:51:11 -0500
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Article PK: 157618

Ahh OK. Yeah the weighted or dynamic LB would take care of all of that.

Dave Wolf
Internet Applications Division

"Ken Ream" <kream@zbzoom.net> wrote in message
news:tch1gFui$GA.202@forums.sybase.com...
> Dave,
>
> One reason we were looking to that (at one time) was we put extra money in
a
> big beefy
> dual processor primary box and licensed both processors. We have a lesser
> machine
> (single processor) for a secondary server. The thought was we'd get
better
> performance
> out of the big box and go to the other only when it went down. This was
> with 3.0 and with
> no control over the load-balancing mechanism, we we're afraid of the
lighter
> machine slowing
> things down. This was before we realized FO was tightly coupled with LB.
>
> Now with 3.5 and the ability to weight LB, I'm less concerned about the
> lighter machine
> getting too much of the work.
>
> Dave Wolf [Sybase] <dwolf@sybase.com> wrote in message
> news:4BUEbXti$GA.302@forums.sybase.com...
> > There is no way to do "warm standby". Just setup a cluster and LB
between
> > them both. Why do they want a backup rather than to just LB between the
> > two. There's no price break :)
> >
> > Dave Wolf
> > Internet Applications Division
> >
> >
> >
> > "Scott C. Steele" <ssteele000@aol.com> wrote in message
> > news:F4TEfNti$GA.111@forums.sybase.com...
> > > I have a customer that wants to do the following:
> > >
> > > If their production box goes down, they want to route requests to a
> backup
> > > box. On the backup box, they want to know if two instances of
EAServer
> > can
> > > be running (at the same time or, independently whatever is
recommended).
> > > They want to use one instance for the production backup and keep the
> other
> > > separate for development. Does anyone have any recommendations? At
a
> > > minimum it seems that the client application would need to check the
> > result
> > > code when they make a connection request, then, connect to the backup
> box
> > on
> > > a failure.
> > >
> > > Platform: NT
> > > EAS Ver: 3.5
> > >
> > > Thanks,
> > > Scott
> > >
> > >
> >
> >
>
>
>
>


Dean Jones [Team Sybase] Posted on 2000-03-10 21:13:57.0Z
Newsgroups: sybase.public.easerver
From: "Dean Jones [Team Sybase]" <dean_no_spam_@powerobjects.com>
Subject: Re: EAS Backup Server Setup
Date: Fri, 10 Mar 2000 15:13:57 -0600
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Article PK: 157622

IMO - EAServer does not get setup like a database server. I would load two
copies of EAServer in a cluster and call components using high-availability
and fault tolerance. Now if one server is down calls will automatically go
to the other app server.

You can load two copies of EAServer on one box. But listen on different
ports and load under different directory, i.e., different repository.

--

Dean Jones, CPD Professional
Team Sybase
PowerTeam, Inc.

Seminar on April 26 and 27, Don't Miss it!
www.powerobjects.com/seminar

http://www.powerobjects.com

Scott C. Steele <ssteele000@aol.com> wrote in message
news:F4TEfNti$GA.111@forums.sybase.com...
> I have a customer that wants to do the following:
>
> If their production box goes down, they want to route requests to a backup
> box. On the backup box, they want to know if two instances of EAServer
can
> be running (at the same time or, independently whatever is recommended).
> They want to use one instance for the production backup and keep the other
> separate for development. Does anyone have any recommendations? At a
> minimum it seems that the client application would need to check the
result
> code when they make a connection request, then, connect to the backup box
on
> a failure.
>
> Platform: NT
> EAS Ver: 3.5
>
> Thanks,
> Scott
>
>