Re: Internet Cluster Manager

ICM is a software based solution.  It is designed for smaller deployments 
and is part of your Domino license.

IP sprayers , which are hardware based , are designed for scalable 
solutions delivering higher availability than ICM.

 
Walter Scanlan 
Senior Software Engineer
WPLC products for System i
507-286-6088
wscanlan@xxxxxxxxxx

"Quality is remembered long after price is forgotten"




Chris Whisonant <Chris.Whisonant@xxxxxxxxxxxxx> 
Sent by: domino400-bounces+wscanlan=us.ibm.com@xxxxxxxxxxxx
06/27/2006 12:45 PM
Please respond to
Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>


To
Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
cc

Subject
Re: Internet Cluster Manager






Rob, ICM "is" the IBM solution - it's part of Domino.

I agree that this would just be shifting the failure over to another 
single point. However, you could run ICM on another DPAR if you wanted. 
With ICM and Puakma, you could run either on any box running Windows or 
Linux. Both would prove to be a single point of failure though.

Chris Whisonant
Comporium
Senior Mid-Range Systems Administrator
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
IBM Certified Associate Developer - Lotus Notes and Domino 6/6.5
803.326.7270 | 803.326.6142 fax

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on 
06/27/2006 01:41:33 PM:

IBM "might" have a solution for this.  One area to research is Sametime 
failover.  We tried using a DNS sprayer.  You know, you go to 
sametime.dekko.com and it sends you to either sametime01/dekko or 
sametime02/dekko.  Problem is that with a DNS sprayer if one or the 

other 

so much as is ping capable then they won't care if the sametime01 server 

is down.  But, in effect, you shift your single point of failure from 

the 

dpar to some wintel box running this utility.
I wonder if this solution would work for you?
I forget the details on what it was, perhaps reading the sametime 

manuals, 

etc would be a place to start.

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





Chris Whisonant <Chris.Whisonant@xxxxxxxxxxxxx> 
Sent by: domino400-bounces+rob=dekko.com@xxxxxxxxxxxx
06/27/2006 01:33 PM
Please respond to
Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>


To
Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
cc

Subject
Re: Internet Cluster Manager






Scott, I have seen a good bit of negative feedback with ICM. I have been 

testing out Puakma's Web Booster. It will do load balancing/failover for 

http. Actually, from my understanding, ICM will only do load balancing, 
right? In my environment I don't want http to be load balanced because 

our 

cluster iSeries has a lot less horsepower. Puakma didn't initially have 
this, but they have since updated it to run in strict failover mode.

I also know someone who is running a BlueCoat SG appliance for this.

Also, I have not tested ICM personally, but when I was researching this 
last year I saw where customers didn't recommend ICM.

Chris Whisonant
Comporium
Senior Mid-Range Systems Administrator
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
IBM Certified Associate Developer - Lotus Notes and Domino 6/6.5
803.326.7270 | 803.326.6142 fax

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on 
06/27/2006 12:55:23 PM:

Is anyone using ICM? if so how is it working for you? I would like to 

use

it for our mail servers, but I also want to hear what anyone you think
before I configure it. Is it going to be a performance hit to our mail
servers? is it pretty seamless? What about the unread marks problems?
please any feedback would be greatly appreciated, good or bad.

Thanks,
Scott Reece
System Administrator
City of Bend
sreece@xxxxxxxxxxxxx
Office - 541-388-4426


"Once you say you're going to settle for second, that's what happens 

to 

you

in life. "  --JFK


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