Re: Internet Cluster Manager -- DOMINO400

Puakma is "free for non-commercial use". You can download a full working 
copy at their website. I'm not sure, though, if that copy has the 
"failover-only" mode code if that's what you need.

http://www.puakma.com/puakma/website.pma/Booster?OpenPage

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 02:13:40 PM:

All of my research says that it is for load balancing and failover....
steps from the help file include  "Determines where replicas reside and
whether they are marked out of service or pending delete. Checks the

server

availability index of each server that contains a replica. Checks the
availability of the server by pinging the HTTP port or the HTTPS port,
depending on the client request. Eliminates any servers that are not
reachable or are RESTRICTED. Eliminates any servers that are BUSY or in

the

MAXUSERS state. Selects a server from those remaining. If there are no
servers remaining, the ICM chooses a server that is BUSY or in the

MAXUSERS

state, if one is available. If there are multiple servers remaining, the
ICM chooses the server with the lightest current workload".

Fail over occurs: When a server fails, When an HTTP client is connected

to

a server that fails, the client receives a message saying that the

server

is not responding. To fail over to a different replica, if one is
available, the user must contact the ICM again. The user can do this in

the

following ways: Click the Back button in the browser one or more times

to

connect to a page through the ICM: Use a bookmark: Type the URL
The user may or may not have to reauthenticate with the new server. This

is

determined by the following factors: If the user already authenticated

with

the new server during this session, no authentication is necessary If

the

HTTP client and the server both support SSL3, reauthentication occurs
automatically


Do you remember what the cost is associated with Puakma's Web Booster?

We

are a small shop and would prefer not to spend a lot. We thought about

just

doing a DNS round robin, but then how do we handle the cache?

We are a small shop, only about 550 mail databases, probably only around
200 web users. Maybe 100 web users and 200 Notes clients connected to

the

system at anyone time.

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




 
             Chris Whisonant  
             <Chris.Whisonant@  
             comporium.com> To 
             Sent by:                  Lotus Domino on the iSeries /

AS400

             domino400-bounces         <domino400@xxxxxxxxxxxx>  
             +sreece=ci.bend.o cc 
             r.us@xxxxxxxxxxxx  
Subject 
                                       Re: Internet Cluster Manager  
             06/27/2006 10:33  
             AM  
 
 
             Please respond to  
              Lotus Domino on  
               the iSeries /  
                   AS400  
             <domino400@midran  
                  ge.com>  
 
 




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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NOTICE: This message contains information which may be confidential. If 
the reader is neither the intended recipient nor a person responsible for 
delivering the message to the intended recipient, you are notified that 
any distribution, copying or retention of this communication is strictly 
prohibited. If you have received this communication in error, please 
notify us immediately by return e-mail, telephone or facsimile. Thank you.