Sorry Typo Denial of Service DOS or DDOS. On Thu, Mar 17, 2011 at 10:19 AM, patrick zandi <remedy...@gmail.com> wrote:
> So for a DDSO all your customers are down. > till it is resolved, hours later? Geographically separated servers give you > Continued functionality during a crisis. > > > On Thu, Mar 17, 2011 at 9:08 AM, Terje Moglestue <te...@moglestue.com>wrote: > >> Well, >> >> I am not using DSO. I have had great success with geographically separated >> mid tier servers. Our users in Japan find the application on average 3 >> seconds faster for every operation accessing a local web server then >> accessing a web server in UK. The AR Server located in UK. >> >> I am now looking into the possibility to improve the overall network >> performance between AR Server and every local mid-tier server. By giving the >> network traffic between the serves higher priorities - I hope to improve the >> overall performance. You can control server-to-server traffic - you have no >> or limited control over end users accessing the mid-tier. >> >> With world-wide support centers - using the same AR installation, the plan >> is to have local web serves/mid-tier servers to improve end-to-end >> performance. >> >> Am I missing out of anything here? >> >> ARS 75p7, ITSM 75p1, mid-tier servers 7.6.4. Platform Windows Server 2008 >> 64 bits. >> >> ~ >> Terje >> >> >> ________________________________ >> >> From: Action Request System discussion list(ARSList) on behalf of patrick >> zandi >> Sent: Wed 16/03/2011 04:52 PM >> To: arslist@ARSLIST.ORG >> Subject: Re: ITSM 7.6.4 >> >> >> ** Geographically separated mid-tiers is not recommended. >> making servers geographically separated (using DSO) and mid-tiers with >> them is. >> The network traffic between a mid-tier and the ARS server should be >> protected, at a high level of encryption, and to further put it >> geographically separated over a wan is a performance killer. >> >> IMHO >> >> Put the mid-tier and the Server on the same Physical Switch (reducing >> time) >> use a group of mid-tier's (they are just clients) load balanced to >> increase speed. >> Use the pre-load to increase speed, Tune the oracle tables associated with >> the common IO calls people are having. >> The top 10 >> user indexes appropriately >> use efficient queries >> consider using set fields actions in filters instead of active links >> avoid using filters which perform run process >> stagger escalations times >> use direct sql, $PROCESS$, sparingly >> avoid sending notifications to many addressees >> minimize the number of diary and long character Fields >> avoid admin tool def changes during peak hours >> keep you application design simple >> implement DSO >> allocate enough shared memory in the tomcat and server >> provide adequate computer and network resource. >> >> >> >> On Wed, Mar 16, 2011 at 12:26 PM, Roger Justice <rjust2...@aol.com> >> wrote: >> >> >> ** The first way to imporve WEB client performance is to locate the >> Mid_Tier servers closer to you users. >> >> >> >> >> -----Original Message----- >> From: Gard, Richard J <rjg...@statestreet.com> >> To: arslist <arslist@ARSLIST.ORG> >> Sent: Wed, Mar 16, 2011 12:23 pm >> Subject: Re: ITSM 7.6.4 >> >> >> David, >> >> We are planning for our next global deployment of ITSM (7.6.03/4). >> The new >> solution will hopefully address considerable performance issues >> experienced by >> remote users of our current 7.1 deployment. The current deployment >> is located >> on the eastern seaboard where a large portion of my customer base >> is located. >> However, my clients in Asia Pacific (fastest growing) and Europe >> have complained >> about slow performance. What is the recommended implementation of >> ITSM 7.6.03/4 >> that will present the best response times for all users of the >> system? We have >> considered placing mid tier and app servers in the remote regions, >> but I don't >> have data to support this design. The reference architecture >> document >> ( >> http://documents.bmc.com/supportu/documents/49/03/114903/114903.pdf) does >> not >> speak to this design challenge directly. Suggestions greatly >> appreciated. >> >> Best regards, >> Rich >> ? >> ? >> ? >> ? >> GIS-ISS-SEM >> Service Technology Development Manager >> ITIL Practisioner Certified: Support and Restore >> -----Original Message----- >> From: Action Request System discussion list(ARSList) [ <mailto: >> ars_attend%20WWRUG11%20www.wwrug.com%20ARSlist:> >> >> >> >> _______________________________________________________________________________ >> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org >> attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are" >> > > > > -- > Patrick Zandi > -- Patrick Zandi _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are"
