Yes I am using a FE/BE topology. This issue is occurring after I have moved one test user to the newly added backend exchange server. OWA only resides on the FE server. However I am able to login while accessing the backend server directly. Thanks & Regards Mitul Zaveri From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Mahmoud Amin Ismail Sent: Tuesday, March 18, 2008 1:14 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Adding Additional Exchange Backend Server Check this: http://support.microsoft.com/kb/823159 are you having a FE/BE topology..? or you are accessing owa on each of the two server..? Mahmoud Amin From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Mitul Zaveri Sent: Tuesday, March 18, 2008 9:07 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Adding Additional Exchange Backend Server Hi All: We have added a new Exchange backend server in the current setup and tried moving a test user mailbox using ESM. The process was completed successfully. However when we are trying to check the same using OWA it is giving "HTTP/1.1 503 Service Unavailable". Please help me on this. Thanks & Regards Mitul Zaveri From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jason Sherry Sent: Monday, March 17, 2008 10:59 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Adding Additional Exchange Backend Server 1. Make the new server Exchange 2007 . Read: http://www.msexchange.org/tutorials/Transitioning-Exchange-2000-2003-Exchang e-Server-2007-Part1.html or similar articles that cover migrating to E2k7 and retiring your E2k7 servers . Recommend going with a CCR cluster, which requires at least 3 E2k7 server (CCR node 1, CCR node 2, HUB & CAS server) o If you call all-in-one then HUB, CAS, & MBX roles can be on one system . If you don't go CCR then at least setup LCR . If you do goto E2k7, you will need to replace your FE with a E2k7 CAS server before you move mailboxes to E2k7 2. Recommend adding at least one addition DC. Jason Sherry - Technology Strategist, MCSE: M, Microsoft MVP From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Kamuni, Prabhakar Sent: Monday, March 17, 2008 3:05 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Adding Additional Exchange Backend Server Since there is only 1000 Mailboxes in the Organization, new Back end server should be a well versed solution. I will recommend you to distribute the mailboxes, so everything should go ok. Thanks and Regards PRABHAKAR KAMUNI | System Analyst| Enterprise Computing Group Unisys Global Services India | 135/1 Residency Road | Bangalore | Business Phone +91 4159 4828|Net 7594828 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. _____ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of James Chong Sent: Monday, March 17, 2008 9:43 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Adding Additional Exchange Backend Server No cons really; this is the correct step. The only con is probably to considering migrating to 07 which will give you a that significant IO reduction via incremental memory. James Chong Sr. Systems Engineer Simplexity, LLC. 11130 Sunrise Valley Drive, Suite 300 Reston, VA 20191 O (703) 657-4612 C (703) 863-1483 _____ From: exchangelist-bounce@xxxxxxxxxxxxx [exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Mitul Zaveri [mitul@xxxxxxxxxxxxxxxxxxxxx] Sent: Saturday, March 15, 2008 7:23 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Adding Additional Exchange Backend Server Hi All: The Current Exchange Setup is as follows: # Frontend - Backend Setup # 1 Frontend Server (with RPC over HTTPs proxy) + 1 Backend Server (1000 mailboxes) + 1 Domain Controller # Windows 2003 Enterprise Server (SP2) + Exchange 2003 Enterprise Server (SP2). We are planning to add an additional backend server with higher disk and I/O capacity and move the mailboxes on the new server. The steps are broadly outlined as below: 1. Additional Server joining the Existing windows domain 2. Installing Exchange server joining the Existing Exchange Organization. 3. Creating Multiple Mailbox Stores to distribute Mailboxes between stores. 4. Moving mailboxes to a New Exchange Server Can somebody please guide me through the pros/cons of this setup or pre-defined checklist that one needs to take care of in this kind of migration. Thanks & Regards Mitul -- **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. NetMagic Solutions Pvt. Ltd. has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. 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