April 18, 2023 © University of Reading 2007 www.reading.ac.uk

IT Services

Exchange UpdateThe past & the future

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Overview of service

• Exchange versions are Exchange 2003 SP2

• Current quotas:– Warning @ 1.5Gb– Prohibit Send @ 2Gb– No Prohibit Receive

• Access via: Outlook, IMAP, POP, HTTPS (OWA), RPC/HTTPS and ActiveSync

• Mobile access– latest version is Mobile 6 (Mobile 5 and 2003 will still

work)– Latest ActiveSync version is 4.5.0– Windows Vista uses the Mobile Device Centre

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Overview – Mailbox size increase

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Exchange Migration project

• Move all staff to exchange service

• Staff should not notice the migration

• Staff should be able to use their choice of email client

Aims & Goals

To this end we set up IMAP and POP proxies from the UNIX server to the Exchange server. This meant that few or no changes need to be made to the clients

Team of people working on this:

Chris De La Force, Jean Guo, Christine Storey, Claire Thompson, Chris Wakelin. And me.

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Exchange Migration Project

• Started in earnest last year

• New users went on from September 2007

• 2 Phases:– Phase 1: - The easy users– Phase 2: - The difficult ones.

• Staff members moved overnight, during this time they had no access to their mailbox.

• Remarkably few complaints.

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Exchange Migration Project

Phase 1:

Move staff accounts with less than 1.2Gb mail, no resends and using IMAP

• There are now 3421 mailboxes on the Exchange servers– 302 Users remaining– 24Gb of data

• These will be finished over the next couple of months.

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Exchange Migration Project

Phase 1

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Exchange Migration Project

Phase 2

• Approximately 333 users, 264Gb of data– 127 users with Non-Trivial resends– 98 users with > 1.2Gb data– 114 POP3 logins

• 2 users with POP3 logins and Non-Trivial Resends

• 4 users with Non-Trivial resends and > 1.2Gb

• No-one has the grand slam!

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Exchange Migration Project

Phase 2 – Non Trivial resends

• We are cross-referencing against the Trent database, to remove people who have left, but still in user reg, or who are “external” users

• We will then migrate and put the rules in by hand.

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Exchange Migration Project

Phase 2 – POP3 Logins

• POP3 is no longer required.

• Identify cases where it is used for historical reasons and attempt to provide an alternative.

Phase 2 – Large mailboxes

• Completely unquota’d is undesirable

• Explore use of the Vault.

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Exchange – The Future• Step 1: Get swanky names for future email projects….

Project EVE – Enterprise Vault for Exchange

Project HAVE – High AVailability for Exchange

• Step 2: Explain Projects.

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HAVE

Goals:

• Provide a more resilient Exchange service– Clustered servers– Load balanced front-ends– Make sure that we have to work fewer hours

• Allow for unexpected load increases

We want to move from the HAVE-nots to the HAVEs

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FrontEnd

HAVE-not

BackEnd

Live Datastore DR DatastoreSnapmirror

iSCSI

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Phase 1:FrontEnd

NLB

HAVE

Phase 2:BackEndCluster

Live Datastore DR DatastoreSnapmirror

iSCSI

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HAVE

Phase 1: FrontEnd – should be in place shortly

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HAVE

Phase 1:

• NEW URL – www.owamail.reading.ac.uk

• Old one will still work

• Will provide HTTP and RPC/HTTPS access immediately.

Phase 2:

• Esteem are providing consultancy

• Dell servers are now on order

• Some disruption is inevitable.

• Timescale TBC

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EVE: Enterprise Vault for Exchange

• Service will be targeted at users with large mailboxes.

• Trial:– 10 windows & Outlook users– > 1.5Gb mailstore– ‘Normal’, rdg-home users– Extra support provided– 2 policies: 13 months & 24 months

• Once this has been proved we will look at a terminal server for non-windows users.

• Any developments by Symantec will be monitored.

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Summary

• Exchange migration:– Phase 1 nearing completion. – Phase 2 will kick off soon after

• HAVE – High AVailability for Exchange– Will provide better resilience and redundancy– Phase 1 – FrontEnd nearing completion– Phase 2 – BackEnd in planning stages

• EVE – Enterprise Vault for Exchange– Trial planning stage in progress