MsExchange Blog Spot Telnet25

May 25, 2010

BlackBerry BES Agents & Single Exchange Server lookup if mailbox gets moved from DB1 to DB2 within Same Exchange Server….. What caused BB handheld to break????

Filed under: General — telnet25 @ 2:12 am

Moving Exchange users within the same Exchange server from DB to another DB will break handheld device and you will end up removing the user from BB server and adding it back again to get it working.

The reason why BB will end up not working is related the way how BES does scan to Exchange server. BES uses DN ( distinguish name of the Exchange server  ) to scan mailboxes, hence moving users within same exchange server will end up causing BB agents to hose up and not working. ( DN is the same, BB agents will end up mapping to MB which they think the user is located on even you move the MB for same user to another DB within same exchange server.

It basically isn’t smart enough to identify new DB location for the same user, due to LDAP lookup starts with DN of the Exchange server which is not changing and stops there………..

So do we have to assign the static agent for the BB users before we move them within the same exchange server or afterwards? Here Jeff Bakin comes to rescue (-:

  • Got to put users on a static agent after you move their mailboxes
  • When you assign a static agent, it tells BES to do a MAPI rescan of the user, and thus finding the user in the new storage group.  If you static agent the user before you move the MB, then the static agent will do the MAPI rescan, find the same mailbox location, then mailbox will get moved, and BES will break anyway.

To assign BlackBerry device users to a static mailbox agent, complete the following steps:

  1. In BlackBerry Manager, select a BlackBerry device user to be assigned to a static agent.
  2. Click Edit Properties.
  3. In the Properties screen, select Advanced.
  4. Set Enable Static Mailbox Agent to true.
  5. Set Mailbox Agent ID to a value between 200-399.

Of course if you are moving users within two different Exchange servers you don’t have to worry about this (-:

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

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May 18, 2010

BPOS Stories………………….

Filed under: General — telnet25 @ 8:18 pm

Many people ask so many times which is better and why such company should pick one or the other. before I reveal the story I would like to emphasize being honest the MB cost was hide factor for many businesses but again with Exchange 2010 , now questions comes up what is really left when you take the cost away ???????    Remember Exchange 2010 MB cost is shinning I have seen figures less than 4bucks per mailbox, which is incredible affordable considering the value you get.

From fallowing article, interesting to read Why Serena Software is Going with BPOS, A Customer Story

They [Microsoft] deliver trustworthy, enterprise-class solutions – with the performance, security, privacy, reliability and support we require.
Using Office, SharePoint and Exchange will allow us to collaborate more effectively internally and with customers and partners, many of whom use the same technologies, and we can do so without having to deal with content loss or clients being unable to open or edit a document.
There are alternatives on the market that promise lower costs, but in our experience, this is a fallacy

Read more…………

http://blogs.technet.com/msonline/archive/2010/05/18/customer-story-why-serena-software-is-going-with-bpos.aspx

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

May 15, 2010

Exchange is unable to mount the database that you specified,Error code: MapiExceptionBusy,Unable to mount database…

Filed under: General — telnet25 @ 4:28 am

Problem: After dismounting Database and trying to mount it, you receive fallowing error on Clustered mailbox server, Exchange 2007,trying to bring the database online from EMC is not working,

——————————————————–

Microsoft Exchange Error

——————————————————–

Failed to mount database ‘SG15MB1’.

SG15MB1

Failed

Error:

Exchange is unable to mount the database that you specified. Specified database: MailServer1\SG15\SG15MB1; Error code: MapiExceptionBusy: Unable to mount database. (hr=0x8004010b, ec=-2147221237)

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Solution:

  • Open fail over cluster Management
  • Console
  • Click Services and applications
  • Click server name, in the middle pane
  • scroll all the way down “other resources”
  • find the SG shows offline
  • Make a right click and select bring this resource ONLINE

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If you are running off single exchange server check to make sure system attendant service is running, you may have to restart this service to get going.

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

May 11, 2010

How to Dump/Export GAL to CSV file.

Filed under: General — telnet25 @ 9:41 pm

This is one of the most common request comes time to time, although there are many ways to accomplish the task I will show you one of the easiest one.

Log into one of your management server , Csvde.exe is a Microsoft Windows 2000 command-line utility, so open CMD prompted. Copy and paste below…..

CSVDE -f GalDump.csv -r objectCategory=person -l "displayName, title, telephoneNumber, department, mail"

 

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All you need to do it to open the CSV file called GalDump.csv , the fiel will be on the same directory as you ran the command.

If you want everything use this one

CSVDE -f GalDumpAll.csv -r objectCategory=person

 KB555397

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Tips

If you look at the first column you will figured out the attribute names and you can use this to modify the first CSVDE to fit to your needs

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

May 10, 2010

What is your Item Count?

Filed under: General — telnet25 @ 2:21 pm

I hear you are performing troubleshooting on your exchange server and you come cross not the size of mailbox the item count in critical path folders makes the difference. If you did not know this keep reading as I know you will find this post very useful.

Exchange 2000, 2003 and 2007 suffered from I/O fear long time due to new optimized and improved  structure of ESE providing shooter and sequential I/O’s

Exchange does many small, random input/outputs (I/Os) which allows Exchange 2010 to use JBOD configuration with cheap disk ( SATA)

  • Store Schema changes
  • DB I/O size improvements
  • Database cache effectiveness improvements
  • ESE optimizes for new schema

Results:

E2010 reduces the I/O by additional 70% when compared to E2007 and 160% compared to Exchange 2003.

Large item count per folder is an issue due to restricted views (affects large mailbox deployments)

Schema changes of the table structure and deferred index updates greatly improves restricted view performance

Result: Supports 100,000 items per folder

  • Outlook Personal Folder Files (PSTs) are a litigation, security, and management nightmare
  • New Messaging Records Management features
  • Item level policy settings
  • Archive mailbox feature for importing and storing PST data
  • Compliance Officer search capabilities

Result: PSTs can be removed by placing data into Exchange repository and can be searched easily.

After al these good information you decided to look to see what is the item count on your mailbox. Remember you will need to take into consideration of critical path folders which the folders are.

  • Calendar,
  • Contacts,
  • Inbox
  • Sent Items

Version Folder limits

Exchange 2000/2003 5000
Exchange 2007 20.000
Exchange 2010 100.000

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Click here to download

Get-Mailbox -identity dedealoc -ResultSize ‘Unlimited’ | Get-MailboxFolderStatistics | Select-Object -property ‘Date’, ‘Name’, ‘FolderPath’,’ItemsInFolder’, ‘FolderSize’

 

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Note: after installing PGUI if this is your first time and you have no clue what to do

  • make right click on PGUI select new Folder
  • Name the folder anything you like click Apply on the bottom

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Now I assume you download the PS1 I uploaded on my website to your desktop.

Now on the folder . new Script node

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Click open on the file picture  brose the PS script and bring it into PGUI

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Give it a name and click Apply to save it

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As you see it runs as soon as you click on it

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PGUI is the *BEST* tool out there and as you can see it is so efficient and easy to use. You can collect your own PS scripts and make PGUI even more efficient for your environments. At this point export the report to CSV and calculate the folder items mentioned earlier to get the item count.

You can find out your heavy users and educate them how to lessen the  these folders or perhaps go for Exchange 2010 (-: and not worry about 20.000 item count limits at all

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

May 7, 2010

Perfwiz for Exchange 2010 & 2007

Filed under: General — telnet25 @ 8:45 pm

If you have not seen “ Perfwiz for Exchange 2010” by Mark Lagase , you really are missing nice tool you might need to use one day to identify the the bottle neck on your messaging environment. These are pre-set PerWiz template will make your life extremely easy so check it out

E210 PerfWiz

http://blogs.technet.com/mikelag/archive/2010/01/11/perfwiz-for-exchange-2010.aspx

E07 PerfWiz

http://blogs.technet.com/mikelag/archive/2008/05/02/perfwiz-replacement-for-exchange-2007.aspx

here is real nice useful link from Mike site

http://blogs.technet.com/mikelag/archive/tags/Performance/default.aspx

I really like Mike’s site it has tons of great stuff………………..

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

What will Kill your Exchange Server so Quick ???

Filed under: General — telnet25 @ 5:18 am

The performance troubleshooting can be tough time to time as it can be difficult to see or identify the bottleneck. The bottleneck and what to look for when it comes down to performance. Although seeing  Xmas balloon in outlook makes many of the Exchange administrator go bananas, the reality is , the heavy MAPI is easy to influenced and get worst with some many factors. This includes  client side troubleshooting as well as Server side troubleshooting etc.

Most of the issues I have seen so far caused by I/O related issues and problems in Exchange 2003 and 2007 as SAN is big part of complex Exchange and cluster configurations. The worst and most frustrating part is to deal with SAN  and its when problems balls down to IOPS.

Beside Exchange 2007 is complicated already, adding SAN into picture makes is even more complicated.

So imagine , most of the I/O will occur in the DISK resources and Exchange will love to hammer the hard disk logs and databases and outlook goes bananas.

If you are in the situation and need to find out what is going on here is your best friend and tool  ExTRA  ( Exchange Troubleshooting Assistant). You have to got to LOVE this tool as it is incredibly useful.

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bare in mind the basic applies most of the troubleshooting cases. For most of the disk issues here what you need to know at the basic.

Check the performance counter below, they pretty much are explaining what will be the acceptable , upper limit. The bottom line is the PyhsicalDisk Averaged Disk sec/Write got to be <10ms Ideally , and the spikes should never be >50ms.

*** I have seen recently problems when Averaged Disk sec/Write >20ms as result , Outlook famous balloon pops up**** this isn’t quite good experience and hard to explain client why it is happening (-: 

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Also Check out “Perfwiz replacement for Exchange 2007” this is real nice resource, as pre defined counters are there for Exchange 2007

http://blogs.technet.com/mikelag/archive/2008/05/02/perfwiz-replacement-for-exchange-2007.aspx

So what has changed in Exchange 2010? if I have to say one thing made me so happy , dealing with E210, I would say no more SAN and yes less complexity. Having only Exchange administrator eyes on the Exchange servers is great. We no longer need SAN expert to help us configuring or run and maintain Exchange 2010.

I think most of places who are using SAN do not know what to do if they get Exchange off the SAN, going for DAS and implementing DAG seems to be very optimal for most of these places. Huge saving are coming with using cheap SATA disk.

The  I/O  improvement in Exchange 2010 is 60 to 70 percent more compare to Exchange 2007, Investments done by exchange team in store schema and ESE (Extensible storage Engine ) have reduces IOPS by 70 percent more thus E210 is incredibly fast , bringing outstanding user experience not to mention tons of other improvements.

being able to implement JBOD ( bunch of disk ) yes we are talking about cheap SATA disk 7200RPM , with NO RAID , NO RAID controller is stunning. In recent when I see the saving in $$$$ I could not believe my eyes to be honest for large implementations. The saving $$$$ is HUGE. I will be honest I have not seen yet or done JBOD scenario but knowing from some of MVP colloquies  the JBOD is working perfect.

So the future of Exchange change a lot, the other competitors ( Gmail) were depressing Exchange in my personal opinion for the cost when MB cost is 4buks Exchange 2007 MB cost was bit over 16 dollars. Now I am asking myself what will be left when you take that away (-: , E210 MB cost can be less than 4 Bucks not to mention , so many incredible futures and incomparable messaging experience  with any other messaging application.

if you have not had your hands on E210, without wasting too much time go get evaluation copy and see with your own eyes , what does it look like the next generation messaging application.

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

May 4, 2010

How do I open another user’s mailbox in OWA 2010?

Filed under: General — telnet25 @ 8:04 pm

If whatever reason you or someone in your company needs access to someone else mailbox here are easy steps showing how to achieve this goal.

  • login to OWA using your own mailbox email address and password
  • Click on your name in the upper right corner of the window

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  • Type the user name whom mailbox you wish to connect too. In this case I am going to connect mailbox called RBuzon, so I will type the name of the mailbox in the window as fallows

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You get fallowing

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It is obvious as you expected without having proper rights I should not have been able to look others mailboxes.

Connect to your exchange server, find the user you wanted to connect his mailbox too

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Click on “Manage Full Access Permissions” and add your account in there

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Click finish to get out

Try one more time, as you see this time I can access with no issues

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Learning points: You have to assign yourself or given proper permissions to access someone else mailbox rather than yourself. You can use OWA to access this mailbox.

Reference:

Scenario:

  • User name: Dedealoc (he needs access to RBuzon mailbox via OWA)
  • User name: RBuzon

Adding mailbox permission "RBuzon" for user "Dedealoc" with access rights "’FullAccess”

 

Add-MailboxPermission RBuzon -AccessRights FullAccess -User ODedeal

 

Remove-MailboxPermission RBuzon -AccessRights FullAccess -User ODedeal

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Some more similar task can be achieved same way see more PS commands

http://smtp25.blogspot.com/2009/01/how-to-configure-helpdesk-mailbox-and.html

Best regards,
Oz Casey , Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +
Http://smtp25.blogspot.com (Blog
Http://telnet25.spaces.live.com (Blog)
Http://telnet25.wordpress.com (Blog

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