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Understanding Back Pressure Exchange 2007/2010 (DatabaseCheckPointDepthMax parameter)

Erstellt von Administrator am Sonntag 25. Dezember 2011

Free Hard Disk Space for the Message Queue Database Transaction Logs

By default, the message queue database transaction logs are stored at C:\Program Files\Microsoft\ExchangeServer\V14\TransportRoles\data\Queue. Exchange monitors the hard disk space utilization for this location. The EdgeTransport.exe.config file contains a DatabaseCheckPointDepthMax parameter that has a default value of 512 MB. This parameter controls the total allowed size of all uncommitted transaction logs that exist on the hard disk. This parameter is used in the formula that calculates hard disk utilization.

The value of the DatabaseCheckPointDepthMax parameter applies to all transport-related Extensible Storage Engine (ESE) databases that exist on the Hub Transport server or Edge Transport server. This would include the message queue database and the IP filter database.

By default, the high level of hard disk utilization is calculated by using the following formula:

100 * (hard disk size – Max(5 GB, 3*DatabaseCheckPointDepthMax)) / hard disk size

The results of the formula are always rounded down to the nearest integer. By default, the medium level of hard disk utilization is 2 percent less than the high level. The normal level of hard disk utilization is 4 percent less than the high level.

…further details see Source Link!

Source: http://technet.microsoft.com/en-us/library/bb201658.aspx

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Abgelegt unter Exchange, Microsoft Exchange, Troubleshooting | Kommentare deaktiviert für Understanding Back Pressure Exchange 2007/2010 (DatabaseCheckPointDepthMax parameter)

Guide: Administering the offline address book in Outlook 2003 and Outlook 2007

Erstellt von Administrator am Sonntag 25. Dezember 2011

Guide: Administering the offline address book in Outlook 2003 and Outlook 2007

Source: http://support.microsoft.com/kb/841273/en-us

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Abgelegt unter Exchange, Microsoft Exchange, Troubleshooting | Kommentare deaktiviert für Guide: Administering the offline address book in Outlook 2003 and Outlook 2007

Known Bug in Citrix XenServer 5.x: Cannot Delete Windows 2008 Local User Profiles

Erstellt von Administrator am Sonntag 25. Dezember 2011

Known Bug in Citrix XenServer 5.x: Cannot Delete Windows 2008 Local User Profiles

Possible Symptom Scenario:

* Server 2008 x64
* Xenapp 5.+

Source: http://forums.citrix.com/thread.jspa?threadID=280392

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Abgelegt unter Citrix, Server 2008, Troubleshooting | Kommentare deaktiviert für Known Bug in Citrix XenServer 5.x: Cannot Delete Windows 2008 Local User Profiles

Understanding/Configuring/Troubleshooting RPCoHTTPS (Outlook Anywhere) @ Ex2k3

Erstellt von Administrator am Sonntag 25. Dezember 2011

Understanding/Configuring/Troubleshooting RPC over HTTPS (Outlook Anywhere) @ Exchange 2003 Server

USeful Link: http://www.msxfaq.de/clients/oaserver.htm

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Abgelegt unter Exchange, Microsoft Exchange, Server 2003, Troubleshooting | Kommentare deaktiviert für Understanding/Configuring/Troubleshooting RPCoHTTPS (Outlook Anywhere) @ Ex2k3

Server 2003: Systemstate Backup with built-in NTBackup fails

Erstellt von Administrator am Sonntag 25. Dezember 2011

Symptoms:
Volumeschattenkopie-Erstellung: Versuch 1.
„WMI Writer“ hat einen Fehler 0x800423f3 gemeldet. Dies ist Teil des Systemstatus. Der Volumeschattenkopie-Vorgang kann wiederholt werden.

cmd => vssadmin list writers shows:

Verfassername: „WMI Writer“
Verfasserkennung: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
Verfasserinstanzkennung: {0a431d3e-291b-453c-8b2e-496c7db22175}
Status: [9] Fehlgeschlagen
Letzter Fehler: Wiederholbarer Fehler

Im Ereignislog (Quelle: ESENT, Ereignis-ID: 2003) steht folgendes:

wins (1980) Schattenkopie 3: Fixierung wurde abgebrochen.

 

Solution:
– WMI-Dienst beenden
– alle Ordner und Dateien in %systemDrive%\%windir%\system32\wbem\Repository löschen
– WMI-Dienst beende

 

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Abgelegt unter Server 2003, Troubleshooting | Kommentare deaktiviert für Server 2003: Systemstate Backup with built-in NTBackup fails

German WMI FAQ: Windows Management Instrumentation

Erstellt von Administrator am Sonntag 25. Dezember 2011

Linktip!

source: http://www.microsoft.com/germany/technet/datenbank/articles/600682.mspx

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Abgelegt unter Scripting | Kommentare deaktiviert für German WMI FAQ: Windows Management Instrumentation

Time synchronization may not succeed when you try to synchronize with a non-Windows NTP server in Windows Server 2003

Erstellt von Administrator am Sonntag 25. Dezember 2011

Symptoms:
When you try to synchronize your Microsoft Windows Server 2003-based computer to a Network Time Protocol (NTP) server that is not running Microsoft Windows, the synchronization may not succeed. When this problem occurs, the following events may be recorded in the System log:

Event Type: Information Event
Source: W32Time
Event Category: None
Event ID: 38

Event Type: Warning
Event Source: W32Time
Event Category: None
Event ID: 47

Event Type: Error
Event Source: W32Time
Event Category: None
Event ID: 29

Cause:
This problem may occur when your computer sends synchronization requests by using symmetric active mode. By default, Windows Server 2003 domain controllers are configured as time servers and use symmetric active mode to send synchronization requests. Some NTP servers that do not run Windows respond only to requests that use client mode

Solution:
o resolve this problem, configure Windows Time to use client mode when it synchronizes with the time server. To do this, follow these steps:

  1. Click Start, click Run, type cmd, and then press ENTER.
  2. At the command prompt, type the following commands in the order that they are given. After you type each command, press ENTER.
    • w32tm /config /manualpeerlist:NTP_server_IP_Address,0x8 /syncfromflags:MANUAL
    • net stop w32time
    • net start w32time
    • w32tm /resync

 

Source: http://support.microsoft.com/kb/875424/en-us

Useful Links: http://www.a-m-i.de/tips/w32time/w32time.php

 

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Abgelegt unter Server 2003, Troubleshooting | Kommentare deaktiviert für Time synchronization may not succeed when you try to synchronize with a non-Windows NTP server in Windows Server 2003

Mailbox import / export function under Exchange 2010

Erstellt von Administrator am Dienstag 9. August 2011

Mailbox import / export function under Exchange 2010

Prerequisits:
The export / import can be started remotely on the Powershell, but will be finally executed directly on the exchange server.
=> Hint: Remote Powershell:

Now if you’re on Exchange 2010 RTM and still using import-mailbox, look in the migration logs folder on the Mailbox Server that you connected to when you opened your shell session, not on the local machine (if it’s not the mailbox server).

Because of the new remoting nature of the import process if you’re running the shell on a separate management box, the import doesn’t actually live on the management machine – but on the mailbox server itself

Exchange Server 2010 comes with Roll-based Administration; you will need to run the following command first though:

  •  New-ManagementRoleAssignment –Role “Mailbox Import Export” –User “<username>”
    This command gives the user permission to import and export mailboxes.Another way of doing this is creating an Active Directory group and adding permissions to this group using the following command:
  • New-ManagementRoleAssignment –Role “Mailbox Import Export” –Group “<usergroup>”
    When you are done, you will only have to add users to this group to allow them to export and import mailboxes.
  • You have to restart the Powershell after the Role Assiggnment

– – – – – –

Watchout for the new cmd-lets @ Exchange 2010 – ServicePack 1 :

  1. Szenario: Install „Exchange SP1“ @ 2010 Exchange Server, to import/export the .PST File without an Outlook Client, directly on the remote Powershell with the cmd-let „New-MailboxImportRequest“ / „New-MailboxExportRequest“.
  2. Szenario: Install Outlook 2010 64Bit @ 2010 Exchange Server WITHOUT SP1 to perform this action with the „import-mailbox“ cmd-letClient Preparation with the following requirements:
    • Installation of 64 Bit Windows Operating System
    • Installation of Powershell 2.0
    • Installation of .NET Framework 3.51
    • Installation of Outlook Office 2010 64 Bit (which is currently in CTP release available)
    • Installation of Exchange Server 2010 management tools
    • Create domain membership for this client
    • Logon with an administrative account with Exchange’s full administrative permissions

– – – – – –

Examples:
If we take a look at how to import a mailbox, you will see that the powershell command for this task is actually quite simple:

############################################################################
#  PST Import cmdlet for PS with-TargetRootFolder und -BadItemLimit Option #
############################################################################

New-MailboxImportRequest -Mailbox frank -Filepath \\servername\UNC_Share\Outlook.pst -TargetRootFolder „Mailarchiv“ -BadItemLimit 50

FYI – if you get „MapiExceptionShutoffQuotaExceeded“ in your log file, check the mailbox limits and
verify that you haven’t disabled the mailbox by filling it up during the import…

############################################################################
#  Mailbox-import Progress-Status (OVERVIEW)      #
############################################################################

Get-MailboxImportRequest | Get-MailboxImportRequestStatistics

you can pipe the „get-mailboximportrequest“ to „get-mailboximportrequeststatistics -includereport“ and you’ll a full report of your import details

############################################################################
#  Mailbox-Import Progress-Status (DETAILED)      #
############################################################################

get-mailboximportrequest -mailbox frank | get-mailboximportrequeststatistics -includereport | fl | more

############################################################################
#  Delete completed Requests from the Overview #
############################################################################

Additionally – to remove „Completed“ requests en masse, you can do:

get-mailboximportrequest -status Completed | remove-mailboximportrequest

############################################################################
#  Default und Personal Mailbox-Contingents                         #
############################################################################
default: 10MB send/receive
1945 MB warning / 2048 MB deny send / 2355 MB deny send & receive

############################################################################
#  Display Mailboxes with exeeded Mailbox Quotas                 #
############################################################################

Get-MailboxStatistics -Database „Mailbox Database 2011060122“ | where {$_.StoragelimitStatus -ne “BelowLimit”} | ft display*,*limit*

############################################################################
#  Mailbox Statistics from all Mailboxes, sorted                      #
############################################################################

Get-MailboxStatistics -Database „Mailbox Database 2011060122“ | Sort-Object -Property TotalItemSize | ft DisplayName, TotalItemSize

############################################################################
#  Mailbox Statistic from a singl Mailbox                        #
############################################################################

Get-MailboxStatistics -identity „frank“ | Sort-Object -Property TotalItemSize | ft DisplayName, TotalItemSize

############################################################################
#  Mailbox Quotas from a single Mailbox                       #
############################################################################

get-Mailbox frank | ft name,IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota -AutoSize

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Abgelegt unter Exchange, Microsoft Exchange | Kommentare deaktiviert für Mailbox import / export function under Exchange 2010

How To: Simulate WAN Connections in Your Own Test Lab, For Free!

Erstellt von Administrator am Samstag 25. Juni 2011

How To: Simulate WAN Connections in Your Own Test Lab, For Free!

knowledge base article from virtualizationadmin.com to simulate WAN Connections in Your Own Test Lab:

 

source: http://www.virtualizationadmin.com/articles-tutorials/terminal-services/general/how-to-simulate-wan-area-connection-test-lab-free.html

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Abgelegt unter Citrix, TerminalServer, Troubleshooting | Kommentare deaktiviert für How To: Simulate WAN Connections in Your Own Test Lab, For Free!

Dealing with Poor Bandwidth and Latency

Erstellt von Administrator am Samstag 25. Juni 2011

user’s session needs roughly 20kbit for a Citrix session, and 30kbit for a Terminal Server session. Latency should be under 150 to operate smoothly.

 

knowledge base article from virtualizationadmin.com to fight against poor bandwidth and latency issues:

– Changing the packet acknowledgements timer
– Keepalive settings
– The use of QoS
– MTU
– Cisco (PDLM ICA Modul)
– Citrix SLR (Speedscreen Latency Reduction)

source: http://www.virtualizationadmin.com/articles-tutorials/terminal-services/performance/poor-bandwidth-latency.html

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Abgelegt unter Citrix, TerminalServer, Troubleshooting | Kommentare deaktiviert für Dealing with Poor Bandwidth and Latency