You receive a "lsass.exe-system error: Security Accounts Manager initialization failed" error message and event ID 1168 is logged when you restart a Windows Server 2003 domain controller

http://support.microsoft.com/kb/830574

"Directory Services cannot start" error message when you start your Windows-based or SBS-based domain controller View products that this article applies to.

http://support.microsoft.com/kb/258062

KB955020 Update for Windows Vista and Server 2008 May Occupy 1GB Disk Space – Remove to Recover

http://www.mydigitallife.info/2008/07/11/kb955020-update-for-windows-vista-and-server-2008-may-occupy-1gb-disk-space-remove-to-recover/

Logons Hang at "Applying Internet Explorer Branding Policy" When Connecting to XenApp Servers with Internet Explorer 7

http://support.citrix.com/article/CTX120579

 

Symptoms

When you log on to a Citrix XenApp server, running Windows 2003 with Internet Explorer 7, and there are Active Directory Internet Explorer Maintenance Group Policy settings configured, you experience a 20 second delay at logon.

You experience the delay when the stuisrv.exe gui is displaying "Applying Internet Explorer Branding policy…"

Cause

Internet Explorer 7 introduced an error that causes this problem to occur; the error occurs as a result of command line parameters that are parsed by Internet Explorer 7.

Solution:

Enter the following in the open field: rundll32 iedkcs32.dll;Clear.

Smart auditor agent error: Exception caught while sending message queue message.

Try restart the Citrix SmartAuditor Agent service.

XenServer loses its all NIC and settings.

http://support.citrix.com/article/CTX119240

The following are the commands you can try.

host-is-in-emergency-mode

host-is-in-emergency-mode

Returns true if the host the CLI is talking to is currently in emergency mode, false otherwise. This CLI command works directly on slave hosts even with no master host present.

pool-emergency-transition-to-master

pool-emergency-transition-to-master

Instruct a member XenServer host to become the pool master. This command is only accepted by the XenServer host if it has transitioned to emergency mode, meaning it is a member of a pool whose master has disappeared from the network and could not be contacted for some number of retries.XenServer Administrator’s Guide Command line interface 162

Note that this command may cause the password of the host to reset if it has been modified since joining the pool (see the section called “User commands”).

pool-recover-slaves

pool-recover-slaves

Instruct the pool master to try and reset the master address of all members currently running in emergency mode. This is typically used after pool-emergency-transition-to-master has been used to set one of the members as the new master.

Xendesktop 4 is out today!

User Profile Manager Deployment Best Practices &

http://support.citrix.com/article/ctx119036

XenServer Pool, Master host failures

Master failures Every member of a resource pool contains all the information necessary to take over the role of master if required. When a master node fails, the following sequence of events occurs:

1. The members realize that communication has been lost and each tries to reconnect for sixty seconds.

2. Each member then puts itself into emergency mode, whereby the member XenServer hosts will now accept only the pool-emergency commands (xe pool-emergency-reset-master and xe pool-emergen- cy-transition-to-master). If the master comes back up at this point, it re-establishes communication with its members, the members leave emergency mode, and operation returns to normal.  If the master is really dead, choose one of the members and run the command xe pool-emergency-tran- sition-to-master on it. Once it has become the master, run the command xe pool-recover-slaves and the members will now point to the new master. If you repair or replace the server that was the original master, you can simply bring it up, install the XenServ- er host software, and add it to the pool. Since the XenServer hosts in the pool are enforced to be homoge- neous, there is no real need to make the replaced server the master.

IBM System X3550

http://www.pcauthority.com.au/Review/77028,ibm-system-x3550.aspx