Here’s the brief description of Windows Server 2008 Boot process.

1. System is powered on
2. The CMOS loads the BIOS and then runs POST
3. Looks for the MBR on the bootable device
4. Through the MBR the boot sector is located and the BOOTMGR is loaded
5. BOOTMGR looks for active partition
6. BOOTMGR reads the BCD file from the \boot directory on the active partition
7. The BCD (boot configuration database) contains various configuration parameters( this information was previously stored in the boot.ini)
8. BOOTMGR transfer control to the Windows Loader (winload.exe) or winresume.exe in case the system was hibernated.
9. Winloader loads drivers that are set to start at boot and then transfers the control to the windows kernel.

Here’re some articles for your reference. Boot Process and BCDEdit http://technet.microsoft.com/en-us/library/ee221031(WS.10).aspx Server 2008 Boot Process – Making a boot disk http://www.slickit.ca/2009/03/server-2008-boot-process-making-boot.html Windows Server 2008: Startup Processes and Delayed Automatic Start http://www.ditii.com/2008/02/02/windows-server-2008-startup-processes-and-delayed-automatic-start/

Well – I have been asked asked a question about the Backup failure of Quorum disk

if we have failure and if we are using the Quorum disk as only and only Quorum disk then you can exclude the disk from the backups
Reason : the backup generally fails in the Log* files due the open and write operations of logs by the cluster service  and hence server can alert the backup failure & as we all aware we have open file backup as well but I suggest not to go for backup only for Quorom DIsk

thanks
Aslam