Azaer,  I will try to answer your questions as best I can. 1. The 2 disk Raid 1 that is created is the Virtual DIsk you were asking about. It more than likely is where the OS is installed, so when removed there is no boot device available. 2. When you have a failed drive in the server you have a couple different ways you can start a rebuild. You can simply reseat the drive in the blade, you can also start it with Open Manage, as well as the Raid controller. 3. That is to tell the server if it needs the embedded Sata Controller or an installed Raid Controller, as you are using Raid you have that correct. 4. A "Hot Spare" is an extra hard drive that is installed that is assigned in the RAID Controller to automatically rebuild itself into the  virtual disk at the time of another drive failing.  Let me know if this helps.
Hi all .. I'm anew user on Dell Poweredge M1000e . I'm confused about these case : I have to hard disk on blade and set them to RAID 1 so : 1- what is virtual disk that he create and why the server doesn't boot without it ? 2- how to replace failed disk and rebuild it (make it the same that failure disk was) using patrol read (if that is possible on RAID 1)? 3- on BIOS does SATA setting must be on RAID mode? 4- what is "Hot Spare" and how to use it? can any one help me please?? and sorry for not good English thanks
RAID issues