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thanks for this, the customer wants the primary to be hardware, so on that basis how is it best to setup<br />
&nbsp;create a virtual backup domain controller alongside the physical dc please?
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thanks for this, the customer wants the primary to be hardware, so on that basis how is it best to setup
 create a virtual backup domain controller alongside the physical dc please?

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Great advise from the experts, thankyou
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Hello Experts, <br />
we have a client network and are about to install a new physical domain controller server 2012. We would like to create a backup domain controller as well , perhaps using one of there older decommissioned servers. Will having a physical primary DC work alongside &nbsp;a virtual backup DC. What softawre should we be considering pleasE?<br />
also general question, client has office 365 but the 50 odd users access the fileserver onsite (which is part of the DC). Do we need users CALs for filesharing?
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Hello Experts, 
we have a client network and are about to install a new physical domain controller server 2012. We would like to create a backup domain controller as well , perhaps using one of there older decommissioned servers. Will having a physical primary DC work alongside  a virtual backup DC. What softawre should we be considering pleasE?
also general question, client has office 365 but the 50 odd users access the fileserver onsite (which is part of the DC). Do we need users CALs for filesharing?

Best way to deploy Backup domain controller?

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

Operating Systems

The term "Backup" means the methods and processes involved to copy computer data (system data as well as application data) to media other than the ones where the data originally live (disk, tape, optical, cloud). "Restore" in turn means the methods and processes involved in data recovery, i. e., bringing back copied computer data to their original location. Backup/Restore primarily serves as a means of protection against data loss, be it due to disaster, corruption or sabotage. It can also be used for recovering data from an earlier point in time and even for cloning machines or applications. There is a wide variety of backup/restore software available, from expensive commercial products to free or open source tools.