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Raid 1 is mirrored, which means data is written to both disk simultaneously. If you lose one then simply replace with a disk of similar size or larger (Windows will format to the same size as the other disk)
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Raid 1 is mirrored, which means data is written to both disk simultaneously. If you lose one then simply replace with a disk of similar size or larger (Windows will format to the same size as the other disk)

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Insert new hard disk and initialise it from the raid controller management before OS boot.
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Insert new hard disk and initialise it from the raid controller management before OS boot.

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I'm using windows. I dont have RAID adapter.
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I'm using windows. I dont have RAID adapter.

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I have also tried it by shutting down OS, replacing drive, rebooting computer and then going to disk management and initializing the disk and it worked.
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I have also tried it by shutting down OS, replacing drive, rebooting computer and then going to disk management and initializing the disk and it worked.

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I have windows 2012 server with raid 1 (two disks 1Tb each). One disk stops. What I have to do to replace the disk without loosing data ?
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I have windows 2012 server with raid 1 (two disks 1Tb each). One disk stops. What I have to do to replace the disk without loosing data ?

windows 2012 server raid 1

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

RAID stands for Redundant Array of Independent Disks.

RAID is data storage technology that allows multiple drives to be used together as a single virtual drive for reasons such as fault tolerance, reliability and performance. 

There are several different levels of RAID that determine how the data is stored and the level of redundancy achieved across the drives.