Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. This step-by-step article describes how to mirror the system and boot partition in Windows Server This scenario is based on the assumption that the system and boot files are located on disk 0 and that disk 1 is unallocated space.
The memory dump file is written only to the boot hard disk. Windows Server can continue to work with a mirrored system disk configuration even if one of the disks in the mirror is removed.
However, the memory dump file cannot be written to the remaining system disk in the mirror. You must schedule a system restart for the memory dump file to be written to the remaining hard disk. On the View menu, point to Top, and then click Disk List. In the right pane, the attributes of each disk in the system are displayed.
At the bottom of the right pane, a color-coded graphical view of the disks on the system is displayed:. To mirror to an existing volume using Disk management, right click on the existing volume in the graphical view and select Add Mirror to invoke the Add Mirror dialog shown below:.
The above dialog will list disks eligible to act as a mirror for the existing volume. Select the desired disk and click on Next.
A warning dialog may appear notifying you of any additional changes that may be made as a result of the addition such as converting basic disks to dynamic disks. Click Yes to proceed. The resynching process will now begin, the progress of which will be displayed in the graphical view.
To add a mirror to an existing volume from the command prompt, start diskpart and identify the existing volume using the list volume command:. The volume to be mirrored in this example is Volume 2. Having identified the volume, a disk to contain the mirror needs to be found using the list disk command:.
From the above information it is clear that Volume 2 is MB in size. In order to be able to mirror this volume, a disk with at least MB is required. Clearly, disk 2 meets this requirement. Therefore, all that needs to be done is to add disk 2 as the mirror disk for our volume using the add disk command. Note that if the disks are not dynamic disks they will need to be converted with the convert dynamic command:.
At this point Windows Server will begin the resynching process which, depending on the size of the volume being mirrored may take some time. This fact is reported by the show volume command which lists the volume as being of type Mirror with a status of Rebuild. Once the resynching process is complete the status will be displayed as Healthy. A Windows Server mirror may be broken which creates two separate and independent volumes containing identical data or removed which removes the data on the mirror leaving free space on the designated mirror disk.
To break a mirror from the Disk Management snap-in right click on one of the volumes in the set in graphical view and select Break Mirrored Volume from the pop-up menu. To break a mirror set from the command line use the break command, specifying one of the two disks in the mirrored set:.
To remove a mirror from a mirrored set, removing all mirrored data and leaving free space on the disk right click on the mirror volume to be removed in the Disk Management graphical view and select Remove Mirror. If one of the disks in a mirrored set fails the good news is that, unlike striped volumes, all the data is still present on the remaining healthy disk this, after all is the whole point of disk mirroring.
In this situation, however, it is important to replace the faulty disk and rebuild the mirror before the healthy drive also fails. This posting is provided "AS IS" with no warranties, and confers no rights. Thursday, August 27, AM. That's kind of what I was figuring. It's probably something in the ESX storage drivers.
Since this is my lab environment, and we're done with linux, I'm probably going to be switching to Hyper-V. It'll let me use a much greater array of hardware. Thursday, August 27, PM. Friday, August 28, AM. Hi Sienar, it is indeed a know issue and will be fixed in an upcoming release. Cheers Valentin P. VMware employee here. Wednesday, April 21, PM. Is it a R2 issue, or VMware issue? Wednesday, April 28, AM. Hi vbondzio, you say this is a known issue, could you please post a link to the issue?
Cheers Chris. Tuesday, May 4, PM.
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