Nov 14 2014

How to Change Disk Status From Reserved to Online on Windows

Category: VMware,WindowsFatih Acar @ 18:02

I took a clone backup for windows failover cluster system from vmware system which used raw disks. Raw disks automatically converted to vmdk disk via vmware. I restored this clone backup as new standalone server. I started system but my disks were reserved status and I could not use these. I implemented below steps to convert disk status from reserved to online.

Error

diskpart_0

Solution

Delete Reserved Disks Information From Regedit

You have to delete content from AttachedDisks parameter. You have to restart server after delete operation.

diskpart_1

Set SAN Policy to Online

If SAN Policy is OfflineAll, you have to set this parameter to OnlineAll

diskpart_2

Disks Make Online

diskpart_3

Change Read Only Status to Read Write

diskpart_4

Finally, you can use disks.

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Tags: Cluster Systems, Disk Status Convert, Reserved Disk to Online Disk, System Administration, Windows Cluster Disks

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2 Responses to “How to Change Disk Status From Reserved to Online on Windows”

  1. Sam says:

    My disks are online, but my cluster management console doesn’t recognize them.

  2. Martin says:

    Delete Reserved Disks Information From Regedit
    you forgot wrote where is path :)
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ClusDisk\Parameters

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