Windows Server: Logical Disks May Show Offline Status in Disk Management After Installation of Windows Server 2008 or 2008 R2
This article provides information about the logical disks appearing offline in Disk Management after installing Windows 2008 or 2008 R2.
Problem: The logical disks may show "Offline" status in Disk Management after installing Windows Server 2008 or Windows Server 2008 R2.
Discussion: Microsoft introduced a new policy in the Enterprise and Datacenter editions of Windows Server 2008 and Windows Server 2008 R2. The hard disks on the same bus as the disk on which Windows is installed will use Offline Shared as their default policy to reduce the boot time.
Resolution: This behavior is normal for the Windows Server 2008 and Windows Server 2008 R2 installation process. Manually set the logical disks in Disk Manager to Online as shown in Figure 1 (English only).
Figure 1: Disk Manager
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