Local cache cannot be seen on local disk after reboot.Local cache cannot be seen on local disk after reboot. Local cache cannot be seen on local disk after reboot.
In general the important thing to check in local cache problems is the ability to see the local disk. Make sure that the local disk is formatted and has a drive letter assigned. You can do this either from a local OS or you can boot to a vDisk in standard image mode. Once the drive is formatted and has a drive letter you should be all set.
Disk can be moved from system to system as long as the local OS can see the file system. The one problem that you may encounter is that in 2003 server Enterprise edition, auto-mounting of volumes is disabled by default. (http://support.microsoft.com/kb/834911/en-us )
Assigning a drive letter is done by the auto-mounting process. This is controlled by the registry. On dynamic disks, behavor changed from Windows 2000 to Server 2003. The NoAutoMount key can be controlled by GPO as well. Auto-mounting can be re-enabled using the command "mountvol /E"
Microsoft reference:
Drive letters are not automatically assigned to dynamic volumes in Windows Server 2003
function loadTOCNode(){}
| Article ID | : | 867819 |
| Last Review | : | February 6, 2007 |
| Revision | : | 2.4 |
INTRODUCTION
loadTOCNode(1, 'summary');
Back to the topMORE INFORMATION
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This behavior occurs because in Windows Server 2003, the NO_DRIVELETTER volume attribute is set to Yes on all dynamic volumes. You cannot clear or set this attribute in Windows Server 2003.
The NO_DRIVELETTER attribute is set on dynamic volumes because the NoAutoMount registry value does not affect dynamic volumes. Therefore, if the NO_DRIVELETTER attribute was not set for dynamic volumes, a dynamic volume would have a drive letter assigned when that volume was auto-mounted. This behavior would affect technologies such as storage area networks (SANs). The NoAutoMount registry value does work for basic disks.
| • | On a dynamic volume, the NO_DRIVELETTER attribute is always set. |
| • | For a GUID partition table (GPT) basic disk, the NO_DRIVELETTER attribute is set at the time of volume creation. This attribute is then turned on or off when drive letters are assigned to the volume or removed from the volume. |
| • | For a master boot record (MBR) partition table basic disk, the NO_DRIVELETTER attribute is not set when the volume is created. However, in this scenario, a drive letter is not assigned to the volume because the Virtual Disk Service (VDS) removes the automatically-assigned drive letter when the VDS receives the volume device arrival notification from the Windows Plug and Play component. |
The NO_DRIVELETTER attribute is not turned on or off on a MBR basic disk when drive letters are assigned to the volume or removed from the volume. In this scenario, the NO_DRIVELETTER attribute is only changed when the SetFlags function or the ClearFlags function is called. The NO_DRIVELETTER attribute is applied to all the volumes on the hard disk at the next volume restart.
Microsoft Windows 2000 automatically assigns drive letters to dynamic volumes. However, the Windows code was changed in Windows Server 2003 and in Microsoft Windows XP so that Windows does not automatically assign drive letters to dynamic volumes. This code change is intended to improve support for storage area networks (SANs).
You can assign a drive letter to a volume by using the Disk Management snap-in in Windows Server 2003 or by using the diskpart command. For additional information about how to assign a drive letter in Windows Server 2003, visit the following Microsoft Web site:
For additional information, visit the following Microsoft Web site:
APPLIES TO
| • | Microsoft Windows Server 2003, Enterprise Edition (32-bit x86) |
| • | Microsoft Windows Server 2003, Standard Edition (32-bit x86) |
| • | Microsoft Windows Server 2003, Web Edition |
| • | Windows Server 2008 Datacenter without Hyper-V |
| • | Windows Server 2008 Enterprise without Hyper-V |
| • | Windows Server 2008 for Itanium-Based Systems |
| • | Windows Server 2008 Standard without Hyper-V |
| • | Windows Server 2008 Datacenter |
| • | Windows Server 2008 Enterprise |
| • | Windows Server 2008 Standard |
| • | Windows Web Server 2008 |
Keywords: |
kbhowto kbinfo kbfilesystems kbdiskmemory KB867819 |
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