Member of Dynamic Volume Split into 2 or More Regions on a Disk

ID: Q235561


The information in this article applies to:
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Server


SYMPTOMS

When you create or view the layout of any of the following volume types, one of the members may be split into 2 separate regions of a disk:

  1. RAID-5


  2. Striped


  3. Spanned


  4. Mirrored volume



CAUSE

This problem can occur when you create one member of a volume and there is extra space between two other volumes on a disk. When this occurs, Logical Disk Manager (LDM) may combine that space with the rest of the unallocated space on a disk.


RESOLUTION

To resolve this problem:

  1. Fully back up the volume, and then remove it.


  2. Re-create the volume on disks that only have contiguous regions of unallocated space.


  3. Restore the data to the new volume.



STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.


MORE INFORMATION

For example, this problem can occur when you want to create a RAID-5 volume on disks 0, 1 and 2. Disks 0 and 1 have 2GB of contiguous unallocated space, but disk 2 has 2GB of non-contiguous unallocated space available. Disk 2 has 1GB between two simple volumes, left over from a volume that was previously removed and 1GB at the end of the disk. After you create the RAID-5 volume on disks 0, 1 and 2, the member of the volume on disk 2 is split between the middle and the end of the disk.

Additional query words: ldm veritas

Keywords : kbtool kbui
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbprb


Last Reviewed: December 30, 1999
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