Windows 2000 introduces a new type of disk partitioning scheme that is managed by a component called the Logical Disk Manager (LDM). Basic disks implement standard DOS-style partition tables, whereas Dynamic disks use LDM partitioning. LDM partitioning offers several advantages over DOS partitioing including replication across disks, on-disk storage of advanced volume configuration (spanned volume, mirrored volumes, striped volumes and RAID-5 volumes).
Other than the Disk Management MMC-snapin and a tool called dmdiag in the Windows 2000 Resource Kit, there are no tools for investigating the internals of the LDM on-disk database that describes a system's partitioning layout. LDMDump