Compaq N2400 - TaskSmart - 1 GB RAM Administration Manual page 55

2-26 Compaq TaskSmart N2400 Administration Guide
Snapshots and Drive Defragmentation
CAUTION: Defragmentation must not be performed when snapshots exist,
because defragmenting a virtual disk rewrites its files on the virtual disk. If you
must defragment, first delete the snapshots.
A drive defragmenter attempts to consolidate files on a drive by reading
various parts of the files and rewriting them to become contiguous on the
drive. Contiguous files increase drive performance. When virtual disks are
created from the drive space pool, the software attempts to make them as
contiguous as possible on the underlying storage units (logical drives and
arrays).
IMPORTANT: Defragmenting a virtual disk is appropriate when snapshots are not
present. However, the Windows 2000 operating system native defragmenter does not
work on SWVR virtual disks and must be avoided.
IMPORTANT: Drive defragmentation only operates on virtual disks formatted with a 4-KB
or smaller cluster size.