Editing Windows 2000 (section)

=== Basic and dynamic disk storage ===
{{main|Logical Disk Manager}}

Windows 2000 introduced the [[Logical Disk Manager]] and the [[diskpart]] command line tool for [[Logical Disk Manager|dynamic storage]].<ref name="DiskManagement" /> All versions of Windows 2000 support three types of [[Logical Disk Manager|dynamic]] disk volumes (along with basic disks): ''simple volumes'', ''spanned volumes'' and ''striped volumes'':
* Simple volume, a volume with disk space from one disk.
* Spanned volumes, where up to 32 disks show up as one, increasing it in size but not enhancing performance. When one disk fails, the array is destroyed. Some data may be recoverable. This corresponds to [[JBOD#Concatenation (SPAN, BIG)|SPAN]] and not to [[Standard RAID levels#RAID 1|RAID-1]].
* Striped volumes, also known as [[Redundant array of independent disks#RAID 0|RAID-0]], store all their data across several disks in ''stripes''. This allows better performance because disk reads and writes are balanced across multiple disks. Like spanned volumes, when one disk in the array fails, the entire array is destroyed (some data may be recoverable).

In addition to these disk volumes, Windows 2000 Server, Windows 2000 Advanced Server, and Windows 2000 Datacenter Server support ''mirrored volumes'' and ''striped volumes with parity'':
* Mirrored volumes, also known as [[Redundant array of independent disks#RAID 1|RAID-1]], store identical copies of their data on 2 or more identical disks (''mirrored''). This allows for fault tolerance; in the event one disk fails, the other disk(s) can keep the server operational until the server can be shut down for replacement of the failed disk.
* Striped volumes with parity, also known as [[Redundant array of independent disks#RAID 5|RAID-5]], functions similar to striped volumes/RAID-0, except "parity data" is written out across each of the disks in addition to the data. This allows the data to be "rebuilt" in the event a disk in the array needs replacement.