Data Storage in Microsoft Windows 2000 Presented by Steve Mathias Windows 2000 Professional MPS Prem

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Data Storage in Microsoft Windows
2000Presented by Steve MathiasWindows 2000
ProfessionalMPS Premier Support Microsoft
Corporation
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Data Storage in Windows 2000Topics Covered

• Discuss the differences between Basic and dynamic
  disks
• Go over the new features of dynamic disks
• Discuss the types of RAID technologies that are
  incorporated into Microsoft Windows 2000
• Understand how to create fault-tolerant sets
  (RAID Technologies)

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Data Storage in Windows 2000Differences between
dynamic and basic disks

• To understand dynamic disk, you must first
  understand basic disk
• Must comprehend the new terminology
• Basic Partitions
• Dynamic Volumes

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Data Storage in Windows 2000Basic disks

• Basic disks create partitions
• Basic disks have been around for a long time
• The below operating systems use basic disk
• MS-DOS version x.xx
• Windows 95 and Windows 98
• Windows NT version 3.51 and 4.0

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Data Storage in Windows 2000Basic disks
(continued)

• Basic disks are composed of
• Primary partitions
• Extended partitions
• Extended partitions with logical drives

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Data Storage in Windows 2000Limitations of basic
disks

• MS-DOS, Windows 95, and Windows 98 allow two
  partitions
• One primary and one extended partition with
  multiple logical drives in the extended partition
• Windows NT 4.0 allows for four partitions
• One extended partition and up to three primary
  partitions

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Data Storage in Windows 2000Limitations of basic
disks (continued)

• Basic disks rely on the partition tables
• The partition table shares the first physical
  sector of the hard drive with the master boot
  record (MBR)
• If the partition tables are destroyed, all data
  is effectively gone a single point of failure

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Data Storage in Windows 2000Dynamic disks

• Dynamic disks are new to Windows 2000
• Only Windows 2000 can access dynamic disks
• Dynamic disks are independent of how the hard
  drive is formatted
• You can have a dynamic disk format FAT and
  previous operating systems will not be able to
  read it

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Data Storage in Windows 2000Dynamic disks
(continued)

• Dynamic disks do not rely on a partition table
• Dynamic disks have a one megabyte database at the
  end of the drive
• The database at the end of the drive contains
  specifications about all volumes stored on all
  dynamic disks in the system

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Data Storage in Windows 2000Dynamic disks
(continued)

• The specifications in the database are much like
  the partition tables of a basic disk
• It contains the specifications of all volumes
  including
• Starting Sector, Ending Sector, Number of Sectors
• Which volumes belong to what different RAID
  technologies

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Data Storage in Windows 2000Dynamic disks
(continued)

• Dynamic disks on a local computer replicate the
  information stored in the database to each other
• Completely automatic nothing to configure
• Independent of any type of software RAID
• Database is automatically recovered from another
  member if corruption occurs

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Data Storage in Windows 2000Dynamic disks
(continued)

• Does not contain the actual file allocation table
  (FAT) or master file table (MFT)
• Known issues
• Cannot create dynamic disk on portable computers
• Cannot create dynamic disk on removable media
  such as Zip, ORB, or Jaz drives
• No real advantage if system contains only one
  dynamic disk

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Data Storage in Windows 2000RAID Technologies

• Windows 2000, like Windows NT 4.0, can link
  several volumes into fault-tolerant sets called
  redundant arrays of inexpensive disks (RAID)
• Windows 2000 also supports linking volumes
  together called spanned volumes

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Data Storage in Windows 2000RAID Technologies
(continued)

• Comparison of Windows 2000 and Windows NT

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Data Storage in Windows 2000RAID Technologies
(continued)

• Windows 2000 Server supports RAID 0, 1, 5 and
  spanned volumes
• Windows 2000 Professional supports RAID 0 and
  spanned volumes
• Note When we discuss how to set up RAID, we will
  include information about spanned volumes

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Data Storage in Windows 2000RAID Technologies
(continued)

• The drives must be dynamic disk to create any new
  RAID technologies
• Issues with upgrading from Windows NT 4.0
• Current RAID technologies will continue to work
• Drives will still be basic disk
• Can repair RAID 5 volumes while they are still
  basic
• Cannot create any new RAID technologies until the
  disks are dynamic

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Data Storage in Windows 2000RAID walk-through
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Data Storage in Windows 2000RAID walk-through
(continued)

• Upgrade to dynamic disk

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Data Storage in Windows 2000RAID walk-through
(continued)

• Create a volume or partition depending on what
  type of disk we are using

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Data Storage in Windows 2000RAID walk-through
(continued)

• Type of volume we can create depends on how many
  dynamic disks we have available

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Data Storage in Windows 2000RAID walk-through
(continued)

• Select the drives to be included in this spanned
  volume

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Data Storage in Windows 2000RAID walk-through
(continued)

• Spanned volume creation is complete

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Data Storage in Windows 2000RAID Technologies

• Fault-tolerant sets can be moved from one
  computer to another due to dynamic disks
• Note This can also be the case for existing FT
  sets when the system is upgraded to Windows 2000
• Information about RAID Volumes has been moved
  from the registry into the database at the end of
  the drive
• When a RAID volume is placed into a new computer,
  you simply have to import it
• No longer need a tool such as the FTEDIT utility
  from the resource kit

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Data Storage in Windows 2000More Information and
links

• Articles are available on the Microsoft Web site
  at http//www.microsoft.com/support/
• Q175761 Dynamic vs. Basic Storage in Windows 2000
• Q225551 Extending or Spanning Simple Volumes on
  Dynamic Disks
• Q224199 Stop 0x58 Error Message Booting to a
  Shadow Drive
• Q237853 Dynamic Disk Configuration Unavailable
  for Server Cluster Disks
• Q244919 IEEE 1394 Hard Disk Support in Windows
  2000
• Q234048 How Windows 2000 Assigns, Reserves, and
  Stores Drive Letters
• Q222189 Description of Disk Groups in Windows
  2000 Disk Management
• Starting point for Windows 2000 information
• http//www.Microsoft.com/windows2000/

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