Windows Server 2003

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Windows Server 2003??????????

• ???
• jeffl_at_ms11.hinet.net

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What Is Disk Management?

• A snap-in located in Computer Management
• Use to view disk information and perform disk
  management tasks on local and remote computers
• Enables you to perform most disk-related tasks
  without shutting down the system or interrupting
  users

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Using Disk Management
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Organizing a Basic Disk
Primary partitions
Extended partition with logical drives
Up to three primary partitions and one extended
partition with logical drives
Up to four primary partitions
-OR-
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Creating Partitions and Drives
Creating a partition
Creating a logical drive
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Assigning Drive Letters
Assigned
CI
Primary
Disk 0
F
G
Disk 1
Logical
H
D
Disk 2
Primary
Disk 3
Primary
E
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Changing a Drive Letter
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What Is a Mounted Drive?

• Is assigned a path rather than a drive letter
• Can unify different file systems on a logical
  drive
• Allows you to add more drives without using up
  drive letters

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Creating a Mount Point
Before adding a mount point
After adding a mount point
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Purpose of a Mounted Drive

• Adds volumes to systems without adding separate
  drive letters for each new volume
• Disk Management assigns a drive path to the drive
  rather than a drive letter
• Drive paths retain their association to the drive
  
• Add or rearrange storage devices without the
  drive path failing
• Increases number of drives, not storage space
• Manages data storage based on working environment
  and system usage

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Deleting a Partition
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Disk Storage Types
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Basic Disks vs. Dynamic Disks
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Converting a Basic Disk to a Dynamic Disk
Disk Management
DiskPart
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Results of Dynamic Disk Conversion

• Can convert a disk from basic to dynamic storage
  at any time without losing data
• Dynamic disks are associated with Disk Groups
• Disk Groups help you organize dynamic disks
• Each disk in a Disk Group stores replicas of the
  same configuration data
• Windows initializes the disk with a Disk Group
  identity and a copy of the current Disk Group
  configuration
• Existing partitions on the basic disk become
  volumes
• Dynamic disks can be reverted back to basic disks
  
• Disk structure and data is not maintained
• Back up data before reverting

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Creating a Volume

• A simple volume resides on a single dynamic disk
• To create a spanned or striped volume, you must
  have two or more dynamic disks

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Creating Simple Volumes

• Simple Volumes
• Contain Space on a Single Disk
• Can Use NTFS, FAT, or FAT32
• Can be created only on dynamic disks
• Are Created with the Create Volume Wizard
• Can Be Extended if Formatted as NTFS
• Can Be Mirrored

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Extending a Volume

• Created by extending onto unallocated space on
  the same disk or a different disk
• You cannot extend a volume that contains a system
  or boot volume

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Creating Spanned Volumes
Free space combined into one logical volume
Data written to first disk until full, then to
next disk in volume
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RAID Systems

• Hardware Disk Array Supports
• RAID 0 1
• RAID 1 5

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Creating Striped Volumes
Free space combined into one logical volume
Data written across all disks in 64-KB units
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How Striped Volume Works
Disk 3
Disk 1
Disk 2
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RAID 1 Mirrored Volume
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Raid 5 Stripe Sets with Parity
Disk 3
Disk 4
Disk 5
Disk 1
Disk 2
Parity
Parity
Parity
Parity
Parity
Parity
Parity Information
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Raid 1 vs. Raid 5
Mirrored Volume
RAID-5 Volume

• Supports FAT and NTFS

• Supports FAT and NTFS

• Can mirror system or boot partition

• Cannot stripe system or boot partition

• Requires two hard disks

• Requires minimum of three hard disks

• Has higher cost per megabyte(50 percent
  utilization)

• Has lower cost per megabyte

• Has good read and write performance

• Has moderate write performance
• Has excellent read performance

• Uses less system memory

• Requires more system memory

• Supports up to 32 hard disks

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Recovering a Failed Mirrored Volume

• Recover a disk identified as Offline, Missing,
  or
• Online (Errors)

Disk 1
Disk 2
D
D'

• When Reactivate Disk fails
• to recover the mirrored volume,
• replace the failed diskand reestablish
  themirrored volume

Reactivate Disk
Disk 1
Disk 2
Disk 2
D
D'
Add Mirror
Remove Mirror
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Creating a Fault Tolerance Boot Disk
Format a disk using Windows Server
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Copy the necessary files
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Boot.ini
Modify Boot.ini
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Test the boot disk
4
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Understanding ARC Paths
multi(0)disk(0)rdisk(1)partition(2)
No BIOS
multi(0)
scsi(0)
rdisk(0)
rdisk(1)
disk(0)
partition(1)
partition(1)
partition(1)
partition(2)
partition(2)
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Recovering a Failed RAID-5 Volume

• Recover a disk identified as Offline, Missing,
  or
• Online (Errors)

Disk 1
Disk 2
Disk 3
Parity
Parity
Parity
Parity
Parity
Parity
Reactivate Disk

• When Reactivate Disk fails
• to recover the RAID-5
• volume, replace the
• failed disk and
• regenerate the RAID-5
• volume

Disk 1
Disk 2
Disk 3
Regenerate Volume on New Disk
Replace Failed Disk
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Managing Volumes on Disks

• Deleting Spanned Volume and Striped Volume
• Deleting a spanned volume or striped volume
  deletes all of the data that the volume contains
• You can delete entire volume only
• Repairing and Deleting RAID-5 Volume
• Repairing a RAID-5 volume requires additional
  disk with sufficient free space
• Deleting a RAID-5 volume deletes all data that
  the volume contains
• You can delete entire RAID-5 volume only

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Adding Disks

• Adding a New Disk
• Adding Disks from Other Computers
• Failed Incomplete Volume and Failed Redundancy
  Mean Disk is Missing from Volume

Import Foreign Disk
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What Is a Foreign Disk?

• A dynamic disk when moved to a local computer
  from another computer running
• Windows 2000 Professional and Server family
• Windows XP Professional
• Windows Server 2003 family
• A disk moved within the same system,
  in some cases
• A disk moved from a disk group to another
  computer that contains its own disk group can
  be displayed as a foreign disk

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Moving Dynamic Disks
Moving a disk

• When moving a dynamic disk, select import foreign
  disk to update the dynamic database on the newly
  added disk
• When moving multi-disk volumes, move all disks in
  the volume at the same time