Microsoft Windows XP/OS Chapt03

11

MANAGING DISKS AND FILE SYSTEMS

Chapter 3

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OVERVIEW

Monitor and configure disks Monitor, configure, and troubleshoot volumes Monitor and configure removable media, such as

tape devices Install, configure, and manage DVD and CD-ROM

devices Configure NTFS, FAT32, and FAT file systems Use disk optimization utilities: Disk Defragmenter,

Chkdsk, and Disk Cleanup

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DISK MANAGEMENT

Types of storage

Setting up hard disks

Adding new disks

Managing disks on remote systems

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BASIC VS. DYNAMIC STORAGE

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PARTITIONING A BASIC DISK

Primary PartitionsPrimary Partitions Extended PartitionsExtended PartitionsFour primary partitions maximum or up to three if there is an extended partition.

A basic disk can contain only one extended partition.

Can be marked as the active partition, BIOS looks for the active partition to locate boot files to start the operating system (only one active partition per hard disk).

Can’t be marked as the active partition.

Can be formatted and assigned a drive letter.

Divided into logical drives, each of which can be formatted and assigned a drive letter.

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VOLUMES ON A DYNAMIC DISK

Simple

Spanned

Striped

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UPGRADING BASIC DISKS TO DYNAMIC DISKS

Basic Disk StructureBasic Disk Structure Extended PartitionsExtended PartitionsPrimary partition Simple volume

Extended partition Simple volume for each logical drive and any remaining unallocated space

Logical drive Simple volume

Volume set Spanned volume

Stripe set Striped volume

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USING DISK MANAGEMENT TO MANAGE PARTITIONS, STORAGE TYPE, AND VOLUMES

Demonstration of Disk Management

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MANAGING STORAGE ON REMOTE SYSTEMS

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REMOVABLE STORAGE MANAGEMENT

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MEDIA POOLS

Free

Import

Unrecognized

Application-specific

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MANAGING COMPRESSION

Compression methods:

Compressed folders

NTFS compression

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COMPRESSED FOLDERS

Compatible with Zip compression programs

Can be stored on FAT volumes and removable media

Can be e-mailed

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NTFS COMPRESSION

Managed by the NTFS file system

Automatically compresses and uncompresses files

Managed via compression attributes on files and folders

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MOVING OR COPYING COMPRESSED FILES

Within an NTFS volume: Moved files retain their compression attribute. Copied files inherit the attribute of the target

folder.Between NTFS volumes: All files inherit the attribute of the target folder.To FAT or FAT32 partitions: Files are uncompressed. (FAT does not support

compression.)

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ENCRYPTING FILE SYSTEM

Based on public key cryptography

256-bit Advanced Encryption Standard (AES) encryption

Incompatible with NTFS compression

Recovery agent can recover encrypted files

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ENCRYPTING FILES

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DECRYPTING FILES

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COPYING OR MOVING ENCRYPTED FILES

Moving or copying a file into an encrypted folder encrypts it.

Moving or copying an encrypted file to an unencrypted folder does not decrypt it.

Copying or moving an encrypted file to another file system decrypts it. Moving or copying a file requires decryption

ability.

Files can be backed up in the encrypted state.

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SHARING ENCRYPTED FILES

The owner of an encrypted file can add additional users.

Works with files only.

One file at a time can be shared.

EFS is administered via the Details dialog box under Advanced Attributes for the encrypted file.

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SHARING ENCRYPTED FILES (CONTINUED)

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RECOVERING ENCRYPTED FILES

The encrypted file must be recovered by the key used in the DRF.

If the recovery key certificate is lost, the file cannot be recovered.

The recovery agent’s certificate should be protected.

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DISK QUOTAS

Per-user limits on data storage.

Limits the space per volume.

Space determination based on uncompressed file size.

Configured by default to all users.

Individual users can be excepted with an individual quota.

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DISK DEFRAGMENTER

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CHKDSK

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DISK CLEANUP

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SUMMARY

The Disk Management snap-in manages local and remote disks.

Use Disk Management to create volumes and format disks.

Basic disks contain partitions; dynamic disks use volumes.

NTFS compression and encryption are not compatible.

EFS encrypts data on NTFS volumes.

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SUMMARY (CONTINUED)

Protect the EFS recovery agent’s certificate to avoid losing files.

Use Disk Defragmenter, Chkdsk, and Disk Cleanup to optimize and repair disks.