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1556 a 07

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  • 1. Module 7:Managing Data Storage
  • 2. Overview  Managing Data Compression  Managing Disk Quotas  Encrypting Data  Using Disk Defragmenter  Troubleshooting Data Storage
  • 3.  Managing Data Compression  Defining Compressed Files and Folders  Compressing Files and Folders  Copying and Moving Compressed Files and Folders  Best Practices for Managing Data Compression
  • 4. Defining Compressed Files and Folders  Files and Folders Have a Compression State  Windows 2003 Automatically Uncompresses Accessed Files  Space Allocation Based on Uncompressed File Size  Display Color Designates Compressed Files and Folders W FolderA Compressed FileA FileB NTFS Partition Compressed
  • 5. More  Use compression when you need more space on your hard-disk drive.  Compressing files, folders, and programs decrease their size and reduces the amount of space they use on drives or removable storage device. You can also compress disk drives.
  • 6. More  Space allocation : when files are copied, NTFS calculates disk space based on the size of the uncompressed file. This is important because files are uncompressed during the copy process and the system must be sure there is enough space for the uncompressed file. If you copy a compressed file to an NTFS partition that does not have enough space for the uncompressed file, an error message notifies you that there is not enough disk space for the file.
  • 7. Compressing Files and Folders Advanced Attributes Choose the settings you want for this folderFolderA Properties When you apply these changes you will be asked if you General Web Sharing Sharing Security want the changes to affect all subfolders and files as well. FolderA Archive and Index attributes Folder is ready for archiving Type: File Folder Index contents for fast file searching Location: C: Size: 0 bytes Compress or Encrypt attributes (mutually exclusive) Size on disk: 2.00 KB (2,048 bytes) Compress contents to save disk space Contains: 1 Files, 0 Folders Encrypt contents to secure data Created: Wednesday, September 16, 1998, 10:44:01 AM OK Cancel Attributes: Read-only Advanced... Hidden OK Cancel Apply
  • 8. Copying and Moving Compressed Files and Folders NTFS Partition NTFS Partition A B Move Copy Inherits Retains NTFS Partition NTFS Partition C Copy Inherits D Move  No Compression on Non-NTFS Partitions or Floppy Disks
  • 9. Best Practices for Managing Data Compression Determine Which File Types to Compress Do Not Compress Already Compressed Files Use Different Display Colors for Compressed Files and Folders Compress Static Data Rather Than Data That Changes Frequently
  • 10.  Managing Disk Quotas = quantium  Defining Disk Quotas  Using Disk Quotas  Setting Disk Quotas  Monitoring Disk Quotas  Best Practices for Managing Disk Quotas
  • 11. Defining Disk Quotas  Usage Calculation Based on File and Folder Ownership  Compression Ignored When Calculating Usage  Free Space Reported to Applications Is Based on Quota  Windows 2003 Tracks Disk Quotas for Each NTFS Partition  Only Available on NTFS Partitions
  • 12. Using Disk Quotas Allocated to User1 Allocated to User2 NTFS Allocated to User3 Partition Allocated to User4 Disk 50-MB disk quota Allocated to User5 Quota 40-MB warning level  Set Limits to Control Hard Disk Space Usage  Monitor Partition Usage on a Per-User Basis
  • 13. Setting Disk Quotas Local Disk Properties General Tools Hardware Sharing  Set Quotas for All Security Quota Web Sharing Users Status: Disk quota system is active  Set Quotas for Enable quota management Individual Users Deny disk space to users exceeding quota limit Select the default quota limit for new users on this volume: Quota Entries for Local Disk (C:) Do not limit disk usageQuota Edit View Help Limit disk space to No Limit Set warning level to No LimitStatus Name Logon Name Amount Used Select the quota Warningoptions forPercent Used Quota Limit logging Level this volume: Log event when a user exceeds their quota limit OK DomainTom 36 MB 50 MB 40 MB 72 OK DomainSue 17MB Log event when a user exceeds their warning level 50 MB 40 MB 34 Warning DomainJim 48MB 50 MB 40 MB 96 Quota Entries... Above Limit DomainPeg 52MB 50 MB 40 MB 104 OK DomainAdmin 127MB No Limit OK Limit Cancel No N/A Apply5 total item(s), 1 selected
  • 14. Monitoring Disk Quotas Quota Entries for Local Disk (C:)Quota Edit View Help Status Name Logon Name Amount Used Quota Limit Warning Level Percent Used OK DomainTom 36 MB 50 MB 40 MB 72 OK DomainSue 17MB 50 MB 40 MB 34 Warning DomainJim 48MB 50 MB 40 MB 96 Above Limit DomainPeg 52MB 50 MB 40 MB 104 OK DomainAdmin 127MB No Limit No Limit N/A5 total item(s), 1 selected Status Icons - OK - Exceeds Warning Threshold - Exceeds Limit
  • 15. Best Practices for Managing Disk Quotas Set Quota Limits for Partitions on Shared Client Computers Log On as Administrator to Install Components and Applications Generate Disk Usage Information Set Restrictive Default Limits; Modify Specific Disk Quota Entries Set Quotas on Shared Partitions Enable Quotas Before a Partition Is Used Delete Quota Entries for Inactive Users
  • 16.  Encrypting Data  Defining the Encrypting File System  Encrypting Files and Folders  Copying and Moving Encrypted Files and Folders  Best Practices for Encrypting Data
  • 17. Defining the Encrypting File System Encryption Hello User *&^1  Ensures Data Security  Automatic Encryption and Hello Decryption Decryption
  • 18. Encrypting Files and Folders Confirm Attribute Changes Advanced Attributes You have chosen to make the following attribute change(s): encrypt Choose the settings you want for this folder When you apply these changes Do you want to apply this change to this folder only, or do want to you will be asked if you want the changes to affect all subfolders and subfolders and files as well? apply it to all files as well. Archive and Index attributes Apply changes to this folder only Folder is ready for archiving Apply changes to this folder, subfolders and files Index contents for fast file searching OK Cancel Compress or Encrypt attributes (mutually exclusive) Compress contents to save disk space Encrypt contents to secure data OK Cancel
  • 19. Copying and Moving Encrypted Files and Folders NTFS Partition NTFS Partition Move Move Move *&^1 *&^1 Hello Copy )-h@’ Copy )-h@’ Encrypted Encrypted NTFS Partition Non-NTFS Partition Move Hello Hello Copy Unencrypted
  • 20. Best Practices for Encrypting Data Develop Encryption Policy for Non-Secured Data Educate Users About Data Security Create Encrypted Copies for Non-NTFS and Floppy Disk Encrypt Data Files
  • 21.  Using Disk Defragmenter  Defining Disk Defragmenter  Defragmenting Partitions  Best Practices for Using Disk Defragmenter
  • 22. Defining Disk Defragmenter  File and Folder Fragmentation Reduces Performance  Disk Defragmenter Consolidates Fragmented Files and Folders  Analyze a Hard Disk Before Defragmenting Defragment
  • 23. Defragmenting Partitions Disk Defragmenter Action View Volume Session Status File System Capacity Free Space % Free Space (C:) Defragmenting NTFS 1.451 MB 374 MB 25% New Volume (D:) NTFS 549 MB 544 MB 99% Analysis Display: Defragmentation Display: Analyze Defragment Pause Stop View Report Fragmented files Contiguous files System files Free space
  • 24. Best Practices for Using Disk Defragmenter Defragment Hard Disks During Low Usage Times Educate Users to Defragment Their Local Hard Disks Analyze Hard Disks Before Installing Large Applications Defragment Partitions Based on the Role of the Computer
  • 25. Troubleshooting Data StorageErr or Cannot Save a Compressed File to a PartitionErr or Cannot Delete a Quota EntryErr or File Encryption FailsErr or Gaining Access to Resources Becomes Slow
  • 26. Review  Managing NTFS Compression  Managing Disk Quotas  Managing Encryption  Using Disk Defragmenter  Troubleshooting Data Storage

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