Networking / Beginners

Manually Compacting a DHCP Server

To support the offline compaction and repair of Jet databases, such as the DHCP database and the Windows Internet Name Service (WINS) database, Windows Server 2003 includes the Jetpack.exe tool.

The DHCP Server service performs dynamic Jet compaction of the DHCP database while the server is online-which reduces the need to use Jetpack.exe for offline compaction. However, offline compaction is a more efficient means of defragmenting the DHCP database than is dynamic compaction.

You should plan to use Jetpack.exe to compact a Jet database periodically whenever the database grows beyond 30 MB. In addition, performing offline compaction is recommended if you receive error messages indicating that the DHCP database has become corrupted.

To manually compact or repair the DHCP database, complete the following steps:

  1. On a DHCP server computer, open a command prompt.
  2. Use the Jetpack.exe tool to perform offline compaction.
    The correct syntax for Jetpack.exe is as follows:
    jetpack database_name temporary_database_name The following are example commands to compact the DHCP database:
    cd WINDOWS\system32\dhcp
net stop dhcpserver
jetpack dhcp.mdb tmp.mdb
net start dhcpserver
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In this tutorial:

  1. Configuring DHCP Servers and Clients
  2. Configuring the DHCP Server
  3. Benefits of DHCP
  4. Installing the DHCP Server Service
  5. Authorizing the Server
  6. Configuring Scopes
  7. IP Address Range
  8. Exclusion Ranges
  9. Using the 80/20 Rule for Servers and Scopes
  10. Creating Reservations
  11. Assigning DHCP Options
  12. Activating a Scope
  13. Networking Configuring the Client
  14. Migrating from APIPA or Alternate Configurations
  15. Migrating ICS Clients
  16. Installing and Configuring a DHCP Server
  17. Adding a DHCP Server Role
  18. Configuring a DHCP Client
  19. Managing DHCP in Windows Networks
  20. Changing DCHP Server Status
  21. Services Console
  22. Managing DHCP from a Command Line
  23. Connecting Clients to Remote DHCP Servers
  24. Using Superscopes
  25. Changing the Addressing of a Subnet
  26. Backing Up the DHCP Server Database
  27. Performing a Manual Backup
  28. Manually Compacting a DHCP Server
  29. Using Options Classes
  30. Implementing User Classes
  31. Performing a Manual Backup of the DHCP Server
  32. Creating a New Superscope
  33. Configuring DHCP Servers to Perform DNS Updates
  34. Configuring Dynamic Updates with DHCP
  35. Using the DnsUpdateProxy Security Group
  36. Adding Members to the DnsUpdateProxy