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Windows Server® 2008 Administrator's Pocket Consultant by William Stanek

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Backing Up and Restoring the DHCP Database

DHCP servers store DHCP lease and reservation information in database files. By default, these files are stored in the %SystemRoot%\System32\DHCP directory. The key files in this directory are used as follows:

  • Dhcp.mdb The primary database file for the DHCP server

  • J50.log A transaction log file used to recover incomplete transactions in case of a server malfunction

  • J50.chk A checkpoint file used in truncating the transaction log for the DHCP server

  • Res1.log A reserved log file for the DHCP server

  • Res2.log A reserved log file for the DHCP server

  • Tmp.edb A temporary working file for the DHCP server

Backing Up the DHCP Database

The backup directory in the %SystemRoot%\System32\DHCP folder contains backup information ...

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