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Apple Filing Protocol (AFP) is the standard method of network communication between Macintosh computers. To allow Macintosh to work with our devices more effectively, our Ethernet Disk products are able to communicate using AFP.
AFP demands a small database file exist at the beginning of each network share to display its contents. On occasion, a power outage or other sudden interruption of the disk can cause the hidden database file on the drive to become corrupted and unusable. When this happens, AFP stops working, while SMB and FTP continue to function as expected.
The solution is to remove the corrupted database, and allow the generation of a new one. Follow the procedure below to do this.
IMPORTANT NOTE: The procedure below involves the use of the Terminal program. This program, if used incorrectly, can cause data loss, or other problems. Ensure everything is typed precisely to avoid data loss. Ensure an up to date backup exists prior to starting this process.
Connect to the drive using a different protocol. SMB is available on all computers, so use that to erase the files. From the Finder menu bar, click Go, then Connect to Server. Type in smb:// followed by the Ethernet Disk's IP address.
then press enter. Ensure a capital V is used in Volumes, as everything is case-sensitive within Terminal.
Next, type cd, followed by the name of the share needing repair. For example, if the share needing repair was named ED_mini, the command would be:
Press enter after the command has been entered. Finally, type:
rm -R ./.AppleDB
To avoid misspelling the command, in plain language, this is "R, M, Space, dash, R, space, dot, slash, dot, AppleDB." Press Enter when the command is typed.