Executing the Defrag Procedure on an AW4416 Hard Drive

NOTE: The AW4416 Operating System must be updated to at least version 1.3 to be able to perform this procedure. Go to the ‘AW4416 Registration and Software Upgrade’ page for further information about obtaining the latest Operating System. http://www.yamaha.com/proaudio/products/aw4416_upgrade.htm

After frequent recording and editing, audio data saved or recorded to the AW4416’s internal hard disk will gradually become scattered or “fragmented” across multiple locations on the disk. The result can be slower access speeds as the AW4416 must search through different parts of the fragmented disk for the audio data that belongs to a particular audio file. If this becomes severe, the access speed during playback may be slowed enough to cause “skips” in the sound, or it may be impossible to create a new song even when there appears to be sufficient free space.

The Defrag function solves the problem of fragmentation. When Defrag is executed, the audio data on the internal hard disk will be transferred to a vacant area, and will be rearranged so that the data for each song is located in a continuous area on the disk.

NOTE: The Defrag operation normally requires approximately one hour per GB of disk space, depending on the arrangement of data on the hard disk and on the song structure. In some cases, processing may end before the displayed time.

WARNING: It is possible that while Defrag is being executed, a read/write error will occur on the hard disk, damaging the audio data without the possibility of recovery. To avoid the potential loss of important Song data, it is recommended that the data residing on the hard disk be saved to another location before performing this procedure.

WARNING: The AW4416 should never be turned off while Defrag is in progress. If the power is turned off while the Defrag operation is being performed, the internal hard disk and/or the data may be damaged severely and irrecoverably. Before beginning this procedure, make sure that the power cable is secured and there is no chance that it will be accidentally unplugged from the outlet. Also, do not perform this operation if there is any possibility of power failure due to lightening or power line irregularities.

1) Press the [FILE] button to open the ‘FILE’ menu page.
2) Press the [F3] button to open the ‘DISK UTILITY’ tab page. Click here to view.
3) Turn the DATA/JOG Dial until the the ‘DRIVE’ select box displays ‘INT.IDE’. Click here to view.
4) Press the [ENTER] button. The ‘DEFRAG EXECUTE’ and ‘FORMAT EXECUTE’ prompts will appear on the ‘DISK UTILITY’ page. Click here to view.

NOTE: If the ‘DEFRAG EXECUTE’ prompt does not appear on the ‘DISK UTILITY’ page, the AW4416’s Operating System must be updated. Click here to go to the ‘AW4416 Registration and Software Upgrade’ page for further information about obtaining the latest Operating System.

5) Press the > ‘CURSOR’ button to select ‘DEFRAG EXECUTE’.
6) Press the [ENTER] button. The ‘CONFIRMATION’ prompt will appear.

NOTE: If the message ‘Defrag Cluster Not Found!’ appears the internal hard disk is not
fragmented and Defrag cannot be executed.

7) Select one of the following options from the ‘CONFIRMATION’ prompt window.
a) Press the > ‘CURSOR’ button to select ‘OK’.
or
b) Select ‘CANCEL’ to exit the procedure.
8) Press the [ENTER] button to confirm the selection.

NOTE: Once the Defrag operation is in progress it is possible to cancel the operation by selecting ‘CANCEL’ in the ‘PROGRESS MESSAGE’ window, and then pressing the [ENTER] button.

Reference: AW4416 Supplement Owner’s Manual, Additions and changes in versions 1.2, 1.3, p. 3

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