Buffalo HS-D1.0TGL User Manual page 61

Advanced Settings
Maintenance (Disk Sleep Function)
If there are regular periods when your TeraStation is not in use, you may want to schedule disk
sleeping. Enable Disk Sleep, select the time that you want to initiate sleep mode, and select the
time that you want the TeraStation to "wake up" and resume normal operation. Click Apply...To.
avoid conflicts, do not use the Disk Sleep Function.concurrently.with.Disk Backup.
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