D-Link DNS-726-4 - Network Video Recorder Standalone DVR Product Manual page 81

Secton 4 - Troubleshootng
Respond.to.a.Critical.RAID.Volume
How the unit responds to a critical RAID Volume depends on the RAID level of your Volume and whether you have a
spare drive available:
For RAID.1 Volumes, if a spare drive is available, the RAID Volume will begin rebuilding itself automatically.
For RAID.1 Volumes, when no spare drive is available, you must replace the failed disk drive. The RAID Volume will begin rebuilding itself when you install the new
disk drive.
RAID.0 Volumes go offline after a disk drive failure. A RAID.0 volume cannot be rebuilt. All data on the volume will be lost.
Check.Enclosure.Status
Step 1: Click System/Device.Info button from the main menu.
Step 2: If CPU temperature is above specification:
Be sure there is adequate air flow around the device.
Be sure that the ambient temperature is below 35°C (95°F).
Step 3: Check the fan speed.
If the fan speed is below 1800 RPM, contact Technical Support.
If any power status item is out-of-specification, contact Technical Support.
Restore.the.Default.Administrator's.Password
If you forget the password, you can reset the password for "admin" to the default password: <empty>. Press and hold the
reset button for 5 seconds until the Power LED flashes three times. The Administrator password will now be blank.
Caution
When you reset or recover your unit, sometimes it will cause data corruption. Backup your recorded data before resetting
your unit.
D-Lnk DNS-722-4/DNS-726-4 User Manual 77