Troubleshooting; Replace A Failed Disk Drive; Respond To A Critical Raid Volume; Respond To A File System Error Raid Volume - NUUO NVRmini 2 User Manual

13. Troubleshooting

13.1 Replace a Failed Disk Drive

If a disk drive fails, the Disk Status LED becomes orange. If the disk drive
belongs to a RAID Volume, the Volume goes Critical or Offline, depending on
RAID level. See
Replace the failed disk drive with a new disk drive of the same or slightly
greater capacity. You do not have to power down the unit. Refer to
RAID Volume

13.2 Respond to a Critical RAID Volume

How the unit responding to a Critical RAID Volume depends on the RAID level
of your Volume:
For RAID 1, 5, and 10 volumes, you must replace the failed disk drive

with a new one. The RAID Volume will begin rebuilding itself when you
install the new disk drive. See
RAID 0 volumes go offline after a disk drive failure. A RAID 0 Volume

cannot be recovery. All data of the volume is lost.

13.3 Respond to a File System Error RAID Volume

When encountering file system error, you are unable to keep the data
anymore. It's likely due to abnormal usage and disk damage. In this case, if
you want to keep recording, we suggest replacing new disks, or try the
following methods.
1. Format this volume, and check if the status becomes functional. If yes,
you can start recording. If it doesn't, try the second method.
2. Delete this volume, and create volume again to see if the status is
functional.

13.4 Restore the Default Administrator's Password

If you forget the password, and want to reset the Administrator's password to
the default password: admin, follow the following steps.
1. Verify that the system is fully booted.
2. Insert your reset tool into the reset button hole on the back of the device.
Check RAID Volume Status
to remove the failed disk and replace it with a new one.
for details.
Replace a Failed Disk Drive
149
Modify
for details.