User Manual

7. Troubleshooting

7.1 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 Check RAID Volume Status for details.

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 Modify

RAID Volume to remove the failed disk and replace it with a new one.

7.2 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 Replace a Failed Disk Drive for details.

 RAID 0 volumes go offline after a disk drive failure. A RAID 0 Volume

cannot be recovery. All data of the volume is lost.

7.3 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.

7.4 Install ActiveX

If you cannot see the complete page of the system when using Internet

Explorer, it may be because the ActiveX installation process is not completed.