Buffalo TeraStation TS4800D User Manual page 65

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Hold down the function button on the front of the TeraStation for 3 seconds until it beeps. The TeraStation will start
rebuilding the RAID array automatically. It takes about 5 minutes before the message "RAID I18 ARRAYx Rebuilding"
is displayed.
For RAID 51 or RAID 61:
The TeraStation will start rebuilding the RAID array automatically. After a few minutes, the message "RAID I18
ARRAY x Rebuilding" will be displayed until the array is rebuilt.
If more than 3 drives were replaced in a RAID 51 array, or if more than 4 drives were replaced in a RAID 61 array,
wait 10 minutes after I18 appears and navigate to Drives - RAID in Settings. Select the RAID array and check if
"Recover RAID Array" button is displayed. If so, select the drives that were not included in the RAID array and click
Recover RAID Array.
Drive Replacement (RAID 0)
Drives in a RAID 0 array do not automatically turn off in the event of a malfunction. Before replacing the failed drive,
either dismount the drive from Settings, or shut down the TeraStation.
This section describes the process of replacing a drive with
Note: If a hard drive malfunctions in RAID 0, all data on the RAID array will be lost. All of the settings for the shared
folders (such as access restrictions) are erased after replacing a drive from a RAID 0 array.
1
Open the front cover with the included key.
2
In Settings, navigate to Drives - Drives.
3
Select the hard drive with the flashing status LED and click Dismount Disk.
Note: Once you reboot the TeraStation after the drive failed, the status LED will be back to normal flash (green). In
such case, select "Unformatted" drive from the list and click Dismount Disk.
4
Enter the number that appears on the screen, then click OK.
5
The status LED will stop flashing and glow steadily.
6
Unlock the failed drive by pushing the unlock button and swinging the lock mechanism out.
7
Pull out the hard drive cartridge and remove it from the TeraStation.
8
Insert the new hard drive (sold separately) into the empty slot. Slide the drive in with the locking mechanism open.
Swing the lock back down until it clicks into place.
9
When the replacement drive is recognized, the status LED will flash red.
Select the RAID array from Drives - RAID in Settings and click Delete RAID Array. In Drives - Drives, click Format Disk to
format the new drive. In Drives - RAID, choose the type of RAID array desired. Enter the confirmation number and
click OK. Create a shared folder before use.
Drive Replacement (using a redundant RAID mode such as RAID 1, 5, or 6 with a hot
spare configured)
If your TeraStation's drives are in a redundant RAID mode, and you have a hot spare enabled, a malfunctioning drive in
the array is replaced by the spare disk and the RAID array is rebuilt automatically. The status LED will continue to glow
red for the failed drive even after the RAID array is rebuilt with the hot spare. This section describes the replacement
process for a hard drive while the TeraStation is still on.
the TeraStation on.
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