CRU DataPAK - Manual (Page 15)

DataPAK - Manual
Page 15
5.3.2.4 Degraded: RAID 3
The loss of a drive in a RAID 3 without Hot Spare will result in a degraded RAID state.
The LCD display will show a “Degraded” state and the RAID LED (yellow) will flash. The
RAID can be rebuilt by powering down the DataPAK and replacing the failed drive, prefer-
ably with the same model of drive. After the new drive is installed power up the DataPAK
and wait for DataPAK to initialize. When the DataPAK has initialized the LCD display will
prompt you to “Add new disk.” Select “yes” (left) and it will being to rebuild the RAID.
There will be a timer in the bottom right corner of the LCD that will give an approximate
time to completion. After the rebuild is finished the DataPAK will need to be rebooted. A
rebuild with 500GB drives will take approximately 1.5 hours.
Select “Yes” (left) and it will begin the rebuild of the RAID. There will be a timer in the bottom
right corner of the LCD that will give an approximate time to completion. After the rebuild is
finished the DataPAK will need to be rebooted. A rebuild with 250GB drives will take approxi-
mately 75 minutes.
The loss of two drives will result in a RAID failure. New drives will need to be inserted, prefer-
ably the same model of the drives that are getting replaced. Open Configurator 3.0 to set up a
new RAID. (see section 4.1.2)
5.3.2.4.1 RAID 3 with Hot Spare
If the RAID 3 is “3 + Hot Standby” then no manual rebuild is necessary. The hot spare will
automatically be added to the RAID. At the end of the rebuild power down the DataPAK and
replace the failed drive. After the new drive is installed power up the DataPAK and wait for it
to initialize. When the DataPAK has initialized the LCD display will prompt you to “Add new
disk.” Select “yes” (left) and that disk will be the new hot spare drive for the RAID.
NOTE: A degraded RAID 3 will stay mounted and can continue to transfer data. How-
ever, CRU-DataPort recommends disconnecting the unit during a rebuild if at all possible.