XT Series DISK RECORDER - Version 10.01 - Software Technical Reference
Manual
Issue
10.01.D
EVS Broadcast Equipment SA
October 2009
43
REBUILD PROCESS
The XT[2] server is capable of performing a rebuild process of the SCSI RAID.
This process can happen either while the Multicam application is not running
(offline process – rebuild is faster) or while the Multicam application is running
(online process – rebuild is slower).
Disconnection process
As explained in the previous section, the software will disconnect a disk that does
not behave as expected.
Two options are available for the operator:
• Replace the disconnected disk and restart the server
o Start the Multicam application. The rebuild process will start
automatically.
o Start a hardware check from the EVS menu and launch the rebuild. The
process starts offline. The operator can wait for the rebuild to be
completed or cancel it (that is to say postpone it) and start the Multicam
application, in which case the rebuild carries on in online mode.
• The operator can also force the disk to be reconnected by starting the rebuild
process in the hardware check. The process starts offline. The operator can
wait for the rebuild to be completed or cancel it and start the Multicam
application, in which case the rebuild carries on in online mode.
Maximum duration for on-line rebuild:
• 5x73GB : 16.5h
• 5x146GB : 33h
• 5x300GB : 66h
• 10x300GB : 133h
• 15x300GB : 200h
Off-line rebuild time takes about 1.5h for 5x73GB disks, 3h for 5x146GB disks, 6h
for 5x300GB disks.
Note:
If errors are detected during the rebuild process, a message appears
after the rebuild is complete to warn the operator, and the raid is not
considered as properly rebuilt. In this state, the system will keep working
on 4 disks. If you want to run on 5 disks again, you can try replacing the
disk again and perform another rebuild, or clear all clips.
If you don’t need to retrieve the clips or the record trains, you don’t need to
rebuild the RAID. In this case, select the “Clear All Clips” answer when the
message with this option appears in the Hardware Check.