Managing disk arrays – 360 Systems MAXX-6T User Manual

Page 96

Advertising
background image

____________________________________________________________________________________

Page 96

MAXX 6T Owner’s Manual

MANAGING DISK ARRAYS

The Image Server’s Disk Array Configuration Utility provides tools for monitoring and managing the
disk array. Monitoring and troubleshooting programs automatically check the array, report
problems and provide access to RAID status information and service options.

If up to two drive faults should occur, it should not cause data loss; but remember that the drive
array is degraded and no longer has fault tolerance. Hence, another disk failure will cause a
complete loss of data and system failure. After a drive failure it is strongly recommended that at the
earliest time diagnostics be performed.

Error Notification and Repair
The Image Server will notify users in the event of a fault by flashing the front panel DRIVES light. A
failure condition will also be indicated in the Image Server GUI in the status bar, on the bottom of
the screen and highlighted in yellow (Figure 38 ). A GPIO Output can be programmed to activate
upon a RAID or system fault. This can be used to activate a warning lamp or alarm. Refer to Page 40
for more information on Mapping GPIO events. A drive fault can be trigged by a variety of
conditions. The first step in response to a flashing light is to open the RAID CHECK STATUS
window from the On-Screen Start Menu. Click Start > System > RAID Status to launch the Array
Configuration Utility.

Figure 38 - GUI Drive Fault Indication

The RAID Status window (Figure 41) displays the current status of the RAID controller and all disks
connected to the RAID system. On inspection, you will find the array in one of the following states:

• OK, indicated by "OK" for Array Unit 0 and all Ports (drives);
• Initializing, indicated by "Initializing" on the Array Unit 0 status line;
• Degraded, indicated by "Degraded" on the Array Unit 0 status line;
• Rebuilding, indicated by "Rebuilding x%" on the Array Unit 0 status line.
• Verifying, indicated by "Verifying x%" on the Array Unit 0 status line.

“Rebuilding” is the process by which the array controller corrects data parity errors that may have
occurred because of power loss, incorrect shutdown or some other data error. Upon detection of a
parity error, the controller will automatically start the rebuilding process as a background task. This
task should not interfere with Image Server’s ability to record or play clips.

Advertising