User manual

Chapter 5: RAID Monitoring & Maintenance
63
Array Critical Status
When WebPAM detects a fault in the Array, Enclosure or any other
component, it signals with a warning
icon over the affected
components in Tree View (below).
The Promise RAID Controller will also detect the fault and sound an
audible alarm.
Figure 77. Array Critical Status.
When this condition appears, click on each component to discover the
faulty one below it. The last component is the source of the fault.
In the example above, a disk drive has failed. As a result, the RAID has
lost its redundancy, although it will still read and write data.
When a disk drive fails, it disappears from the WebPAM interface. You
can identify the failed drive under Disk View, noting that there is no drive
showing for Channel 4. The drive in Channel 4 is the failed drive in this
example.
Figure 78. Automatic Rebuild started.
The Promise RAID controller will automatically attempt to repair the
array by rebuilding the failed disk drive (above).
Important
If the same disk drive repeatedly fails and makes the array
go critical, replace the disk drive with one of the same
capacity
.