About Drive Failures
50
c
Observe all conventional ESD precautions when handling Engine modules and components.
If the optional System Director Appliance and Engine are not communicating:
•
Verify that the network cables from the Engine and the System Director are connected to the
same switch.
•
Check the indicators on the Controller (see
About Drive Failures
When a drive fails, the drive fault LED illuminates (see
“Media Pack and System Drives” on
) and the Management Console and Agent display an error (see the
Avid NEXIS
Administration Guide
).
If the failed drive is part of a Media Pack and a spare drive is available, the Media Pack status
changes to
Drive rebuilding
. The Media Pack is also rebuilt when a drive is removed from the
Engine, whether or not it has failed.
If a system drive fails, the Avid NEXIS Engine continues to operate, but you should replace the
failed drive as soon as possible. If both system drives in the same Engine fail, the Engine stops
operating because no metadata for writes can be recorded. If the Engine is part of a multi-Engine
configuration, the whole shared storage system fails due to the loss of the Engine.
For non-mirrored Workspaces, when one or more drives in the same Media Pack fail, the impact
depends on the number of Workspaces using storage on the Media Pack and the Media Pack
Protection Mode on the Workspaces. For example, if three Workspaces are using space on the same
Media Pack (in an Avid NEXIS | E2 Engine, for example), and the Workspaces use 0, one-, and two-
drive protection respectively, drive failures have the following impact:
When the new drive is inserted, Avid NEXIS automatically rebuilds the Media Pack or formats and
partitions the new system drive, as applicable.
Workspace Protection Type
(in Non-Mirrored Storage Group
Only)
Number of Drives
Failed
Result
0 (unprotected)
1
Workspace unusable
1
1
Workspace remains online
1
2
Workspace unusable
2
1
Workspace remains online
2
2
Workspace remains online
2
3
Workspace unusable