Dell PS-M4110, Installation Manual

Page: 28 / 70

22
Dell EqualLogic PS-M4110 Installation Guide Chapter 3 Installing an Array
Condition Level Possible Reasons
•
Internal communication failure
•
No progress with replication
•
Spare drive too small
•
Time of day clock battery low
•
Incorrect physical RAM size
•
More spare drives than expected
•
Spare drive is of wrong type
•
Solid-state drive added to RAID set
Critical
•
Critical hardware component failure
•
High or low ambient temperature
•
RAID set double fault
•
RAID lost cache
•
RAID set lost-block table full
•
RAID orphan cache
•
Multiple RAID sets present
•
Incompatible control module
•
Enclosure management link failure
•
Enclosure open too long
•
Degraded parity
•
C2F power module failure
•
RAID set unresolved
•
Fabric mismatch
•
No communications with CMC
Releasing the Array Inner Drawer Safety Latch
It may be necessary to open the PS-M4110 array's inner drawer (containing the drives and control modules)
when it is removed from the M1000e enclosure.
When the PS-M4110 is out of the M1000 enclosure, the array's drawer cannot be opened unless its safety locking
mechanism is released.
There is a release button located on the side of the PS-M4110 array that releases the latch that secures the
array's drawer to its outer housing. This prevents the array's drawer from opening accidentally during handling
when outside of the M1000e enclosure.
To open the array drawer, press and hold the release button to manually unlock the safety latch.
The location of the release button is shown in Figure 11 .