MSA7X Series Enclosure Midplane Replacement Instructions (436512-001, February 2007)

Hard drive LED combinations
Online/activity LED
(green)
Fault/UID LED
(amber/blue)
Interpretation
Flashing regularly
(1 Hz)
Amber, flashing
regularly (1 Hz)
Do not remove the
drive. Removing a
drive may
terminate the
current operation
and cause data
loss.
The drive is part of an
array that is
undergoing capacity
expansion or a stripe
size migration, but a
predictive failure alert
has been received for
this drive. To minimize
the risk of data loss, do
not replace the drive
until the expansion or
migration is complete.
Flashing regularly
(1 Hz)
Off
Do not remove the
drive. Removing a
drive may
terminate the
current operation
and cause data
loss.
The drive is rebuilding,
or it is part of an array
that is undergoing
capacity expansion or
a stripe size migration.
Flashing irregularly
Amber, flashing
regularly (1 Hz)
The drive is active, but
a predictive failure
alert has been received
for this drive. Replace
the drive as soon as
possible.
Flashing irregularly Off
The drive is active and
it is operating
normally.
Off Steadily amber
A critical fault
condition has been
identified for this drive
and the controller has
placed it offline.
Replace the drive as
soon as possible.
Off
Amber, flashing
regularly (1 Hz)
A predictive failure
alert has been received
for this drive. Replace
the drive as soon as
possible.
Off Off
The drive is offline, a
spare, or not
configured as part of
an array.
I/O module and system fan LEDs
Item Description
I/O module LED Green = System activity
Amber = Fault condition
Off = No system activity
System fan LED Green = Normal operation
Amber = Fault condition
Off = Fan unseated from connector or
failed
Removing the midplane
To remove the midplane:
1. Power down the enclosure:
a. Power down any attached servers. See the server
documentation.
b. Press the Power On/Standby button on the enclosure.
c. Wait for the system power LED to go from green to
amber.
d. Disconnect the power cords.
CAUTION: Be sure that the server is the first unit to be
powered down and the last to be powered back up.
Taking this precaution ensures that the system does not
erroneously mark the drives as failed when the server is
powered up.
2. Remove the power supplies by disconnecting the power
cord from each supply, pressing the lever inward (1) and
sliding the component out of the chassis (2).
3. Remove the system fans by pressing up on the lever on
each fan (1) and sliding the fan out of the chassis (2).