ATTO Technology Diamond Storage Array S-Class - Manual (Page 83)

72
Hot swapping
ClearDiskReservedArea (SledNum, 1)
ClearDiskReservedArea (SledNum, 2)
Set AtaDiskState (SledNum, 1, ONLINE)
Set AtaDiskState (SledNum, 2, ONLINE)
12 The new disk drive sled will be available for
system use 10 to 15 seconds after the disk
drives spin up and communication is
reestablished.
Power supplies
CAUTION CAUTION
Do not leave empty openings on the front or rear
of the Diamond Storage Array under any
circumstances. Empty openings affect airflow
and may cause the unit to overheat and shut
down.
WARNING
Hazardous voltage and stored energy hazard
when removing power supplies.
In a system with at least one operational power supply,
the other power supply can be successfully removed
and replaced without powering the system down and
with no loss of array functionality. The green activity
LED on the front of the system management card
identifies the operational status of each power supply
(Green means the power supply is operating
correctly).
Note
System command overlap is discontinued across
drives when only one power supply is operational.
Labels on the rear of the Diamond Storage Array point
to the A and B power supplies.
1 Identify the power supply to be swapped on the
rear of the unit.
2 Turn off the power supply on/off switch.
3 Disconnect AC line cord.
4 Unscrew the two screws on the power supply
with the appropriate tool.
5 Pull power supply out of chassis using the
power supply module handle.
6 Install new power supply in chassis with proper
orientation (Power supply is keyed and can only
be inserted one way).
7 Tighten the two screws on the power supply
with the appropriate tool.
8 Connect AC line cord
9 Turn on power supply switch.
10 Verify correct operation by observing that the
green light on the rear of the power supply is lit
and that the appropriate power supply light on
the system management card on the front of
the unit is lit.
Note
It takes up to 30 seconds for the system to
recognize the insertion or removal of a power
supply and change the LED on the system
management board. The CLI will issue messages
about the change (refer to
System Monitoring and
Reporting on page 79).
Blower assemblies
CAUTION CAUTION
Do not leave empty openings on the front or rear
of the array under any circumstances. Empty
openings affect airflow and may cause the unit
to overheat and shut down.
The array contains two blower assemblies. The
blowers are critical to proper array cooling operation.
However, the array can operate with only one
functional blower within certain ambient
temperatures. The blowers are electronically
connected to the power supplies and a power supply
will not run without its corresponding blower
assembly operating. This means if the blower adjacent
to power supply A is removed, the ‘A’ power supply
will shut down, turning off the corresponding LED on
the system management card. The CLI will issue a
message about the power supply being turned off.
To replace a blower assembly
1 Unscrew the two screws on the blower
assembly with the appropriate tool.
2 Pull the blower assembly out of chassis.
3 Install new blower assembly in chassis with
proper orientation (Blower assembly is keyed
and can only be inserted one way).
4 Tighten the two screws on the blower assembly
with the appropriate tool.
5 Verify correct operation by observing that the
green light is lit on the rear of the power supply,
and that the appropriate power supply green
light on the system management card on the
front of the unit is also on.
• It takes up to 30 seconds for the system to
recognize the insertion or removal of a power
supply and change the LED on the system