ATTO Technology V-Class Manuale Utente

Pagina di 117
88
Hot swap hardware
12 If you do not have 
AutoRebuild enabled
, using 
the disk drive sled number identified in step 2, 
on the control computer
 
Ready prompt type:
ClearDiskReservedArea (SledNum, 1)
ClearDiskReservedArea (SledNum, 2)
Set AtaDiskState (SledNum, 1, ONLINE)
Set AtaDiskState (SledNum, 2, ONLINE)
ResolveLUNConflicts
13 The new disk drive sled is 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 array under any circumstances. Empty 
openings may cause the unit to overheat.
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 some drives when only one power 
supply is operational.
Labels on the rear of the array point to the A 
and B power supplies. 
1
Identify the power supply to be swapped.
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 the power supply out of the chassis using 
the power supply module handle.
6
Install a new power supply in the chassis. The 
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 the power supply switch.
10 Verify correct operation by observing that the 
green light on the rear of the power supply is lit 
and 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 issues 
messages about the change (refer t
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: if the 
blower adjacent to power supply A is removed, the ‘A’ 
power supply shuts down, turning off the 
corresponding LED on the system management card. 
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 a new blower assembly in the chassis> 
The 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 on the rear of the power supply is lit, 
and the appropriate power supply green light on 
the system management card on the front of 
the unit is also on. 
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