Hp MSA 2040 SAN Storage Manuel d'utilisateur Page 29

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Powering on/powering off 29
Connect power cable to DC power supply
Locate two DC power cables that are compatible with your controller enclosure.
Figure 18 DC power cable featuring sectioned D-shell and lug connectors
See Figure 18 and the illustration at left (in Figure 17) when performing the following steps:
1. Verify that the enclosure power switches are in the Off position.
2. Connect a DC power cable to each DC power supply using the D-shell connector.
Use the UP> arrow on the connector shell to ensure proper positioning (see adjacent
left side view of D-shell connector).
3. Tighten the screws at the top and bottom of the shell, applying a torque between 1.7
N-m (15 in-lb) and 2.3 N-m (20 in-lb), to securely attach the cable to the DC power
supply module.
4. To complete the DC connection, secure the other end of each cable wire component
of the DC power cable to the target DC power source.
Check the three individual DC cable wire labels before connecting each cable wire lug to its power
source. One cable wire is labeled ground (GND) and the other two wires are labeled positive (+L) and
negative (-L), respectively (shown in Figure 18 above).
CAUTION: Connecting to a DC power source outside the designated -48V DC nominal range
(-36V DC to -72V DC) may damage the enclosure.
Connect power cord to legacy AC power supply
Obtain two suitable AC power cords: one for each AC power supply that will connect to a separate power
source. See the illustration at right [in Figure 17 (page 28)] when performing the following steps:
1. Verify that the enclosure power switches are in the Off position.
2. Identify the power cord connector on the power supply, and locate the target power source.
3. For each power supply, perform the following actions:
a. Plug one end of the cord into the power cord connector on the power supply.
b. Plug the other end of the power cord into the rack power source.
4. Verify connection of primary power cords from the rack to separate external power sources.
Power cycle
To power on the system:
1. Power up drive enclosure(s).
Press the power switches at the back of each drive enclosure to the On position. Allow several seconds
for the disks to spin up.
2. Power up the controller enclosure next.
Press the power switches at the back of the controller enclosure to the On position. Allow several
seconds for the disks to spin up.
To power off the system:
1. Stop all I/O from hosts to the system [see "Stopping I/O" (page 53)].
2. Shut down both controllers using either method described below:
+L
GND
-L
+L
GND
-L
+L
GND
-L
+L
GND
-L
Connector pins (typical 2 places)
Connector (front view)
Ring/lug connector (typical 3 places)
D-shell
(left side view)
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