Dell PowerVault NX300 Hardware Owner's Manual - Page 88

Installing a Hard Drive Into a Hard-Drive Carrier, Power Supplies, Removing a Redundant Power Supply

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Installing a Hard Drive Into a Hard-Drive Carrier 1 Insert the hard drive into the hard-drive carrier with the connector end of the drive at the back. See Figure 3-6. 2 Align the holes on the hard drive with the back set of holes on the hard drive carrier. When aligned correctly, the back of the hard drive will be flush with the back of the hard-drive carrier. 3 Attach the four screws to secure the hard drive to the hard-drive carrier. Power Supplies Your system supports the following power supply modules: • 480 W (non-redundant power supply) • 500 W (redundant power supply) If two power supplies are installed, the second power supply provides hotswappable, power redundancy. In redundant mode, the system distributes the power load across both power supplies to maximize efficiency. When a power supply is removed with the system powered on, the full power load is picked up by the remaining power supply. Removing a Redundant Power Supply CAUTION: The system requires one power supply to operate the system normally. On power-redundant systems, remove and replace only one power supply at a time in a system that is powered on. 1 Disconnect the power cable from the power source. 2 Disconnect the power cable from the power supply and remove the Velcro straps that bundle and secure the system cables. NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with power-supply removal. For information about the cable management arm, see the system's rack documentation. 3 Pull the power supply straight out to release it from the power distribution board and clear the chassis. 88 Installing System Components

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88
Installing System Components
Installing a Hard Drive Into a Hard-Drive Carrier
1
Insert the hard drive into the hard-drive carrier with the connector end of
the drive at the back. See Figure 3-6.
2
Align the holes on the hard drive with the back set of holes on the hard
drive carrier.
When aligned correctly, the back of the hard drive will be flush with the
back of the hard-drive carrier.
3
Attach the four screws to secure the hard drive to the hard-drive carrier.
Power Supplies
Your system supports the following power supply modules:
•
480 W (non-redundant power supply)
•
500 W (redundant power supply)
If two power supplies are installed, the second power supply provides hot-
swappable, power redundancy. In redundant mode, the system distributes the
power load across both power supplies to maximize efficiency. When a power
supply is removed with the system powered on, the full power load is picked
up by the remaining power supply.
Removing a Redundant Power Supply
CAUTION:
The system requires one power supply to operate the system normally.
On power-redundant systems, remove and replace only one power supply at a time
in a system that is powered on.
1
Disconnect the power cable from the power source.
2
Disconnect the power cable from the power supply and remove the Velcro
straps that bundle and secure the system cables.
NOTE:
You may have to unlatch and lift the optional cable management arm if
it interferes with power-supply removal. For information about the cable
management arm, see the system’s rack documentation.
3
Pull the power supply straight out to release it from the power distribution
board and clear the chassis.