Powering on/powering off
29
Figure 16
AC power supply
To power on the system:
1.
Obtain a suitable AC power cord for each AC power supply that will connect to a power source.
2.
Plug the power cord into the power cord connector on the back of the drive enclosure (see
Plug the other end of the power cord into the rack power source. Wait several seconds to allow the
disks to spin up.
Repeat this sequence for each power supply within each drive enclosure.
3.
Plug the power cord into the power cord connector on the back of the controller enclosure (see
). Plug the other end of the power cord into the rack power source.
Repeat the sequence for the controller enclosure’s other switchless power supply.
To power off the system:
1.
Stop all I/O from hosts to the system [see
2.
Shut down both controllers using
either
method described below:
• Use the SMU to shut down both controllers, as described in the online help and web-posted
HP
MSA 2040 SMU Reference Guide
.
Proceed to
• Use the CLI to shut down both controllers, as described in the
HP MSA 2040 CLI Reference Guide
.
3.
Disconnect the power cord male plug from the power source.
4.
Disconnect the power cord female plug from the power cord connector on the power supply.
NOTE:
Power cycling for enclosures equipped with a power switch is described below.
DC and AC power supplies equipped with a power switch
DC power supplies and legacy AC power supplies are shown below. Each model has a power switch.
Figure 17
DC and AC power supplies with power switch
Power cord connect
Power
switch
Power
cable
connect
Power
switch
Power
cord
connect
DC power supply unit
Legacy AC power supply unit
Summary of Contents for MSA 2040
Page 8: ...8 Figures ...
Page 10: ...10 Tables ...
Page 32: ...32 Installing the enclosures ...
Page 44: ...44 Connecting hosts ...
Page 50: ...50 Connecting to the controller CLI port ...
Page 52: ...52 Basic operation ...
Page 70: ...70 Troubleshooting ...
Page 74: ...74 Support and other resources ...
Page 76: ...76 Documentation feedback ...
Page 88: ...88 LED descriptions ...
Page 94: ...94 Electrostatic discharge ...
Page 100: ...100 Index ...