Turning The Storage Subsystem On And Off; Turning On The Storage Subsystem - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

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Turning the storage subsystem on and off

Turning on the storage subsystem

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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User's, and Maintenance Guide
In addition to these inspection and maintenance responsibilities, IBM also strongly
recommends DS4000 training for staff that supports DS4000 storage configurations.
Although training is not a part of the Health Check process, DS4000 training
reduces the potential for configuration problems and contributes to the overall
health of the system.
This section contains instructions for turning the storage subsystem on and off
under normal and emergency situations.
If you are turning on the storage subsystem after an emergency shutdown or power
outage, see "Restoring power after an emergency shutdown" on page 95.
Important: You must turn on the storage expansion enclosures and verify that the
storage expansion enclosures' FC connections are optimal by checking
the indicator lights before you turn on the DS4300 storage subsystem.
The controllers might not recognize the correct configuration if the hard
disk drives are powered up after the DS4300 storage subsystem. For
instructions on powering up the storage expansion enclosures, refer to
the storage expansion enclosure documentation.
Note: Always wait at least 30 seconds between the time you turn off a power
switch and the time you turn on the power again.
Use this procedure to turn on the power for the initial startup of the storage
subsystem:
1. Verify the following:
a. All communication and power cables are plugged into the back of the
storage subsystem and a properly grounded ac electrical outlet.
b. All hard disk drives are locked securely in place. For more information, see
"Installing hot-swap drives" on page 121.
Note: At least two drives must be present before you start the DS4300
storage subsystem.
Attention: If you are restarting the system after a normal shutdown, wait at
least 30 seconds before you turn on the power by using the power-on sequence
in step 2.
2. Check the system documentation for the hardware devices that you intend to
power up, and then determine the proper startup sequence. Use the following
power-on sequence, where applicable:
a. Turn on the power to the supporting devices (for example, Ethernet switches
and management stations) before the storage subsystem.
Attention: If you will be directly managing the storage array, you must set
up the Dynamic Host Configuration Protocol (DHCP) or BOOT-P server
before turning on the power. Setting up the server allows the controllers to
obtain the corresponding IP address when you turn on the power to the
array module. For more information, see the software installation guide for
your operating system.
b. You must turn on the storage expansion enclosures before the storage
subsystem. The controllers might not recognize the correct configuration if