IBM Storwize V7000 Troubleshooting And Maintenance Manual page 121

DANGER
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4 When working on or around the system, observe the following precautions:
4 Electrical voltage and current from power, telephone, and communication cables are hazardous. To
4 avoid a shock hazard:
v Connect power to this unit only with the IBM provided power cord. Do not use the IBM
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4 provided power cord for any other product.
4 v Do not open or service any power supply assembly.
4 v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
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v The product might be equipped with multiple power cords. To remove all hazardous voltages,
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4 disconnect all power cords.
4 v Connect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet
supplies proper voltage and phase rotation according to the system rating plate.
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v Connect any equipment that will be attached to this product to properly wired outlets.
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4 v When possible, use one hand only to connect or disconnect signal cables.
4 v Never turn on any equipment when there is evidence of fire, water, or structural damage.
v Disconnect the attached power cords, telecommunications systems, networks, and modems before
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you open the device covers, unless instructed otherwise in the installation and configuration
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4 procedures.
4 v Connect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices.
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4 4
4 To disconnect:
4 4 1. Turn off everything (unless instructed otherwise).
4 4
2. Remove the power cords from the outlets.
4 4
3. Remove the signal cables from the connectors.
4 4
4. Remove all cables from the devices.
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4
(D005)
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4
4 Attention: Perform this procedure only if instructed to do so by a service action or the IBM support
4 center. This procedure requires that you shut down your Storwize V7000 system to replace the control
enclosure. If the system is still performing I/O requests, schedule the replacement during a maintenance
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4 period or other time when the I/O can be stopped.
Be careful when you are replacing the hardware components that are located in the back of the system
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4 that you do not inadvertently disturb or remove any cables that you are not instructed to remove.
Ensure that you are aware of the procedures for handling static-sensitive devices before you remove the
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4 enclosure.
To replace a control enclosure, perform the following steps:
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4 1. If you are able to access either of the node canisters with the service assistant, record the machine
4 type and model of the enclosure, the serial number of the enclosure, and the two WWNNs for the
enclosure.
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v From the service assistant home page, open the location data for the node. Record the machine
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4 type and model (MTM), the serial number, WWNN 1 and WWNN 2 from the enclosure column.
To connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
Chapter 8. Removing and replacing parts
105