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Maintaining JSA3800 Power System

 

Maintaining the JSA3800 Power Supply

The JSA3800 appliance ships with two AC power supply modules. If one power supply fails, the second power supply takes over the entire power load.

Note

The JSA3800 appliance also supports DC power supply modules.

To maintain the power supplies, follow these guidelines:

  • Ensure that the power and grounding cables are arranged so that they do not obstruct access to other components.

  • Routinely check the power LED on the power supply module. If the LED status is green, the power supply is functioning normally.

  • Periodically inspect the site to ensure that the grounding and power cables connected to the JSA3800 appliance are securely in place and that there no moisture is accumulating near the appliance.

To monitor the power supply modules, execute the following commands:

  • To enable IPMI and boot, use # chkconfig ipmi on

  • To start IPMI service, use service ipmi start

  • To load IPMI driver, use modprobe ipmi_devintf

    For example, the following load driver is displayed:

    [root@hw-jsa3800 ~]# lsmod |grep ipmi

    ipmi_devintf 7729 Ø

  • For the IPMI hardware status, use # ipmitool sdr

Replacing an AC Power Supply on the JSA3800 Appliance

To replace an AC power supply:

  1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Remove the power cord from the power supply.
  3. Push the release tab of the power supply on the back panel of the chassis.
  4. Pull the power supply straight out of the chassis using the provided handle. Use one hand for support underneath the supply as you remove it.
  5. Orient the replacement power supply.
  6. Using both hands, slide the replacement power supply straight into the chassis until the power supply is fully seated in the chassis slot. Make sure the tab on the power supply clicks into place.
  7. Attach the power cord to the power supply. If the power supply is correctly installed and functioning normally, the power supply powers up immediately.

Replacing AC Power Supply Cables on the JSA3800 Appliance

To replace an AC power supply cord:

  1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Unplug the power cord from the power source receptacle.
  3. Unplug the power cord from the appliance inlet on the power supply.
  4. Locate a replacement power cord with the type of plug appropriate for your geographical location.
  5. Insert the power cord plug into an external AC power source receptacle.
  6. Connect the power cord to the power supply.
  7. Verify that the power cord does not block the air exhaust and access to device components, or drape where people could trip on it.
  8. If the power supply is correctly installed and functioning normally, the supply automatically powers up.

Replacing a DC Power Supply on the JSA3800 Appliance

To replace a DC power supply:

  1. Switch off the dedicated facility circuit breaker for the power supply being removed.
  2. Make sure that the voltage across the DC power source cable leads is 0 V and that there is no chance that the cables might become active during the removal process.
  3. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  4. Remove the clear plastic cover protecting the terminal studs on the faceplate.
  5. Remove the screws from the terminals. Use a number-2 Phillips screwdriver to loosen and remove the screws.
  6. Remove the cable lugs from the terminals.
  7. Carefully move the power cables out of the way.
  8. Push the tab of the power supply.
  9. Pull the power supply straight out of the chassis.
  10. Using both hands, slide the replacement power supply straight into the chassis until the power supply is fully seated in the chassis slot. Make sure the tab on the left edge of the power supply clicks into place.
  11. To connect the DC source power to the JSA3800 appliance, see Connecting the JSA3800 Appliance to a DC Power Source.

Replacing DC Power Supply Cables on the JSA3800 Appliance

To replace a DC power supply cable connected to JSA3800:

  1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Switch off the external circuit breakers for all the cables attached to the power supply. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance that the cables might become active during the removal process.
  3. Remove the clear plastic cover over the terminal studs on the faceplate.
  4. Remove the power cable from the DC power source.Note

    Ensure the cable is not touching or in the way of any components, and that it does not drape where people could trip on it.

  5. Attach the power cable to the DC power source. For more information, see Connecting the JSA3800 Appliance to a DC Power Source.
  6. Replace the clear plastic cover over the terminal studs on the faceplate.
  7. If the power supply is correctly installed and functioning normally, the supply automatically powers up.