Replacing a Sun ZFS Storage 7x20 Battery

You might need to replace the battery if the Sun ZFS Storage 7x20 controller fails to maintain the proper time when powered off and disconnected from the network. You will need a small (No.1 flat-blade) non-metallic screwdriver or equivalent. Use the following procedure to replace a Sun ZFS Storage 7x20 battery.

1. Power off the storage controller as described in Powering Off the Controller.
2. Disconnect the AC power cords from the rear panel of the storage controller.

   Caution:

   Because 3.3 VDC standby power is always present in the system, you must unplug the power cords before accessing any cold-serviceable components.
3. Extend the controller from the rack as described in Extending the Controller from the Rack.
4. Sun ZFS Storage 7120 or Sun ZFS Storage 7320: To remove the top cover:
   1. Unlatch the fan module door, pull the two release tabs back, rotate the fan door to the open position, and hold it there.
   2. Press the top cover release button, and slide the top cover to the rear about a half-inch (1.3 cm).
   3. Lift up and remove the top cover.
5. Sun ZFS Storage 7420: To remove the top cover:
   1. Simultaneously lift both cover latches in an upward motion.
      
      
      
   2. Lift up and remove the top cover.
6. Using a small, non-metallic screwdriver, press the latch, and remove the battery from the motherboard. The Sun ZFS Storage 7420 battery is shown here.
   
   
   

   The following figure shows the Sun ZFS Storage 7120 battery.

   
   
   
7. Press the replacement battery into the motherboard with the positive side (+) facing upward.
8. Sun ZFS Storage 7120 or Sun ZFS Storage 7320: Components may differ slightly between the Sun ZFS Storage 7120 and Sun ZFS Storage 7320; however, service procedures for each are identical. The illustration shows the Sun ZFS Storage 7320. To install the top cover:
   1. Place the top cover on the chassis so that it hangs over the rear of the storage controller by about an inch (2.5 cm), then slide the top cover forward until it seats.
   2. Close the fan cover and engage the fan cover latches. The cover must be completely closed for the storage controller to power on.
      
      
      
9. Sun ZFS Storage 7420: To install the top cover:
   1. Place the top cover on the chassis [1] so that it is forward of the rear of the storage controller by about an inch (2.5 cm).
   2. Slide the top cover toward the rear of the chassis [2] until it seats.
   3. Press down on the cover with both hands until both latches engage.
      
      
      
10. Push the release tabs on the side of each rail, and slowly push the storage controller into the rack, making sure no cables obstruct the path of the controller.
11. Reconnect all cables to their original ports, referring to the labels previously added as a guide. For cabling details, see the Oracle ZFS Storage Appliance Cabling Guide, Release OS8.8.x.
12. Connect the power cords to the power supplies.
13. Verify that standby power is on, indicated by the Power/OK status indicator flashing on the front panel about two minutes after the power cords are plugged in.
14. Use a pen, or other pointed object, to press and release the recessed Power button on the storage controller front panel. The Power/OK status indicator next to the Power button lights and remains lit.
15. Connect data cables to the PCIe card, routing them through the cable management arm.
16. When the system has finished booting, log in, and set the time using the steps in the task Setting Clock Synchronization (BUI) in Oracle ZFS Storage Appliance Administration Guide, Release OS8.8.x.