Oracle ZFS Storage Appliance Service Manual page 103

The following image shows the chassis.
Reconnect all cables to their original ports, referring to the labels previously
12.
added as a guide. For cabling details, see the
Cabling Guide.
Connect the power cords to the power supplies.
13.
14. 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.
Use a pen or other pointed object to press and release the recessed Power
15.
button on the storage controller front panel.
The Power/OK status indicator next to the Power button lights and remains lit.
Replacing a ZS3-4 DIMM
Oracle ZFS Storage Appliance
Servicing the ZS3-4 Controller 103