Testing Enclosure Connections; Grounding Checks; Updating The Firmware - Seagate Exos E 4U106 Hardware Installation And Maintenance Manual

IMPORTANT: The 4U106 enclosure is fitted with two redundant PSUs. All power cords must be connected to
at least two separate and independent power supplies to ensure redundancy.
• Figure 58 (page 63)
• The C20 plug on the PSU connects to the C19 receptacle of the power cord. The C20 plug on the power cord
connects to the C19 receptacle in the PDU.
CAUTION: Power connection concerns:
• Never connect the power cord to the PSU before installing the PSU in the system.
• Always remove the power connections before you remove the PSU from the enclosure.
• Whether standard (single-lead) or bifurcated (Y-lead), power cords must only be connected to a supply range of
200–240VAC as indicated on each PSU's hazardous voltage warning label.

Testing enclosure connections

See "Powering on/powering off" (page
be connected.

Grounding checks

The product must only be connected to a power source that has a safety electrical earth connection.
CAUTION: If more than one enclosure goes in a rack, the importance of the earth connection to the rack
increases because the rack will have a larger earth leakage current (touch current).
Examine the earth connection to the rack before power on. An electrical engineer who is qualified to the
appropriate local and national standards must do the examination.

Updating the firmware

After installing the hardware and powering on the storage system components for the first time, verify that the
system USM firmware (including controller modules, expansion modules, power supplies, and VPDs) as well as
drives are using the current firmware release. Additionally, ensure that the system configuration (including SAS
zoning) is correct per the solution requirements.
The JBOD Firmware Update utilities (both jbodupdate and UUT), are cross-platform tools combining both the
enclosure firmware content itself, and the logic required to detect and update any attached enclosures. These
utilities support the ability to discover available Seagate enclosures and display an inventory list of all enclosure
firmware components and their versions. Refer to the utility user guide, firmware release notes and relevant
solution documentation for instructions on safely using the firmware update utilities in a given solution.
Periodically, you should ensure that the firmware versions used in enclosure modules are compatible. Product
release notes describe the process for updating firmware. Contact your account manager for additional information.
64 Installation
shows power connection from a single-core PSU to a PDU using C19 connectors.
65). Once the power-on sequence succeeds, the storage system is ready to