
Chapter 3: Using the Web Interface
169
•
Bulk Configuration or Firmware Upgrade via DHCP/TFTP
in the PDU With RackLink Advanced User
www.middleatlantic.com/resources/power-downloads.aspx
•
Firmware Upgrade via USB
in the PDU With RackLink Advanced User Manual at
www.middleatlantic.com/resources/power-downloads.aspx
A Note about Firmware Upgrade Time
The PDU firmware upgrade time varies from unit to unit, depending on various external and internal factors.
External factors include, but are not limited to: network throughput, firmware file size, and speed at which the firmware is
retrieved from the storage location. Internal factors include: the necessity of upgrading the firmware on the microcontroller
and the number of microcontrollers that require upgrade (which depends on the number of outlets). The microcontroller is
upgraded only when required. Therefore, the length of firmware upgrade time ranges from approximately 3 minutes
(without any microcontroller updated) to almost 7 minutes (with all microcontrollers for 48 outlets updated).
Take the above factors into account when estimating the PDU's firmware upgrade time.
The time indicated in this note is for PDU web interface-based upgrades. Upgrades through other management systems
may take additional time beyond the control of the PDU itself. This note does not address the upgrades using other
management systems.
Full Disaster Recovery
If the firmware upgrade fails, causing the PDU to stop working, you can recover it by using a special utility rather than
returning the device.
Contact Technical Support for the recovery utility, which works in Windows XP/Vista/7/10 and Linux. In addition, an
appropriate PDU firmware file is required in the recovery procedure.
Note: All PDUs can be recovered via either a USB or serial RS-232 connection.
Viewing Firmware Update History
The firmware upgrade history is permanently stored on the PDU. It remains available even though you perform a device
reboot or any firmware update.
To view the firmware update history:
1.
Choose Maintenance > Firmware History.
Each firmware update event consists of:
•
Update date and time
•
Previous firmware version