Meridian Data 16i manual Normal Operational Status, UPS Messages

Page 89

Appendix C: Uninterruptible Power Supply

Step 5. Trigger the firmware to allow the subsystem to detect the UPS. To see how to do this please, refer to the Generic Operation Manual that came with the subsystem.

NOTE:

A UPS can be connected to the subsystem after the subsystem has been powered on, but you will have to trigger the firmware to allow the subsystem to detect the UPS.

If you are daisy chaining systems together, be sure to make all the cable connections and then power on the SecurStor 16i subsystem that is not directly connected to host computer before powering on the first subsystem.

C.6 UPS Status Monitoring

If a UPS has been correctly connected to the subsystem, the status of the UPS will be constantly monitored by the controller through the COM2 (audio jack) serial port. The status of the UPS will determine the controller’s write policy, and messages that appear on the LCD panel and other monitoring devices will keep you informed of the UPS status.

C.6.1 Normal Operational Status

If the UPS has been connected to main power and the UPS battery power level is above 50%, then no status messages will appear and the default “Write Back” write policy will be implemented by the controller.

C.6.2 UPS Messages

The following messages may appear on the LCD screen:

Message 1: UPS connection is absent

This message appears when COM2 has not been connected to the UPS.

Message 2: UPS connection detected

This message appears when the COM2 ports on the subsystem have been connected to the UPS.

Message 3: Warning: UPS AC Power-Loss detected

This message appears when the UPS battery power level remains above 50% but its connection to the AC power supply has been disrupted in some way. The write policy changes from write back to write through.

Message 4: Warning: UPS Battery Low 50%. Please shut down to protect data loss

This message appears when the UPS battery power level has dipped below 50% of its capacity and the UPS has either been disconnected from the AC power supply or the AC power supply has been disrupted. The write policy will be changed from the

C-3

Image 89
Contents Installation and Hardware Reference Manual Copyright Contact InformationFCC Class B Radio Frequency Interference Statement Electric Shock WarningCCC ESD Precautions Safety PrecautionsPrecautions and Instructions Conventions About This ManualWho should read this manual? Lists Software and Firmware UpdatesSteps Table of Contents Subsystem Monitoring Appendix a Technical Specifications This page intentionally left blank Page Product Introduction Product OverviewEnclosure Chassis Chassis Overview Front Panel Overview Physical DimensionsRear Panel Overview Hard Drive NumberingBackplane Board Subsystem ComponentsRAID Controller Module Drive TraysController Module Interfaces 2-port version Controller Module Interfaces5 BBU Power Supply UnitsDimm Module PSU Module Cooling Modules1 I2C bus LED IndicatorsHot-swap Capabilities Firmware FW Audible AlarmsHot-swappable Components Normalized Airflow ComponentsThis page intentionally left blank Page Introduction Chapter Hardware InstallationSecurStor 16i Installation and Hardware Reference Manual General Installation Procedure Unpacking the Subsystem Installation OverviewInstallation Procedure Flowchart BBU Module Installation Overview BBU InstallationBBU Warnings and Precautions Installation ProcedureLoosening the BBU Retention Screws Hard Drive Installation Prerequisites Hard Drive InstallationFront View of an Individual Drive Tray Drive Tray Key-lock Rotation Rack/Cabinet InstallationPage Subsystem Monitoring Overview Chapter Subsystem MonitoringDrive Tray LEDs Status-indicating LEDsBrief Overview of the LEDs Name Color Status Controller Module LEDsAmber Restore Nvram Defaults a Push ButtonEthernet Port LEDs How to use the button?PSU LEDs BBU Module LEDColor Status Cooling Module LEDsDefault Threshold Values Audible AlarmFailed Devices I2C MonitoringPage Cabling Connection OverviewNetwork Topologies Host Connection TopologiesPoints of Failure Sample Topology Direct-Attached, Dual-path ConnectionSample Topology Multiple Servers Each with Dual Connections ISCSI Topology and Host LUN Mapping Sample Topology Connection and Host LUN Mapping Power OnCheck List Power On ProcedurePower On Enclosure Power Switches Power On Status CheckStop I/O access to the system Power Off ProcedureOverview MaintenanceGeneral Notes on Component Replacement Overview Replacing Controller Module ComponentsRemoving the Controller Module Subsystem Maintenance and UpgradingLoosening the Retention Screws from the BBU Module Removing the Controller Module from Chassis Replacing the Controller ModuleSelecting the Memory Modules Memory Module Installation OverviewReplacing or Upgrading Memory Modules Removing a Dimm Module Dimm Module InstallationFault Conditions Replacing a Faulty BBUReplacing a Faulty BBU Remove the Retention Screws from BBU Faceplate Install the BBU Module Printed Text on PSU Handle Replacing a Failed PSU ModulePSU Parts Identification Replacing the PSU Module10 Removing the PSU Retention Screw Cooling Module Maintenance Replacing a Cooling Module Remove the cooling fan assembly by the following steps13 Removing a Cooling Module Replacing a Failed Hard Drive Hard Drive Maintenance Overview15 Front View of an Individual Drive Tray Replacing a Hard Drive16 Opening the Drive Tray Front Flap 18 Loosening the Hard Drive Screws Page Appendix a Certifications Architecture ConfigurationDrive Tray Specifications RAID Management SecurStor 16i Installation and Hardware Reference Manual COM1 Serial Port Cable Appendix B PinoutsCOM2 Serial Port Cable to UPS Null ModemEthernet Port Pinouts STP LAN Cable Connect the PSU Module Power Cords Appendix C Uninterruptible Power SupplySet the Baud Rate Connect COM2 SecurStor 16i Installation and Hardware Reference ManualUPS Messages Normal Operational StatusUPS Message Summary Message 5 Warning UPS Battery Low 50%This page is intentionally left blank