Texas Memory Systems RamSan-500 manual Flash Module Failure, Off

Page 42

OFF	No Power, zone not present

Because each Flash zone is independent of the other, the status of each zone may differ.

WARNING

REMOVING A FLASH MODULE WHILE IT IS POWERED ON MAY CAUSE IRREVERSIBLE

DAMAGE TO THE MODULE. ONLY REMOVE A FLASH MODULE IF BOTH STATUS INDICATOR

LEDS ARE OFF.

5.3.1 Flash Module Failure

In addition to the error correct features built into the Flash module, the Flash modules are protected from a complete Flash module failure by a RAID configuration. If only a single module fails in a RAID, all data in the array will be preserved. You should replace the bad Flash module right away. If the system detects a bad Flash module, it will note the bad module by illuminating the red LED on the front of the module.

The front panel display will register a warning stating that one or more modules have been degraded. A degraded module functions correctly, but a degraded array cannot tolerate another Flash module failure without data loss.

System Status: WARN

Errors: Flash Module

Degraded

You can also get information about the state of the Flash modules from the Web monitor.

RamSan-500 User’s Manual

42 of 48

Image 42

Contents RamSan-500 User’s Manual Revision History Table of Contents Overview PowerIntroduction System ComponentsReliability System ManagementSystem Overview Reviewing your shipmentUnpacking System InspectionRack mounting RamSan-500 BackInstalling a Host Bus Adaptor in the Host System ConnectionsFibre Channel Interface PCI Bus Connecting the Fibre Channel PortsHost Bus Adapter 4 CPUConnecting to a Network Fibre Channel Port LocationsConnecting Power to the System Power SwitchesAC Voltage Indicator Light Getting Started Turning on the SystemSystem Initialization Front Panel Display Basics Controlling System Power with the Front Panel Display Manual ShutdownFlash Modules Identify Module Module Network Configuration with the Front Panel Display Manual RestartAutomatic Shutdown Dhcp Ethernet IP address 192.000.000.000 Connecting using a Terminal Program Additional System Management OptionsConnecting using the Web Monitor Connecting using TelnetConnecting using Snmp Web Monitor BasicsAccessing the Web Monitor Acquiring the System IP AddressWeb Monitor Information Date and time setup with the Web monitor Network Configuration with the Web Monitor Web Monitor Network ManagementDefault Accounts Changing PasswordsManaging security with the Web Monitor RamSan-500 User’s Manual Basic LUN Creation Adding UsersCreating a LUN RamSan-500 User’s Manual Adding an Access Policy to a LUN RamSan-500 User’s Manual Configuring the RamSan-500 Cache Web Monitor Cache ConfigurationViewing the Logs with the Web Monitor RamSan-500 User’s Manual Web Monitor System Report Upgrading the System with the Web Monitor Web Monitor Patch SelectionIf the System has a Problem Contacting Texas Memory SystemsClearing the System Event Log RamSan-500 User’s Manual System Maintenance Power SuppliesContacting Texas Memory Systems Replace Failed Power Modules AS Soon AS Possible Flash Modules Flash Module Failure OFFWeb Monitor Flash Module Failure Detection Web Monitor RAID Degraded Detection RAID Failure Fans RamSan-500 User’s Manual Batteries