Texas Memory Systems RamSan-500 manual RAID Failure

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Figure 33 – Web Monitor RAID Rebuild Status

If a Flash module fails and it is replaced with a new module, the RAID must be rebuilt. The RAID is usable while rebuilding, but performance is limited.

WARNING

IT IS RECOMMENDED THAT THE RAMSAN REMAIN UNUSED WHILE ANY RAID IS

BEING REBUILT IF HIGH PERFORMANCE IS CRITICAL. REBUILDING RAID ARRAYS

GREATLY IMPACTS SYSTEM THROUGHPUT.

You can use the Web monitor to examine the status of the rebuilding process. Please view Figure 33 above for a screen shot of RAID rebuild status. A RAID rebuild should take about 30 minutes to complete.

5.3.2 RAID Failure

It is unlikely but possible for multiple Flash modules to fail in a single RAID. If it happens, the system will turn the RAID offline.

The front panel display will show a system failure. The system should not be exercised while in a failed state.

System Status: FAIL

Errors: Flash Array

Offline

If a RAID is put offline, all Flash modules in that array will have their front LED illuminated red.

RamSan-500 User’s Manual

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Contents RamSan-500 User’s Manual Revision History Table of Contents Introduction PowerOverview System ComponentsSystem Management ReliabilityUnpacking Reviewing your shipmentSystem Overview System InspectionRamSan-500 Back Rack mountingInstalling a Host Bus Adaptor in the Host System ConnectionsFibre Channel Interface Host Bus Adapter Connecting the Fibre Channel PortsPCI Bus 4 CPUFibre Channel Port Locations Connecting to a NetworkConnecting Power to the System Power SwitchesAC Voltage Indicator Light Getting Started Turning on the SystemSystem Initialization Front Panel Display Basics Manual Shutdown Controlling System Power with the Front Panel DisplayFlash Modules Identify Module Module Network Configuration with the Front Panel Display Manual RestartAutomatic Shutdown Dhcp Ethernet IP address 192.000.000.000 Additional System Management Options Connecting using a Terminal ProgramConnecting using Snmp Connecting using TelnetConnecting using the Web Monitor Web Monitor BasicsAcquiring the System IP Address Accessing the Web MonitorWeb Monitor Information Date and time setup with the Web monitor Web Monitor Network Management Network Configuration with the Web MonitorDefault 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 Web Monitor Cache Configuration Configuring the RamSan-500 CacheViewing the Logs with the Web Monitor RamSan-500 User’s Manual Web Monitor System Report Web Monitor Patch Selection Upgrading the System with the Web MonitorIf 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 OFF Flash Module FailureWeb Monitor Flash Module Failure Detection Web Monitor RAID Degraded Detection RAID Failure Fans RamSan-500 User’s Manual Batteries