Compaq ML570 Configuring Arrays - Page 4

Opening the CLI in Console mode 54 Opening the CLI in Command mode 54 CLI syntax...54 Typical procedures ...59 Using ACU scripting ...75 Capturing a configuration...75 Using an Input script ...76 Creating an ACU script file ...76 Script file options...78 XML support...90 ACU scripting warning messages ...93 ACU scripting error messages ...94 HP Array Diagnostics and SmartSSD Wear Gauge Utility 99 About the utility ...99 Reported information ...99 Installing the utility ...101 Setting up ADU Remote Service Mode ...102 Launching the utility in CLI mode ...102 Launching the utility in GUI mode ...102 Diagnostic report procedures ...103 Viewing the diagnostic report...103 Generating the diagnostic report 105 Identifying and viewing diagnostic report files 106 SmartSSD Wear Gauge report procedures 106 Viewing the SmartSSD Wear Gauge report 106 Generating the SmartSSD Wear Gauge report 107 Identifying and viewing SmartSSD Wear Gauge report files 108 Drive arrays and fault-tolerance methods 109 Drive arrays...109 Effects of a drive failure...111 Fault-tolerance methods ...112 RAID 0-No fault tolerance ...112 RAID 1 and RAID 1+0 (RAID 10 113 RAID 1 (ADM) and RAID 10 (ADM 114 RAID 5-distributed data guarding 116 RAID 6 (ADG)-Advanced Data Guarding 116 RAID 50 ...118 RAID 60 ...119 Comparing the hardware-based RAID methods 119 Selecting a RAID method ...120 Alternative fault-tolerance methods 120 Diagnosing array problems...122 Diagnostic tools ...122 Troubleshooting resources ...122 Acronyms and abbreviations...124 Documentation feedback ...126 Index...127 Contents 4