HP Configuring Arrays Reference Manual page 4

Using ACU scripting ................................................................................................................................... 76
Capturing a configuration ................................................................................................................. 76
Using an Input script ......................................................................................................................... 76
Creating an ACU script file ............................................................................................................... 77
Script file options ............................................................................................................................. 78
XML support .................................................................................................................................... 92
ACU scripting warning messages ...................................................................................................... 95
ACU scripting error messages ........................................................................................................... 95
HP Array Diagnostics and SmartSSD Wear Gauge Utility .............................................................. 100
About the utility ........................................................................................................................................ 100
Reported information ................................................................................................................................ 100
Installing the utility .................................................................................................................................... 102
Setting up ADU Remote Service Mode ........................................................................................................ 103
Launching the utility in CLI mode ................................................................................................................ 103
Launching the utility in GUI mode ............................................................................................................... 103
Diagnostic report procedures ..................................................................................................................... 104
Viewing the diagnostic report .......................................................................................................... 104
Generating the diagnostic report ..................................................................................................... 106
Identifying and viewing diagnostic report files ................................................................................... 107
SmartSSD Wear Gauge report procedures ................................................................................................. 107
Viewing the SmartSSD Wear Gauge report ...................................................................................... 107
Generating the SmartSSD Wear Gauge report .................................................................................. 108
Identifying and viewing SmartSSD Wear Gauge report files ............................................................... 109
Drive arrays and fault-tolerance methods ..................................................................................... 110
Drive arrays ............................................................................................................................................. 110
Effects of a drive failure ............................................................................................................................ 112
Fault-tolerance methods ............................................................................................................................. 113
RAID 0-No fault tolerance ............................................................................................................. 113
RAID 1 and RAID 1+0 (RAID 10) ..................................................................................................... 114
RAID 1 (ADM) and RAID 10 (ADM) ................................................................................................. 115
RAID 5-distributed data guarding .................................................................................................. 117
RAID 6 (ADG)-Advanced Data Guarding ....................................................................................... 117
RAID 50 ........................................................................................................................................ 119
RAID 60 ........................................................................................................................................ 120
Comparing the hardware-based RAID methods ................................................................................. 120
Selecting a RAID method................................................................................................................. 121
Alternative fault-tolerance methods ................................................................................................... 121
Diagnosing array problems ........................................................................................................ 123
Diagnostic tools ....................................................................................................................................... 123
Troubleshooting resources ......................................................................................................................... 123
Acronyms and abbreviations ...................................................................................................... 125
Documentation feedback ........................................................................................................... 127
Index ....................................................................................................................................... 128
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