System information

Contents
ix
4.1.1 Embedded CLI ................................................................................................................. 4-1
4.1.2 Conventions Overview .....................................................................................................4-6
4.2 Basic RAID Management ......................................................................................................... 4-7
4.2.1 Hard disks ........................................................................................................................ 4-7
4.2.2 JBOD disks ...................................................................................................................... 4-7
4.2.3 Disk groups ......................................................................................................................4-8
4.2.4 Spare and rebuild ............................................................................................................ 4-9
4.2.5 Logical disks ..................................................................................................................4-10
4.2.6 RAID algorithms options ................................................................................................4-10
4.2.7 Volumes .........................................................................................................................4-11
4.2.8 Cache ............................................................................................................................ 4-12
4.3 RAID Maintenance Utilities .................................................................................................... 4-13
4.3.1 RAID attributes reconfiguration utilities .......................................................................... 4-13
4.3.2 Data integrity maintenance utilities ................................................................................4-14
4.3.3 Task priority control ....................................................................................................... 4-15
4.3.4 Task schedule management .......................................................................................... 4-15
4.3.5 On-going task monitoring ...............................................................................................4-16
4.3.6 Array and volume roaming ............................................................................................. 4-16
4.3.7 Array recovery utilities ................................................................................................... 4-17
4.4 Storage Presentation .............................................................................................................4-17
4.4.1 Hosts .............................................................................................................................. 4-17
4.4.2 Host groups ................................................................................................................... 4-18
4.4.3 Storage groups ..............................................................................................................4-19
4.4.4 Presentation planning .................................................................................................... 4-20
4.4.5 Selective storage presentation ...................................................................................... 4-20
4.4.6 Simple storage presentation ..........................................................................................4-21
4.4.7 Symmetric-LUN storage presentation ............................................................................ 4-21
4.5 Hardware Configurations and Utilities .................................................................................... 4-22
4.5.1 Generic hard disk ........................................................................................................... 4-22
4.5.2 SAS ports ...................................................................................................................... 4-24
4.5.3 SCSI ports ..................................................................................................................... 4-24
4.5.4 FC ports ......................................................................................................................... 4-25
4.5.5 Management network interface ..................................................................................... 4-26
4.5.6 Local terminal ports ....................................................................................................... 4-27
4.5.7 Enclosure .......................................................................................................................4-28
4.5.8 Uninterruptible power supply ......................................................................................... 4-28
4.6 Performance management .................................................................................................... 4-29
4.6.1 Hard disks ...................................................................................................................... 4-29
4.6.2 Cache ............................................................................................................................ 4-29
4.6.3 LUN ................................................................................................................................ 4-29
4.6.4 Storage ports .................................................................................................................4-30
4.7 Redundant Controller Configurations ..................................................................................... 4-31
4.7.1 Mirrored write cache control .......................................................................................... 4-31
4.7.2 Change preferred controller ........................................................................................... 4-31
4.7.3 Path failover alert delay ................................................................................................. 4-31
4.8 Event Management ................................................................................................................4-31
4.8.1 NVRAM event logs ........................................................................................................ 4-31
4.8.2 Event notification ........................................................................................................... 4-32
4.8.3 Event handling ............................................................................................................... 4-33
4.9 System Management ............................................................................................................. 4-34