Installation guide

xii DAC960PG Installation Guide
Hot Replacement of Disks (“Hot Swap”) ............................................... 3
IBBU .....................................................................................................3
Intelligent Battery Backup Unit ............................................................. 3
Logical Drive States .............................................................................. 3
Logical Drives ....................................................................................... 4
Mirroring ...............................................................................................4
Pack ...................................................................................................... 4
Parity .................................................................................................... 4
RAID ..................................................................................................... 5
Replacement Table .............................................................................. 6
Rotated XOR Redundancy ................................................................... 6
SCSI Drive ............................................................................................6
SCSI Drive States ................................................................................. 6
Segment Size ....................................................................................... 7
Session ................................................................................................. 8
Standard Disk Drive .............................................................................. 8
Standby Replacement of Disks (“Hot Spare”) ....................................... 8
Stripe Order .......................................................................................... 9
Stripe Size ............................................................................................ 9
Stripe Width ........................................................................................ 10
Striping ............................................................................................... 10
System Drives .................................................................................... 10
Target ID ............................................................................................. 10
Write Back Cache ............................................................................... 11
Write Through Cache ......................................................................... 11