RAID0 Concept..........................................................................................................................................17
RAID1 Concept..........................................................................................................................................17
RAID1+0 Concept......................................................................................................................................18
RAID5 Concept..........................................................................................................................................18
RAID5+0 Concept......................................................................................................................................19
RAID6 Concept..........................................................................................................................................20
RAID6-FR Concept.....................................................................................................................................21
Example of a RAID Group .........................................................................................................................24
Volume Concept .......................................................................................................................................25
Hot Spares................................................................................................................................................27
Data Block Guard......................................................................................................................................29
Disk Drive Patrol.......................................................................................................................................30
Redundant Copy Function ........................................................................................................................31
Rebuild.....................................................................................................................................................32
Fast Recovery ...........................................................................................................................................33
Copyback..................................................................................................................................................34
Copybackless ............................................................................................................................................35
Protection (Shield) ...................................................................................................................................36
Deduplication Overview ...........................................................................................................................39
Compression Overview .............................................................................................................................39
TPV/FTV Capacity Optimization .................................................................................................................51
FTV Configuration .....................................................................................................................................53
FTRP Balancing.........................................................................................................................................56
RAID Migration.........................................................................................................................................60
LUN Concatenation ..................................................................................................................................62
Wide Striping............................................................................................................................................64
Firmware Data Encryption ........................................................................................................................67
Account Management ..............................................................................................................................71
Audit Log..................................................................................................................................................75
Host Affinity .............................................................................................................................................76
Event Notification ....................................................................................................................................82
Device Time Synchronization....................................................................................................................84
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
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List of Figures
P3AG-1822-09ENZ0