Fujitsu ETERNUS AF S3 Series Design Manual page 6

List of Figures
Figure 1 Configuration Example of Each ETERNUS AF.............................................................................................15
Figure 2 RAID6-FR Concept.....................................................................................................................................23
Figure 3 Example of a RAID Group .........................................................................................................................25
Figure 4 Volume Concept .......................................................................................................................................27
Figure 5 Hot Spare .................................................................................................................................................29
Figure 6 Hot Spare Selection Criteria (for the ETERNUS AF650 S3) .........................................................................30
Figure 7 Data Block Guard......................................................................................................................................32
Figure 8 Disk Drive Patrol.......................................................................................................................................33
Figure 9 Redundant Copy Function ........................................................................................................................34
Figure 10 Rebuild.....................................................................................................................................................35
Figure 11 Fast Recovery ...........................................................................................................................................36
Figure 12 Copyback..................................................................................................................................................37
Figure 13 Copybackless ............................................................................................................................................38
Figure 14 Protection (Shield) ...................................................................................................................................39
Figure 15 Reverse Cabling (ETERNUS AF650 S3) ......................................................................................................41
Figure 16 Deduplication/Compression Overview ......................................................................................................42
Figure 17 Deduplication Overview ...........................................................................................................................43
Figure 18 Compression Overview .............................................................................................................................43
Figure 19 Details of the Deduplication/Compression Function .................................................................................47
Figure 20 Storage Capacity Virtualization.................................................................................................................50
Figure 21 TPV Balancing (When Allocating Disproportionate TPV Physical Capacity Evenly) ....................................53
Figure 22 TPV Balancing (When Distributing Host Accesses Evenly after TPP Expansion) ........................................53
Figure 23 TPV/FTV Capacity Optimization .................................................................................................................55
Figure 24 FTV Configuration .....................................................................................................................................57
Figure 25 FTRP Balancing.........................................................................................................................................60
Figure 26 RAID Migration (When Data Is Migrated to a High Capacity Drive)...........................................................63
Figure 27 RAID Migration (When a Volume Is Moved to a Different RAID Level) ......................................................63
Figure 28 RAID Migration.........................................................................................................................................64
Figure 29 Logical Device Expansion (When Expanding the RAID Group Capacity)....................................................65
Figure 30 Logical Device Expansion (When Changing the RAID Level).....................................................................65
Figure 31 LUN Concatenation ..................................................................................................................................66
Figure 32 LUN Concatenation (Volume Concatenation) ...........................................................................................67
Figure 33 Wide Striping............................................................................................................................................68
Figure 34 Data Encryption with Self Encrypting Drives (SED) ...................................................................................70
Figure 35 Firmware Data Encryption ........................................................................................................................71
Figure 36 Key Management Server Linkage .............................................................................................................73
Figure 37 Account Management ..............................................................................................................................75
Figure 38 Audit Log..................................................................................................................................................79
Figure 39 Host Affinity .............................................................................................................................................80
Figure 40 Associating Host Groups, CA Port Groups, and LUN Groups.......................................................................81
Figure 41 Power Consumption Visualization ............................................................................................................82
Figure 42 Event Notification ....................................................................................................................................86
Figure 43 Device Time Synchronization....................................................................................................................88
6 Design Guide