EMC Symmetrix DMX-3 - Page 6

EMC Symmetrix DMX-3 Product Guide
6
Contents
Hypervolume extension feature............................................ 127
Disk drive cylinders................................................................ 127
Logical volume mapping ....................................................... 128
Metavolumes............................................................................ 128
Mainframe systems hypervolumes ............................................. 132
Hypervolume extension options........................................... 132
Split-volume capability........................................................... 132
Extended cylinder addressing option................................... 133
Determining cylinders for hypervolume user data............ 134
Tiered Storage Optimization......................................................... 136
Symmetrix Priority Controls.................................................. 136
Dynamic Cache Partitioning.................................................. 137
Optimizing Symmetrix system performance ............................. 139
Performance guidelines for open system devices............... 139
Virtual LUN technology ......................................................... 140
Virtual LUN management...................................................... 140
Dynamic Host Addressing............................................................ 145
Virtual Provisioning ....................................................................... 146
Virtual Provisioning description........................................... 146
Benefits of Virtual Provisioning ............................................ 147
Virtual Provisioning features................................................. 147
Multiport volume access for open systems environments ....... 149
Software options overview............................................................ 150
EMC ControlCenter family of products............................... 150
Symmetrix Optimizer ............................................................. 153
TimeFinder family of products.............................................. 154
Solutions Enabler..................................................................... 155
Symmetrix Management Console......................................... 155
Chapter 5 Data Integrity, Availability, and Protection
Overview.......................................................................................... 158
Symmetrix reliability and availability features................... 158
Symmetrix data integrity protection features ..................... 158
Data protection options .......................................................... 159
Reliability and availability features ............................................. 162
Reliable components............................................................... 162
Global memory director data integrity ................................ 162
Redundant global memory .................................................... 162
Channel director redundancy................................................ 163
Internal control data path redundancy ................................ 164
Fibre Channel back-end redundancy ................................... 164
Fibre Channel arbitrated loop design................................... 165
Dual-initiator feature ............................................................. 168