Performance features
33
Introducing the Symmetrix DMX-3
Performance features
Symmetrix DMX-3 offers improved performance over conventional
Storage Control Unit (SCU) and Direct Access Storage Device
(DASD) designs. Table 2 on page 33 identifies many of the Symmetrix
DMX-3 and Enginuity supported features that enhance performance
and increase throughput.
Table 2 Performance features roadmap (1 of 2)
Feature Document sources
Direct Matrix (DMX) Architecture with up to 128 direct
nonblocking data paths and up to 128 GB/s aggregate internal
bandwidth in the DMX-3
• “Symmetrix DMX-3” on page 26 and “Symmetrix DMX-3
architecture” on page 53
• “Symmetrix DMX-3 and component scaling attributes” on
page 50
• “DMX-3 point-to-point message matrix” on page 55
Symmetrix DMX-3 global memory directors for optimized
performance
• “Global memory performance features” on page 117
• “Memory striping” on page 118
• “Global memory directors” on page 83
• “Global memory director configuration” on page 85
One hundred percent global memory fast write capabilities • “Write operations” on page 110
• “Disk mirroring (RAID 1) concepts” on page 191
PermaCache option • “PermaCache option” on page 121
2 Gb/s Fibre Channel Drive Infrastructure • “Fibre Channel disk subsystem” on page 62
• Multiple scalable channel directors, disk directors, and global
memory directors
a
• ESCON channel speeds up to 17 MB/s
• FICON channel speeds up to 4 Gb/s
• Fibre Channel speeds up to 4 Gb/s
• iSCSI channel speeds up to 1 Gb/s
• Gigabit Ethernet (GigE) remote director speeds up to 1 Gb/s
• GigE IPv4/v6 (IPsec capable) channel speeds up to 1 Gb/s
• FICON Cascading and Open Systems Intermix Configurations
• “Channel, disk, and global memory directors” on page 75
• “ESCON channel directors” on page 79
• “FICON channel director” on page 80
• “Fibre Channel directors (front-end)” on page 77
• “iSCSI channel directors” on page 82
• “Gigabit Ethernet (GigE) remote directors” on page 81
• “GigE IPv4/v6 (IPsec capable) director” on page 82
• “Symmetrix FICON configurations” on page 94
Logical volume capacities • “Symmetrix DMX-3 logical volume capacities” on page 66
Hypervolume Extension option • “Open systems hypervolumes” on page 127
• “Mainframe systems hypervolumes” on page 132
Tiered storage optimization • “Symmetrix Priority Controls” on page 136
• “Dynamic Cache Partitioning” on page 137
Virtual LUNs • “Virtual LUN technology” on page 140
ControlCenter • “EMC ControlCenter family of products” on page 150
TimeFinder • “TimeFinder family of products” on page 154
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