EMC Storage Product Knowledge Sharing

From its inception, Symmetrix was designed with the flexibility to incorporate the latest technology in disk drives, memory and other components. This effort has enabled the storage platform to evolve to meet the ever-increasing data demands of enterprises. and has provided customers with unparalleled investment protection. The first-generation Symmetrix 4400 Integrated Cached Disk Array (ICDA), with a total capacity of 24 gigabytes, was introduced in 1990. The seventh-generation system, the Symmetrix DMX-3, was introduced in July 2005 and features a Direct Matrix Architecture® and maximum capacity of one petabyte (1,024 terabytes). The Symmetrix platform has continued to improve and evolve to meet the needs of data-intensive organizations worldwide and remains the most successful intelligent storage platform in history.

With more than 68,000 systems shipped from its introduction in 1990 through the end of June, 2005 and with more than 400 EMC patents covering its technology, Symmetrix remains the high-end storage market leader and continues to set the standard for mission-critical high-end storage innovation.

1990 – Symmetrix 4200 – ICDA (Integrated Cached Disk Array) Technology, Total Capacity 24 GB

1991 – Symmetrix 4200 – 4Mb DRAM, 5.25 HDAs, Mirroring RAID 1

1992 – Symmetrix 4400 - - Dynamic Sparing, RMP Call Home

1993 – Symmetrix 4800 – 16MB DRAM, 1 GB Global Memory,Non-disruptive microcode, Hypervolume Extension.

1994 – Symmetrix 5500-3 – SRDF

1995 – Symmetrix 3.0 Open Symmetrix- FWD SCSI- attach, 3.5’’ HDAs, RAID Protection, SRDF Host Component, Symmetrix Manager

1996 – Symmetrix ESP – Mix CKD/FBA

1997 – Symmetrix 4.0 – TimeFinder, DataReach, InfoMover, Celerra, FDRSOS, Fibre Channel, PowerPath, UltraSCSI, DMSP

1998 – Symmetrix 4.8 – FC-AL/FC-SW, Symmetrix Optimizer

1999 – Symmetrix 5.0 – 333 MHz PPC, 181 GB disks, QoS Controls

2000- Symmetrix 5.5 – 2 GB fibre Channel, 400 MHz PPC

2000-2001 – Symmetrix DMX – Direct Matrix, 500 MHz PPC, 2 GB FC, Back-End Parity RAID

2001 – 2002 – Symmetrix DMX – 2 GB FICON, Gigabit Ethernet SRDF, iSCSI, SRDF/A, TimeFinder/Snap

2003- Symmetrix DMX-2 – 1 Ghz PPC, RAID 5 Data Protection, 32 GB Memory Directors

2003-2004- Symmetrix DMX-2- SRDF Mode Change, Concurrent SRDF, SRDF/Star, TimeFinder/Clone, Open Replicator

2005 – Symmetrix DMX-3 – 8 Processors/Directors, 1.3 GHz PPC, Low Cost FC Disks, Incremental Scalable, Upto 2400 disks, Open Migrator/LM

2005-2006 – Symmetrix DMX-3 – Dynamic Cache Partitioning, Symmetrix Priority Controls, Virtual LUN Technology, Symmetrix Service Credential, Tamper Proof Audit Logs, Secure Data Eraser, RAID 6 Protections.

2007- 2008 Symmetrix DMX-4 – 4GB/s Point to point Backend, FC & SATA Intermix, RSA enVision Intergration, Flash Drives, Virtual Provisioning Cascaded SRDF.