EMC Symmetrix enterprise storage array another Great product you should know about
Symmetrix began in 1990 as an ESCON and SCSI connected storage array, but rose to prominence with the introduction of Fibre Channel-based SANs.
* Symmetrix 4200
* Symmetrix 4400 (4 MB cache, RAID1)
* Symmetrix 4800
* Symmetrix 5500-3
* Symmetrix 3.0 (Open Symmetrix, SRDF, FWD SCSI Front End option, RAID-S)
* Symmetrix 4.0 (TimeFinder)
* Symmetrix 4.8 (FC Front end, 3830?)
* Symmetrix 5.0 (333 MHz PPC, e.g. 8730)
* Symmetrix 5.5 (400 MHz PPC, last SCSI back end, e.g. 8830)
* Symmetrix DMX (500 MHz PPC, FC back end, Direct Access to cache from all FE and BE directors)
* Symmetrix DMX-2 (1000 MHz PPC, RAID 5 capable)
* Symmetrix DMX-3 (1.3 GHz PPC, new denser drive packaging)
This is what EMC says about its DMX Series system
