student guide.pdf
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student guide.pdf
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Copyright © 2005 EMC Corporation. Do not Copy - All Rights Reserved.<br />
Symmetrix DMX2000/3000 Functional Diagram<br />
Front-end Channel<br />
Directors<br />
Back-end Disk<br />
Directors<br />
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Disks<br />
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Port Bypass Cards<br />
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© 2005 EMC Corporation. All rights reserved. Symmetrix Foundations - 10<br />
The DMX Series models’ functional block diagram displays hosts connected to the back adapters<br />
of the front-end directors; they send their data to the Symmetrix DMX Series system’s cache. The<br />
new Point-to-Point matrix connection between cache and back-end disk directors allows for highperformance<br />
destaging to the drives, or retrieval of data from the disks into cache. Besides the<br />
Disk Adapters and drives, the back-end has a new control card, called a Port Bypass Card (PBC).<br />
Symmetrix Foundations - 10
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