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About Switched Shared Storage and SANs (Storage Area Networks)
1-13
About Fibre Channel FC4700 Storage Systems and Storage Networks
Storage-System Hardware
A Fibre Channel storage system is based on a disk-array processor
enclosure (DPE).
A DPE is a 10-slot enclosure with hardware RAID features provided
by one or two storage processors (SPs). For high availability, two SPs
are required. In addition to its own disks, each DPE can support up to
nine 10-slot Disk Array Enclosures (DAEs) for a total of 100 disks per
storage system.
Figure1-11 Storage System with DPE and Three DAEs
What Next? For information about RAID types and RAID tradeoffs, continue to
the next chapter.
For information on the MirrorView™ or SnapView™ software
options, go to Chapter 3 or 4.
To plan LUNs and file systems, skip to Chapter 5. For details on the
storage-system hardware, skip to Chapter 6.
EMC1741
DPE
DAE
DAE
DAE
Standby power
supply (SPS)