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EMC Fibre Channel Disk-Array Processor Enclosure (DPE) Hardware Reference
About the Rackmount Disk-Array Processor Enclosure
DPE Components
The DPE components include:
• A sheet-metal enclosure with a midplane, front door, and SP fan
pack cover
• One or two SPs
• One or two link control cards (LCCs)
• Up to ten disk modules
• One or two power supplies
• One drive fan pack
• One SP fan pack
Any unoccupied slot (SP, LCC, disk module, or power supply) has a
filler module to maintain air flow and compliance with
electromagnetic interference (EMI) standards.
The SPs, LCCs, disk modules, power supplies, fan packs, and filler
modules are customer-replaceable units (CRUs), which you can add
or replace without tools while the DPE is powered up.
The high-availability features for a DPE include:
• Second SP and LCC
• Second power supply
• Standby power supply (SPS) (See “Related Documentation” on
page xi.)
A second SP (with required second LCC) provides continued access
to the DPE and any connected DAEs if the first SP or LCC fails. The
second SP can improve performance and connects easily to a second
server.
The disk drives are FC-AL compliant and support dual-port FC-AL
interconnects through the two LCCs and their cabling.
Enclosure
The enclosure is a sheet-metal housing with a front panel, a
midplane, front door, and slots for the SPs, LCCs, disk modules,
power supplies, and fan packs.
The following figures show the DPE components. Details on each
component follow the figures. If the enclosure provides slots for two