2-12
Setting Up and Starting a CX700 System
Figure 2-7
Connecting dc Power Supplies to the CX700 and DAE2 SPS Ports
2. Connect the dc power cables from power supply A (PS A) and
PS B to independent sources of dc power.
3. Connect DAE2s and other devices to the power strips in your
cabinet/rack. For high availability, connect dual power supplies
in any component to separate power circuits (opposite strips in
the cabinet/rack).
Making Back-End Connections
CAUTION
!
Before making any new back-end connections to or between DAEs,
verify your enclosure addresses as follows:
•
Make sure the EA switch on each DAE2 indicates the correct
enclosure address.
• Power up any DAE2Ps
before cabling to the PRI or EXP
connectors
. If the enclosure address LEDs indicate an
incorrect or invalid EA, reset the address to the correct value.
The CX700 supports four redundant Fibre Channel back-end loops
on each SP for a total of eight independent loops. Loop 0 from SP A
and loop 0 from SP B are paired, and share access to the same
dual-port disk drives. Loops starting at the BE 1, BE 2, and BE 3
connectors are also paired and share disks in the same way. Together,
loops A0/B0, A1/B1, A2/B2, and A3/B3 act as four redundant loops,
also called
buses
.
EMC2944
S
P A
S
P B
dc Power
Su
pply B
dc Power
Su
pply A
Summary of Contents for CLARiiON CX700
Page 4: ...CX700 Hardware Reference iv ...
Page 8: ...CX700 Hardware Reference viii Contents ...
Page 18: ...xviii CX700 Hardware Reference Warnings and Cautions ...
Page 56: ...2 26 CX700 Hardware Reference Setting Up and Starting a CX700 System ...
Page 74: ...3 18 CX700 Hardware Reference Servicing a CX700 SPE ...
Page 96: ...A 18 CX700 Hardware Reference Technical Specifications and Operating Limits ...
Page 104: ...B 8 CX700 Hardware Reference Customer Support ...