IBM DS4500 Portable Media Storage User Manual


 
First storage
expansion enclosure
Third storage
expansion enclosure
Right ESMLeft ESM
Out
Out
In
d3nu4043d
Right ESMLeft ESM
Out
Out
In
Second storage
expansion enclosure
Right ESMLeft ESM
EXP500/100/7x0
In
In
Out
Out
In
Right ESMLeft ESM
Out
Out
In
Fourth (last) storage
expansion enclosure
In
In
EXP500/100/7x0
EXP500/100/7x0
EXP500/100/7x0
LoopA Loop B
Storage
expansion
enclosure
group 1
Storage
expansion
enclosure
group 2
Storage Subsytem
First storage
expansion enclosure
Third storage
expansion enclosure
Right ESMLeft ESM
Out
Out
In
Right ESMLeft ESM
Out
Out
In
Second storage
expansion enclosure
Right ESMLeft ESM
EXP500/100/7x0
In
In
Out
Out
In
Right ESMLeft ESM
Out
Out
In
Fourth (last) storage
expansion enclosure
In
In
EXP500/100/7x0
EXP500/100/7x0
EXP500/100/7x0
Loop C Loop D
Figure 63. Connecting a second redundant EXP500, EXP100, EXP700, or EXP710 storage
expansion enclosure group (loops C and D)
Chapter 3. Cabling the storage subsystem 85