Ds5020 drive ports – IBM System Storage Subsystem DS5020 User Manual
Page 106
Perform the following steps to create the cabling scheme shown in Figure 50:
1A
1B
DS5020
Port 2, drive channel 1
1A 1B
1A
1B
1A
1B
Port 1, drive channel 1
Port 1, drive channel 2
Port 2, drive channel 2
1A 1B
1B
1A
1B
1A 1B
1A
1B
1B
1A
1B
1B
1A
1A
1A
EXP520 one
EXP520 two
EXP520 three
EXP520 four
EXP520 five
EXP520 six
Figure 50. One DS5020 and a maximum of six EXP520 storage expansion enclosures
behind a pair of DS5020 drive ports
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IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide