IBM manual DS4700 Express Storage Subsystem

DS4000 Storage Subsystem

1

	4	5	4		5
ESM A						ESM B
EXP100
							Out
	4	5		4		5
ESM A						ESM B
EXP100

3

DS4000 Storage Subsystem

1

ESM A				6		7
		EXP810							ESM B
							7	6
ESM A			6		7
	EXP810								ESM B
							7	6

ESM A 6 7 4 5 4 5

ESM A ESM B

ESM B

	EXP810	7	6
					EXP100
	6	7			2
ESM A					4	5	4	5
				ESM B	ESM A			ESM B
	EXP810		6
					EXP100
								exp100810a

Figure 76. Acceptable EXP710, EXP810 and EXP100 intermix configuration in a DS4700 Express Storage Subsystem environment

Table 27. Description of Figure 76

Number	Description
1	DS4700 Express Storage Subsystem
2	EXP100
3	EXP810
4	IN port
5	OUT port
6	Port 1B
7	Port 1A

Figure 77 on page 96 shows an unacceptable EXP710, EXP810, and EXP100 intermix configuration in a DS4700 Express Storage Subsystem environment. The cabling is unacceptable because storage subsystem controller is cabled to the IN port on the left ESM of the first EXP100.

Chapter 3. Cabling the storage subsystem 95