One DS4800 and fourteen EXP810 storage expansion enclosures
If you are cabling one DS4800 Storage Subsystem to fourteen EXP810 storage
expansion enclosures, Figure 53 on page 75 shows the recommended cabling
scheme.
1
Drive Channel 3
Drive Channel 4
Drive Channel 1
Drive Channel 2
DS4800 Storage
Subsystem
DS4000 Storage
Expansion Enclosure 1
DS4000 Storage
Expansion Enclosure 2
DS4000 Storage
Expansion Enclosure 3
DS4000 Storage
Expansion Enclosure 4
DS4000 Storage
Expansion Enclosure 8
DS4000 Storage
Expansion Enclosure 7
DS4000 Storage
Expansion Enclosure 6
DS4000 Storage
Expansion Enclosure 5
ds48055
12
3
4
1
2
34
Controller A
Controller B
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Left ESM (A) Right ESM (B)
Figure 52. One DS4800 and eight storage expansion enclosures — Recommended cabling
74 IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide