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Serial Attached SCSI technologies and architectures, 4th edition

ManualsBrandsHP ManualsSoftwareHP Smart Array Advanced Pack including 1yr 24x7 Technical Support and Updates Single Server License
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Figure 8: Dual-domain SAS to JBOD storage network
Dual-domain SAS for cascaded JBODs
This dual-domain SAS architecture provides redundant pathways for cascaded JBODs (Figure 9).
Using two IO modules for each enclosure and SAS dual-port drives provides redundancy throughout
the storage network and eliminates any single point of failure.
Figure 9: Dual-domain SAS for cascaded JBODs
JBOD
JBOD
SAS drive
SAS drive
SAS drive
SAS drive
SAS drive
SAS drive
Server
Server
Controller
Controller
IO Module
IO Module
Expander
Expander
IO Module
IO Module
Expander
Expander
IO Module
IO Module
Expander
Expander
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