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A multi-initiator SCSI bus or Fibre Channel interconnect has more than one cluster system connected to it. RAID controllers with a single host port and parallel SCSI disks must use a multi-initiator bus or interconnect to connect the two host bus adapters to the storage enclosure. This configuration provides no host isolation. Therefore, only development environments should use multi-initiator buses.
A single-initiator SCSI bus or Fibre Channel interconnect has only one cluster system connected to it, and provides host isolation and better performance than a multi-initiator bus. Single-initiator buses or interconnects ensure that each cluster system is protected from disruptions due to the workload, initialization, or repair of the other cluster system. |
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