| 主权项 |
1. An information handling system, comprising:
a single storage initiator configured to initiate storage requests directed to a plurality of storage targets; a storage enclosure, comprising:
a first storage controller for enabling a storage initiator to access the plurality of storage targets and having an enclosure management subsystem including a first storage enclosure processor (SEP);a second storage controller for enabling the storage initiator to access the plurality of storage targets and having an enclosure management subsystem including a second SEP, wherein the first SEP is operable to verify the status of the second SEP; anda switching circuitry that includes a first I2C switch on the first storage controller and a second I2C switch on the second storage controller, wherein the switching circuitry is operable to connect the first storage controller to either the first SEP or the second SEP via an I2C bus;wherein based on the status of the second SEP, the second SEP is operable to detect a failure of the first SEP and, in response thereto, to control the switching circuitry to connect the second SEP to the first storage controller and disconnect the first SEP from the first storage controller;wherein the first SEP is operable to assert control signals to the first and second I2C switches and the second SEP is operable to assert control signals to the first and second I2C switches; and a single storage interconnection between the storage initiator and the storage enclosure, the switching circuitry configured to allow communications between the storage initiator and either of the first and second storage controller via the single storage interconnection between the storage initiator and the storage enclosure. |
