Cause and Action
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- Cause: The controller is unable to communicate with an enclosure. There are several reasons why communication may be lost. For example, there may be a bad or loose cable. An unusual amount of I/O may also interrupt communication with the enclosure. In addition, communication loss may be caused by software, hardware, or firmware problems, bad or failed power supplies, and enclosure shutdown. When viewed in the alert log, the description for this event displays several variables. These variables are: controller and enclosure names, type of communication problem, return code, and SCSI status.
- Action: Check for problems with the cables. See the online help for more information about checking the cables. You should also check to see if the enclosure has degraded or failed components. To do so, select the enclosure object in the tree view and click the
Health subtab. The
Health
subtab displays the status of the enclosure components. Verify that the controller has supported driver and firmware versions that are installed and that the EMMs are each running the same version of the supported firmware.
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Related Alert Information
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- Clear Alert Number: 2162
- Related Alert Number: None
- Local Response Agent (LRA) Number: 2090
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