Table 20. Troubleshooting (continued)
Problem
indicator
Component
Possible cause
Possible solutions
Drive is not
visible in the
Storage Manager
software
Several
components
Drive failure
Replace the failed drive or drives.
SAS cable failed
Replace the SAS cable.
controller failure
Replace controller. See “Replacing
components” on page 77 for more
information.
Midplane failure
Replace the DCS3860. Contact
your IBM technical-support
representative.
A drive has an
interface problem
with the ESM or
controller.
Replace the drive. See “Replacing
components” on page 77 for more
information.
Incorrect firmware
version
Ensure that the DCS3860 has the
correct firmware version.
In a dual-controller
storage system, one
controller has failed,
and in the drive
channel that
originates from the
other (functioning)
controller, an ESM
has failed.
Replace the failed controller and
ESM. See “Replacing
components” on page 77 for more
information.
Storage
enclosure is not
detected
Storage system
Storage enclosure is
not supported
Verify that the storage enclosure
is supported by the DCS3860
storage system.
SAS cable failed
Replace the SAS cable.
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