Troubleshooting & Diagnostics
Troubleshooting Procedures
Two Power Modules/Two Faults Troubleshooting Procedure
CAUTION! There should be no bus activity when these steps are performed. The storage system should be offline.
If the storage system contains two power modules and two fan modules and two power supply faults occur, follow these steps:
1.Cycle storage system power.
2.After
∙If both fan module status lights do not turn green before they turn off, replace both fan modules.
∙If at least one fan status light turns green after
DDS Tape Module Troubleshooting Procedure
If a DDS tape module failure occurs, see Table 9.
Disk Module Troubleshooting Procedure
If a disk module failure occurs, check the following:
1.A solid green status light at any time other than during a
2.Termination problems can prevent successful completion of a drive module
3.Solve the problem using the appropriate procedure. If the disk module needs to be replaced, see Figure 29. DF Disk Module Replacement Decision Flowchart”.
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Troubleshooting