Dell EMC PowerProtect DD6400 System Expansion Manuallines page 42

Table 10. Troubleshooting scenarios (continued)
Issue
No FC connectivity
ES40 shelves not detected
NVRAM not charged
License file is missing or incomplete
42 Installation Troubleshooting
Remedy
● Verify the FC infrastructure is known to be functional
● Verify all FC cables are the correct type and are known to
be functional.
● Verify FC HBA and all FC cables are fully seated.
● Verify all SFPs are fully seated and are known to be
functional.
Verify the SAS HBA and all SAS cables are fully seated.
The NVRAM module takes 2-3 hours to reach 80% charge. If
the NVRAM is not charged to 80% or more, the system will
generate errors and performance is degraded.
● Contact your Dell EMC sales representative.
● Open a license case on the Online Support portal.