HP STOREEVER LTO 4 User Manual page 25

Watch the boot screen carefully after installation. If there are any error or unexpected messages
go back and check the SAS cabling carefully.
Have you installed the SAS cable correctly?
Have you reconnected all devices securely?
If the problem is unresolved, refer to "Troubleshooting" (page 41) for further guidelines.
Reboot the server 25