HP Proliant DL580 - Removing the SAS-SATA Backplane

56 HP ProLiant DL580 Generation 3 Server Maintenance and Service Guide
The installation is complete.
Removing the SAS-SATA backplane
1. Power down the server ("Powering down the server" on page 18).
2. Remove the access panel ("Removing the access panel" on page 19
).
3. Remove all hard drives ("Removing a hot-plug SAS hard drive" on page 51
)
and hard drive blanks ("Removing a hard drive blank" on page 49
).
4. Remove the screws securing the SAS hard drive cage.
5. Slowly pull the SAS hard drive cage out of the server until there is enough
room to reach behind the SAS hard drive cage.
6. Disconnect all cables from the back of the SAS hard drive cage.