HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure User Manual page 282

Figure 6-11 LUN Configuration Screen
Key Action
N or n Moves to the next screen (there are additional screens if there are more LUNs
than will fit onto one screen).
P or p Moves to the previous screen.
R or r Refreshes the screen contents to reflect the current state of the disk array.
6-34 Viewing Maintenance Information