3. InstallationUser Guide Page 3-73.2.2 Powering OffIf you need to power off the entire system, such as in the cases of switch or RAID systemfirmware updates, adding a RAID system or client computer, power off in the reverse order ofPowering On. Before turning off the A08S3-PS Storage System, turn off the host server first.During RAID initiation or disk drive rebuilding, you can turn off the host server and leave theA08S3-PS powered on.Figure 22: power off sequence