Restarting the library, Manually shut down the library. see, Shutting down, powering off, and – Dell PowerVault ML6000 User Manual
Page 162: Completely removing power, Shutting, Down, powering off, and completely removing power

Chapter 9 Running Your Library
Shutting Down, Powering Off, and Completely Removing Power
Dell PowerVault ML6000 User’s Guide
162
Shutting Down, Powering Off, and Completely Removing
Power
The
Shutdown
command shuts down the library’s operating system and
firmware. When performing a shutdown, the library finishes the current
command and lowers the robot to the floor of the library.
Before performing a shutdown, make sure the connected host
applications are not sending commands to the library.
To power off the library:
Perform the shutdown sequence and then press
the power button on the front of the 5U Library Control Module.
To completely remove power:
Perform the shutdown sequence and power
off the library. Then turn off the power switch on each power supply,
located at the rear of the library. Finally, disconnect the power supply
cables from their electrical source.
The paths to open the appropriate screens are as follows:
• From the Web client, select
Operations > System Shutdown
.
• From the operator panel, select
Operations > Shutdown
.
Restarting the Library
The
Restart
command shuts down and restarts the library’s operating
system and firmware. When performing a restart, the library finishes the
current command, then shuts down the library and restarts it. During the
restart, the library brings all tape drives and partitions online and
performs an inventory of cartridges, tape drives, and slots.
Before performing a restart, make sure the connected host applications
are not sending commands to the library.
Caution:
Always perform a shutdown before powering off the
library or completely removing power from the library.