Power System Behavior; To Power-On The Library - Oracle StorageTek SL150 Manual

Illustration Legend:
1 - Tape Drive With Fibre Channel Cable
2 - Expansion Module Cable
3 - Ethernet Cable
4 - Power Supply Cord
5 - Tape Drive With SAS Cable
Connect the power cord to each installed power supply.
2.
Continue with
3.

Power System Behavior

The behavior of the SL150 library when AC power is applied to the system power
supplies depends on how the tape library was powered down from the previous
powered-up state. The system BIOS is set to recall the last power state from AC loss
(such as a utility power outage, removal of the AC power cord, or powering off a PDU
or power strip).
When AC power is restored, the system turns on for about 4 seconds while the system
BIOS determines the library power state when AC was lost.
If the tape library was powered up when AC was lost, it remains in the powered-on
■
state and the boot sequence starts.
If the tape library was powered down when AC was lost, it returns to the
■
powered-down state about 4 seconds after AC power restoration.
A controlled powered-down is performed from the SL150 remote management interface
or physical library power button (the touch screen GUI is also involved). If power is
lost after a controlled power-down, the BIOS resets to power on for about 4 seconds
when AC power is restored. The tape library returns to the powered-off state until the
power button is pressed to apply power to the tape library.
A forced power-down of the tape library is performed by pressing and holding the
power button until the library powers down (approximately 10 seconds). If power is
lost after a forced power-down, the library does not perform the BIOS power on for 4
seconds after AC power restoration. The tape library remains in the powered-down
state until the power button is pressed to apply power to the tape library.

To Power-on the Library

Make sure the robot is not locked.
1.
Make sure the floor is installed in the bottom library module.
2.
Press the power switch on the base module to initiate a restart, if necessary.
3.
See
occurs during startup and includes movement of the robot to determine the
number of modules and tape drives in the library. If library initialization fails, the
tape drive ports are not enabled.
Power System
Do not manually remove a cartridge magazine while the
Caution:
library is performing the restart. Perform a manual magazine
removal only when the library is operational and offline.
Appendix A, "Startup" for a description of the process. Library initialization
Behavior.
Removal and Replacement 3-35
Power System Behavior