HP StoreEver ESL G3 Tape Libraries - Manual (Page 256)

If the library does not automatically come back up after a power outage, cycle library power. Cycling
library power involves shutting down the library, powering it off, and then powering it on. For more
information, see
Shutting Down/Rebooting the Library , Powering Off the Library , and Powering On
the Library . The blue LED on the power supply will be on and not blinking.
Frequently Asked Questions 256