Chapter 2 PFR500/E Installation Information
34
PFR 500/E Instruction Manual
16 October 2001
PFR500/E power-down
To power-down the PFR 500/E correctly:
1. Stop any I/O activity to the PFR 500/E.
2. Shut off power to the ac distribution strips that supply the PFR500/E.
The power in the distribution strips may be controlled by a circuit breaker located
inside the cabinet (if the cabinet has such breakers) or may be controlled by a
circuit breaker located externally to the cabinet.
To turn on power, refer to
“PFR500/E power-up and initialization” on page 33
.
Battery Backup recharge
Every PFR 500/E RAID controller includes a backup battery so that if electrical power
is lost, data stored in cache memory will be saved.
Data store cache is not used in Profile storage systems, so the Battery Backup module is
not used, even though it ships as part of the LBB module.
