IBM BladeCenter S SAS RAID Controller Module, Installation And User Manual

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Environmental considerations
Follow the laws and guidelines for battery and other hazardous waste disposal in
your area.
Quick facts about Battery Backup Units
Battery backup units provide backup for SAS RAID controller modules cache.
Battery Backup Units are installed in the battery backup unit bays located in the
media tray when you install SAS RAID controller modules. The Battery Backup
Unit in battery backup bay 1 provides backup support for the SAS RAID controller
module in I/O module bay 3; the Battery Backup Unit in battery backup bay 2
provides backup support for the SAS RAID controller module in I/O module bay
4.
Note: Both Battery Backup Units are required when you install two SAS RAID
controller modules.
Controls and indicators
The Battery Backup Units provides the following indicators:
Power Lit (green). Power is being supplied to the Battery Backup Units.
Charging
Lit (green). The Battery Backup Units is being charged.
Off.
Fault Lit (amber). The Battery Backup Units has a failure. If the Fault LED is lit,
replace the Battery Backup Units.
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IBM SAS RAID Controller Module: Installation and User's Guide IBM BladeCenter S SAS RAID Controller Module