User`s manual
2-10
About Your New SmartRAID V Controller
BB4050 Battery Module Features
The BB4050 Battery Module adds battery backup for the data cache on a
SmartRAID V PM3755U2B controller using DPT DM4050 or DM4060
memory modules.
The following features of the BB4050 provide additional data security for
high-reliability servers:
• Nickel Metal Hydride battery pack provides a backup time of 72 hours
(using a single 16MB memory module). Actual backup time depends
on the amount of cache used and is calculated by the controller
firmware.
• On board intelligence for power crossover and charge management.
• The battery status and backup capacity can be monitored using
Storage Manager.
• Fast recharge (five hours).
• Battery life of 300 charge/discharge cycles.
• A user initiated discharge/recharge cycle is available to prevent loss of
battery capacity through voltage depression by performing periodic
deep-discharging and recharging of the battery.
• Operating temperature range of 10ºC to 40ºC.
!
CAUTION
!
Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the
manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.