Product manual

VessRAID 1000s Series Product Manual
298
Power Supply
VessRAID 1800s Series
VessRAID 1800s Series has two power supplies. The advantage
of two power supplies is that, should one fail, the other will
continue powering the subsystem. The power supplies are hot-
swappable.
VessRAID 1700s Series
VessRAID 1700s Series has only one power supply and it is not
replaceable onsite. If you need to replace the power supply,
contact Technical Support and make arrangements to return the
subsystem to Promise for service. See page 305.
Fan Failure
As noted above, if a power supply fan fails, you must replace the
power supply. Without the fan to cool it, the power supply will
overheat and eventually fail anyway.
See page 224 for instructions on replacing a power supply.
Battery
VessRAID uses a battery as backup power for the cache. Should
a power failure occur, the battery enables the cache to hold data
up to 72 hours. The battery recharges during normal VessRAID
operation.
First, try reconditioning the battery. See page 94 or page 143.
If the battery does not respond, installing a replacement battery
will correct a marginal or failed condition.
See page 228 for instructions on replacing the battery.