Installation Procedures - for all MSA1000 Deployments
45MSA1000 Installation Guide
Connect the Power Cords
To protect your system from power supply or power source failure, the MSA1000
ships standard with a redundant power supply. By connecting the power supplies
on the MSA1000 to electrical outlets on separate power sources, you eliminate the
power supply and power source as single points of failure to your storage
sub-system.
The MSA1000 offers you three levels of protection against power failures, each of
which is dependant on the electrical source to which you connect your MSA1000:
■ Basic protection — plugging the redundant power supplies on the MSA1000
into the same power source.
■ Better protection — plugging one MSA1000 power supply into an
Uninterruptable Power Supply (UPS) to one power source (electrical breaker)
and plugging the other MSA1000 power supply into an electrical outlet on a
separate power source.
■ Best protection — plugging one MSA1000 power supply into an
Uninterruptable Power Supply (UPS) to one power source (electrical breaker)
and plugging the other MSA1000 power supply into another UPS on a
separate power source.
The basic level of protection only protects your MSA1000 from a failed power
supply on the MSA1000. If one of the power supply/fan modules fails, the
redundant module can keep the MSA1000 running. If both power supplies on the
MSA1000 are connected to the same power source, you are not protected from a
tripped breaker or outage of power at the source.
The best level of protection protects you from data loss when one of your power
sources fails, due to either a tripped breaker or local power outage. With your
MSA1000 connected to two UPS on separate power sources, your MSA1000 can
keep operating during a power outage. Depending on the cause and duration of the
power outage, you can use this time to properly shut down your storage
sub-system.