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ActiveScale™ X100 Site Requirements Guide
To prevent the potentially negative effects of excessive inrush current on the system, Quantum Corporation
recommends selecting a PDU that can stagger the startup sequence of the system components.
Important: If a PDU that cannot stagger the startup sequence is used, ensure that
the PDU is rated to support the inrush current created by a simultaneous startup.
Table 2-4. Recommended startup order
Recommended
startup order
1
System Interconnects
2
System Nodes
3
Management Interconnect
4
Storage Enclosure Basics
5
Storage Nodes
For an example of the exact programming sequence used by Quantum Corporation power supplies, refer to
the cabling section of the ActiveScale X100 Support Guide.
Safety
The PDU used shall comply with the safety standards of the country that rack is installed in.
Electromagnetic Compatibility
The PDU used shall comply with the Electromagnetic Compatibility (EMC) agency of the country that the
rack is installed in.
Environmental
Operating temperature: 5 – 55° C
2.3.5 Example configurations
The following sections provide examples of PDU configurations.
2.3.5.1 3-Phase Delta, 208V, 24A, NA, Japan Input Power Configuration
Number of PDUs required by system including redundancy 2
Input Configuration
Nominal Input Voltage (line-to-line)
Input Voltage Operating Range
Nominal Frequency
Input Current/Power
Input Current, Steady State Available
Input Current, Peak Available
Component
3-5 seconds for each device
3-5 seconds for each device
3-5 seconds for each device
1-2 minutes for each device
Note: The longer delay for Storage Nodes allows all the
disks in the Storage Enclosure Basics to spin up
completely.
3-5 seconds for each device
Delay
3-Phase DELTA
208VAC
200VAC-220VAC
60Hz
24A, NA derated
30A
19
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