Hitachi VSP User and Reference Guide
A–4
Specifications
Table A-3 VSP Electrical specifications. three phase current
Table A-4 Power consumption, single phase current (HDDs)
Item Unit Specification
Power requirements AC, 3 Phase delta 208 V +5/-15%, 50/60 Hz
Power consumption
.
NOTE: The power
consumption of the
system is the same
whether it uses single
phase or three phase
power. The difference is
that each branch of the
three phase input power
draws less current than
the single phase
conductors.
Drive chassis
(240 HDD)
4.3KVA (2.5" SAS)
5.7KVA (3.5” SATA)
Maximum 41.4 KVA
Controller chassis power
supply
Input Current 7.18 A
Steady Current 3.59 A
Leakage Current 0.28 mA
Inrush current 1st (0-p) 20 A
2nd (0-p)
1st (0-p) Time
(-25%: 80 ms
Drive chassis
power supply
Input Current 6.52 A
Steady Current 3.26A
Leakage Current 0.28 mA
Inrush current 1st (0-p) 20 A
2nd (0-p)
1st (0-p) Time
(-25%: 80 ms
Configuration
1
Idle
2
Max Power
Consumption
3, 5
Current per rack Current per rack
R00 (module 0 controller
4
17.3 19.6
R10 (module 1 controller
4
18.2 17.9
R01 (module 0 drive 1)4 14.8 18.3
R11 (module 1 drive 1)4 16.1 19.6
R02 (module 0 drive 2)4 17.2 17.1
R12 (module 1 drive 2)4 14.4 18.6
Total Power 98 111.1
Notes:
1. The numbers in this table were provided by measuring system power consumption in a controlled
environment. Depending on the air temperature and actual voltage where the system is installed,
current draw can vary as much as + or - 10%. To calculate power draw for a specific system, use the
Power and Weight calculator at. http://www.hds.com/go/weight-and-power-calculator/ Contact
technical support if you need assistance using this tool.
2. Idle condition - system is powered on but not being accessed.
2. Max power consumption - all disks are in write mode.
3. R00 and R01 are controller racks with one controller chassis and two drive chassis.
4. R01, R02, R11, and R12 are drive racks with three drive chassis each.
5. Configured with the maximum of 2048 146 GB SAS drives.
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