Reference Guide

5.12
3PAR InServ E-Class/F-Class Storage Server Physical Planning Manual
Table 5-3 lists total current limitations for storage server systems depending on voltage. The
total current drawn by all components installed in a single cabinet must not exceed these
totals.
5.4 Power Quality
The quality of the input power is critical to the performance and reliability of 3PAR InServ
Storage Servers. Variations in the input power can cause a power failure or malfunction. Many
of the causes of transient signals and noise on commercial power lines are difficult to locate or
are beyond the customer’s control. To reduce the impact of the irregularities, some form of
power conditioning may be needed. Please consult your electrician for assistance.
Table 5-3. Total Current Limitations Per System
Current at
200 VAC (A)
Current at
220 VAC (A)
Current at
240 VAC (A)
Maximum current
per
1M cabinet
(2 PDUs)
14.4 13.1 12.0
Maximum current
per
2M cabinet
(4 PDUs)
23.4 21.3 19.5
NOTE: The total system peak inrush current on system startup can vary depending
on the system configuration but is mitigated through a staggered (sequenced)
drive spin-up and by distributing the load equally unless there is a failure on a
given line.