Dell EMC PowerMax Series Instructions for use

Dell EMC PowerMax Family Best Practices
Guide for AC Power Connections
PowerMax 2000 and PowerMax 8000
Revision 6.0
April 2020

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2Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

5
7
Preface 9
Revision history..................................................................................................11
Best Practices Guide for AC Power Connections 13
Best practices overview for AC power connections...........................................14
Selecting the proper AC power connection procedure...................................... 15
Procedure A: Working with the customer's electrician onsite............................16
Procedure A, Task 1: Customer's electrician......................................... 17
Procedure A, Task 2: Dell EMC Customer Engineer ............................. 18
Procedure A, Task 3: Customer's electrician........................................22
Procedure B: Verify and connect...................................................................... 23
Procedure C: Obtain customer verification....................................................... 24
PDU labels........................................................................................................ 24
PDU label part number......................................................................... 24
Applying PDU labels............................................................................. 25
AC power specifications................................................................................... 26
Figures
Tables
CONTENTS
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 3

Contents
4Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Two independent customer-supplied PDUs....................................................................... 14
Circuit breakers ON — AC power within specification.......................................................17
Circuit breakers OFF — No AC power............................................................................... 17
Power zone connections....................................................................................................18
Line cord identification label.............................................................................................. 19
Connecting AC power, single-phase, PowerMax 2000, two dual-engine systems in a rack
......................................................................................................................................... 20
Connecting AC power, single-phase, PowerMax 8000......................................................20
Connecting AC power, three-phase, PowerMax 2000, two dual-engine systems in a rack
.......................................................................................................................................... 21
Connecting AC power, three-phase, PowerMax 8000.......................................................21
PDU label , single-phase and three-phase......................................................................... 25
1
2
3
4
5
6
7
8
9
10
FIGURES
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 5

Figures
6Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Typographical conventions used in this content................................................................ 10
Revision history..................................................................................................................11
Procedure options for AC power connection .................................................................... 15
Line cord identification label location, Dell EMC racks....................................................... 19
Line cord identification label location, third party racks..................................................... 19
PDU label part number...................................................................................................... 24
PDU label location, Dell EMC racks................................................................................... 24
PDU label location, third-party racks................................................................................ 24
Input power requirements - Single-phase, North American, International, Australian .......26
Input power requirements - Three-phase, North American, International, Australian ....... 26
1
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3
4
5
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7
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TABLES
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 7

Tables
8Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Preface
As part of an effort to improve its product lines, Dell EMC periodically releases revisions of its
software and hardware. Functions that are described in this document may not be supported by all
versions of the software or hardware. The product release notes provide the most up-to-date
information about product features.
Contact your Dell EMC representative if a product does not function properly or does not function
as described in this document.
Note: This document was accurate at publication time. New versions of this document might
be released on Dell EMC Online Support (https://www.dell.com/support/home). Check to
ensure that you are using the latest version of this document.
Purpose
This document describes best practices for connecting AC power to the following PowerMax
arrays:
lPowerMax 2000
lPowerMax 8000
Audience
This document is intended for customers who are installing a PowerMax array and must assure
that fault tolerant AC power is supplied to the arrays from independent, customer-supplied, power
distribution units (PDUs).
Related documentation
Dell EMC PowerMax Family Product Guide
Provides information on PowerMax 2000 and 8000 arrays with PowerMaxOS 5978.
Dell EMC PowerMax Family Site Planning Guide
Provides planning information regarding the purchase and installation of a PowerMax 2000,
8000 with PowerMaxOS.
PowerMaxOS 5978.144.144 Release Notes for Dell EMC PowerMax and All Flash
Describes new features and any limitations.
Dell EMC PowerMax Family Security Configuration Guide
Shows how to securely deploy PowerMax arrays running PowerMaxOS.
Special notice conventions used in this document
Dell EMC uses the following conventions for special notices:
Note: A NOTE indicates important information that helps you make better use of your product.
CAUTION A CAUTION indicates either potential damage to hardware or loss of data and tells
you how to avoid the problem.
WARNING A WARNING indicates a potential for property damage, personal injury, or death.
Typographical conventions
Dell EMC uses the following type style conventions in this document:
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 9

Table 1 Typographical conventions used in this content
Bold Used for names of interface elements
Examples: Names of windows, dialog boxes, buttons, fields, tab
names, key names, and menu paths (what the user selects or clicks)
Italic Used for full titles of publications referenced in text
Monospace Used for:
lSystem code
lSystem output, such as an error message or script
lPathnames, filenames, prompts, and syntax
lCommands and options
Monospace italic Used for variables
Monospace bold Used for user input
[ ] Square brackets enclose optional values.
| A vertical bar indicates alternate selections. The bar means “or”.
{ } Braces enclose content that the user must specify, such as x or y or
z.
... Ellipses indicate nonessential information that is omitted from the
example.
Where to get help
EMC support, product, and licensing information can be obtained as follows:
Product information
Dell EMC technical support, documentation, release notes, software updates, or information
about Dell EMC products can be obtained at https://www.dell.com/support/home
(registration required) or https://www.dellemc.com/en-us/documentation/vmax-all-flash-
family.htm.
Technical support
To open a service request through the Dell EMC Online Support (https://www.dell.com/
support/home) site, you must have a valid support agreement. Contact your Dell EMC sales
representative for details about obtaining a valid support agreement or to answer any
questions about your account.
Your comments
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documentation. Send your comments and feedback to: [email protected]
Preface
10 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Revision history
Table 2 Revision history
Revision Description and/or change Date
released
6.0 Modified figure titles for PowerMax 2000 March 2020
5.0 Clarified AC power specifications. September
2019
4.0 Added information on line cord power zone labels. June 2019
3.0 Updated PDU label for PowerMax. June 2018
2.0 Updated Procedure A, Task 2 for PowerMax 2000. May 2018
1.0 First release of the Dell EMC Best Practices Guide for AC Power
Connections for PowerMax 2000, 8000 with PowerMaxOS .
May 2018
Preface
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 11

Preface
12 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Best Practices Guide for AC Power Connections
lBest practices overview for AC power connections............................................................... 14
lSelecting the proper AC power connection procedure...........................................................15
lProcedure A: Working with the customer's electrician onsite................................................ 16
lProcedure B: Verify and connect...........................................................................................23
lProcedure C: Obtain customer verification............................................................................24
lPDU labels............................................................................................................................. 24
lAC power specifications........................................................................................................ 26
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 13

Best practices overview for AC power connections
To assure fault tolerant power, external AC power must be supplied from independent, customer-
supplied, power distribution units (PDUs) as shown in Figure 1 on page 14.
For systems operating from three phase AC power, two independent and isolated AC power
sources are recommended for the two individual power zones in each rack of the system. This
provides for the highest level of redundancy and system availability. If independent AC power is
not available, there is a higher risk of data unavailability should a power failure occur, including
individual phase loss occurring in both power zones.
Before connecting external AC power to storage bays, verify that the bays have been placed in
their final position as explained in the installation guide.
Figure 1 Two independent customer-supplied PDUs
Customer’s
PDU 1
Customer’s
PDU 2
Circuit
breakers
on (|)
Circuit
breakers
on (|)
Circuit breakers - Numbers
27
28
29
30
Circuit breakers - Numbers
...
8
9
10
11
...
Power feed 1 Power feed 2
Best Practices Guide for AC Power Connections
14 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Selecting the proper AC power connection procedure
The Dell EMC Customer Engineer must select the proper AC power connection procedure.
The following table summarizes the three possible scenarios to connect customer AC power to the
storage array. Select the procedure that matches the customer's situation.
Table 3 Procedure options for AC power connection
Situation on site Procedure
The customer’s electrician is available at the
installation site.
Procedure A: Working with the customer's
electrician onsite on page 16. This procedure
assures fault tolerant power in the storage
array.
The customer’s electrician is NOT available at
the installation site, but you have access to
customer-supplied, labeled, power cables
(beneath a raised floor or overhead).
Procedure B: Verify and connect on page 23
The customer’s electrician is NOT available at
the installation site, customer-supplied PDU
source cables are already plugged into the
PDU and you have no access to the customer-
supplied power cables.
Procedure C: Obtain customer verification on
page 24
Best Practices Guide for AC Power Connections
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 15

Procedure A: Working with the customer's electrician onsite
Use this procedure if the customer’s electrician is available at the installation site.
This procedure requires three basic tasks that alternate between the customer's electrician, the
Dell EMC CE and back to the customer's electrician.
lTask 1: Customer's electrician
lTask 2: Dell EMC Customer Engineer (CE)
lTask 3: Customer's electrician
Best Practices Guide for AC Power Connections
16 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Procedure A, Task 1: Customer's electrician
About this task
NOTICE This task is performed by the customer's electrician.
Procedure
1. Verify that the customer-supplied AC source voltage output on each customer-supplied
PDU is within the AC power specification shown in AC power specifications on page 26.
Measure the voltage output of each power cable as shown in Figure 2 on page 17.
2. Turn OFF all the relevant circuit breakers in customer-supplied PDU 1 and customer-
supplied PDU 2.
3. Verify that the customer-supplied power cables connected to PDU 1 and PDU 2 have no
power as shown in Figure 3 on page 17.
Figure 2 Circuit breakers ON — AC power within specification
Customer’s
PDU 1
Customer’s
PDU 2
Circuit
breakers
on (|)
Circuit
breakers
on (|)
Circuit breakers - Numbers
27
28
29
30
Circuit breakers - Numbers
...
8
9
10
11
...
Labels on
customer
power lines
Power feed 1 Power feed 2
PDU 1
CB 28
PDU 2
CB 9
Voltmeter
TYPE PM89 CLASS 25 01
0
100
240
300
V
Voltmeter
TYPE PM89 CLASS 25 01
0
100
240
300
V
Figure 3 Circuit breakers OFF — No AC power
Customer’s
PDU 1
Customer’s
PDU 2
Circuit
breaker
off (0)
Circuit
breaker
off (0)
Circuit breakers - Numbers
27
28
29
30
Circuit breakers - Numbers
...
8
9
10
11
...
PDU 2
CB 9
PDU 1
CB 28
Labels on
customer
power lines
Voltmeter
TYPE PM89 CLASS 25 01
0
100
240
300
V
Voltmeter
TYPE PM89 CLASS 25 01
0
100
240
300
V
Best Practices Guide for AC Power Connections
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 17

Procedure A, Task 2: Dell EMC Customer Engineer
Before connecting power to the PowerMax system, make sure that the power for both zone A and
zone B are turned OFF. This task is performed by the Dell EMC Customer Engineer.
NOTICE Do not connect storage bay power zone A and power zone B to the same customer-
supplied PDU. The customer will lose power redundancy and risk Data Unavailability (DU) if
the PDU fails or is turned off during a maintenance procedure.
Figure 4 Power zone connections
:
t
natropm
I
laun
a
mnoi
t
curtsniotrefeR
Zone B Zone A
(Rear View)
SYSTEM
Customer’s Power
Source 1
Circuit
Breakers
(CBs)
Zone B Zone A
(Rear View)
SYSTEM
Customer’s Power
Source 1
Circuit
Breakers
(CBs)
Customer’s Power
Source 2
Circuit
Breakers
(CBs)
:
t
natropm
I
laun
a
mnoi
t
curtsniotrefeR
Zone B Zone A
(Rear View)
SYSTEM
Customer’s Power
Source 1
Circuit
Breakers
(CBs)
Zone B Zone A
(Rear View)
SYSTEM
Customer’s Power
Source 1
Circuit
Breakers
(CBs)
Customer’s Power
Source 2
Circuit
Breakers
(CBs)
046-001-749_01
Best Practices Guide for AC Power Connections
18 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000

Attaching line cord identification labels
Procedure
1. Select the appropriate line cord identification label from the install kit.
Table 4 Line cord identification label location, Dell EMC racks
Label part number Input power Location
046-007-880 Single phase OPEN ME FIRST KIT, PN
106-887-026
046-008-425 Three phase
Table 5 Line cord identification label location, third party racks
Label part numbers Input power Location
046-007-880 Single phase PowerMax 2000:
HERC ENG 1 PBRICK 3RD PTY
INSTALL KIT, PN 106-887-303
PowerMax 8000:
ENGINE 1 3RD PTY PBRICK ZEUS,
PN106-887-268
ENGINE 5 3RD PTY PBRICK ZEUS,
PN 106-887-270
046-008-425 Three phase
2. Locate the line cords that connect the customer power cables to the storage array PDUs.
3. Affix the line cord identification labels on the AC input line cords for power zone A and
power zone B. Place the labels close to the connectors that connect the line cords to the
customer-supplied power cables.
Figure 5 Line cord identification label
Best Practices Guide for AC Power Connections
Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000 19

Connecting power
Procedure
1. Confirm that the customer-supplied power cables are labeled and that each label contains
the relevant customer-supplied PDU and circuit breaker numbers. If power cables are not
equipped with labels, alert the customer.
2. Compare the numbers on the customer-supplied power cables for each storage bay to verify
that power zone A and power zone B are powered by a different customer-supplied PDU.
3. Do one of the following to connect power zone A and power zone B in each bay:
lFor single-phase power: Connect customer-supplied PDU power cables to the storage
bay by connecting to the bay's AC input line cords for power zone A and power zone B
as shown below.
Figure 6 Connecting AC power, single-phase, PowerMax 2000, two dual-engine systems in
a rack
Customer’s PDU 1
Zone B
AC input
line cord B
Mating connector or
customer-supplied cable
Customer’s PDU 2
Zone A
AC input
line cord A
Mating connector or
customer-supplied cable
Cable connectors are shown
as they exit the bottom rear
of the bay.
Rear view
System bay
P1 P3 P4 P1 P3 P4
Lower System:
P1, P3, Jumper J1<>P2
Upper System:
P4, P6, Jumper J4<>P5
P3 and P6 are used
depending on the
configuration
P6 P6
Figure 7 Connecting AC power, single-phase, PowerMax 8000
Customer’s PDU 1
Zone B
AC input
line cord B
Mating connector or
customer-supplied cable
Customer’s PDU 2
Zone A
AC input
line cord A
Mating connector or
customer-supplied cable
Cable connectors are shown
as they exit the bottom rear
of the bay.
Rear view
System bay
P1 P3 P5 P1 P3 P5
P3 and P5 used
depending on
configuration
Best Practices Guide for AC Power Connections
20 Dell EMC PowerMax Family Best Practices Guide for AC Power Connections PowerMax 2000 and PowerMax 8000