Dell EMC PowerStore
Network Planning Guide
1.0
May 2020
Rev. A01
Notes, cautions, and warnings
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.
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© 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
Additional Resources...................................................................................................................... 5
1 PowerStore models and network hardware overview....................................................................... 6
Using this guide......................................................................................................................................................................6
PowerStore deployment models..........................................................................................................................................7
PowerStore appliance nodes................................................................................................................................................7
Top-of-Rack (ToR) switches...............................................................................................................................................8
Dell EMC PowerSwitch S4148F-ON............................................................................................................................. 8
Dell EMC PowerSwitch S4148T-ON............................................................................................................................. 9
Dell PowerSwitch S5248F-ON...................................................................................................................................... 9
PowerStore logical topology...............................................................................................................................................10
Top-of-Rack (ToR) switch connectivity options and requirements ............................................................................. 11
Switch to switch (L2) connectivity options................................................................................................................12
Node to Top-of-Rack (ToR) switch connectivity requirements..............................................................................14
Part I: PowerStore T model: Network Planning................................................................................ 15
2 PowerStore T model out-of-band management switch.............................................................. 16
PowerStore T model out-of-band management switch connectivity.....................................................................16
3 PowerStore T model: Network configuration requirements........................................................ 18
PowerStore T model appliance networks................................................................................................................... 18
PowerStore T model network VLAN requirements.................................................................................................. 20
IP address requirements for initial configuration....................................................................................................... 20
4 Prepare to configure the networks.......................................................................................... 22
Preparing to configure PowerStore............................................................................................................................ 22
Part II: PowerStore X model: Network Planning...............................................................................23
5 PowerStore X model: Network configuration requirements....................................................... 24
PowerStore X model networks....................................................................................................................................24
PowerStore X model networks VLAN options.......................................................................................................... 25
IP addresses for network configuration .................................................................................................................... 26
6 Prepare to configure the networks.......................................................................................... 27
Preparing to configure PowerStore............................................................................................................................ 27
A Discovering PowerStore Appliances.............................................................................................28
Discover your system..........................................................................................................................................................28
Discovery with a direct connection.............................................................................................................................28
Discovery with remote connection............................................................................................................................. 29
Contents
Contents 3
B PowerStore Network Setup Preparation Worksheets.................................................................... 30
PowerStore T model: Network Setup Preparation Worksheet (blank)....................................................................... 30
PowerStore T model: example of completed Network Setup Preparation Worksheet............................................. 32
PowerStore X model Network Setup Preparation Worksheet (blank)........................................................................ 34
PowerStore X model: example of completed Network Setup Preparation Worksheet.............................................36
C PowerStore Initial Configuration Worksheets............................................................................... 39
PowerStore Initial Configuration Worksheet (blank)......................................................................................................39
PowerStore T model: example of a completed Initial Configuration Worksheet......................................................... 41
PowerStore X model: example of a completed Initial Configuration Worksheet........................................................ 44
4 Contents
Additional Resources
As part of an improvement effort, revisions of the software and hardware are periodically released. Some functions that are described in
this document are not supported by all versions of the software or hardware currently in use. The product release notes provide the most
up-to-date information about product features. Contact your technical support professional if a product does not function properly or
does not function as described in this document.
Where to get help
Support, product, and licensing information can be obtained as follows:
Product information
For product and feature documentation or release notes, go to the PowerStore Documentation page at www.dell.com/
powerstoredocs.
Troubleshooting
For information about products, software updates, licensing, and service, go to www.dell.com/support and locate the appropriate
product support page.
Technical support
For technical support and service requests, go to www.dell.com/support and locate the Service Requests page. To open a service
request, you must have a valid support agreement. Contact your Sales Representative for details about obtaining a valid support
agreement or to answer any questions about your account.
Preface
Additional Resources 5
PowerStore models and network hardware
overview
This chapter includes the following information.
Topics:
Using this guide
PowerStore deployment models
PowerStore appliance nodes
Top-of-Rack (ToR) switches
PowerStore logical topology
Top-of-Rack (ToR) switch connectivity options and requirements
Using this guide
This guide is designed to help you prepare to configure your switches and networks for PowerStore.
This document provides guidelines and requirements to allow you to reserve the necessary resources, and make decisions about how you
will deploy your switches and networks for PowerStore. The PowerStore Network Configuration Guide for Dell PowerSwitch Series
provides specific steps for deploying both PowerStore T model appliances and PowerStore X model appliances with Dell PowerSwitch
Series. If you are not deploying with Dell PowerSwitch Series, then see your proprietary documentation for specific steps.
What is included in this guide
This document begins with the PowerStore models and network hardware overview chapter followed by the following two parts.
Table 1. Part descriptions
Part Chapters Description
Part 1: Deploying PowerStore T model
Switches and Networks
2 - 4 Describes the guidelines and requirements to configure the switches and
networks for PowerStore T model deployments.
Part 2: Deploying PowerStore X model
Switches and Networks
5 - 7 Describes the guidelines and requirements to configure the switches and
networks for PowerStore X model deployments.
Refer to PowerStore deployment models in the following section for descriptions of the different PowerStore deployment models.
Hardware demonstrated in this guide
While there are different deployment options, this guide describes the requirements to deploy PowerStore with:
A single cluster consisting of one appliance with a single base enclosure
Two Top-of-Rack (ToR) switches
One out-of-band (OOB) management switch for PowerStore T model deployments
NOTE: PowerStore X model deployment is not supported with an OOB management switch.
Supporting documentation
In addition to reading through this document, you should also read through the following guides, prior to configuring your switches and
networks:
PowerStore Planning Guide
1
6 PowerStore models and network hardware overview
PowerStore Hardware Information Guide
PowerStore deployment models
The different PowerStore models support different types of storage.
Table 2. PowerStore deployment models
Deployment Model numbers Supported configuration Refer to
PowerStore T model
appliance
1000T
3000T
5000T
7000T
9000T
Supports block (Storage Area Network (SAN)), file
(Network Attached Storage (NAS)), and Virtual
Volume (vVol) workloads with the software stack
deployed directly on the bare metal of the system.
NOTE: Hypervisor deployments are not
supported on this model.
Part 1: Deploying PowerStore T
model Switches and Networks
PowerStore X model
appliance
1000X
3000X
5000X
7000X
9000X
Supports block (SAN-only), and vVol workloads
with a hypervisor installed on the system. The
system software is deployed on the hypervisor,
which enables deployment of virtual machines
(VMs) and customer applications within the
hardware.
NOTE: File (network attached storage
(NAS)) services are not supported on this
model.
Part 2: Deploying PowerStore X
model Switches and Networks
PowerStore appliance nodes
PowerStore appliances are deployed with a minimum of one base enclosure. Each base enclosure consists of two nodes.
A base enclosure consists of two nodes. Node A is the bottom node and Node B is the top node (flipped upside down in enclosure). The
port layouts on both nodes are the same.
1
2
3
4
4
4
4
2
3
1
2
4-port card
Management ports
Service ports
I/O Module
1 3
4
Figure 1. PowerStore base enclosure nodes and ports
0
1
2
3
0
1
2
3
Figure 2. 4-Port card port numbers
PowerStore models and network hardware overview
7
NOTE: The examples used in this guide describe how to cable port 0 and port 1 of the 4 port card on the base enclosure
nodes. See the
PowerStore Clustering and High Availability White Paper
for specific steps to add more ports to provide
additional bandwidth and fault tolerance.
Top-of-Rack (ToR) switches
PowerStore requires connectivity to a pair of Top-of-Rack (ToR) switches to ensure high availability.
NOTE: While the switches are referred to as Top-of-Rack (ToR) switches, they do not need to be installed at the top-of-
the PowerStore hardware rack.
Supported switches
See the PowerStore Support Matrix for the list of supported switches. The Support Matrix is available from the Dell support site
at:www.dell.com/support.
Deploying with PowerSwitch Series
PowerStore can be purchased with the following Dell EMC PowerSwitch Series running OS10 Enterprise Edition (OS10EE).
S4148F-ON
S4148T-ON
S5248F-ON
For further information about the Dell PowerSwitch Series running Operating System 10 Enterprise Edition (OS10EE) refer to the
following documents.
Table 3. PowerSwitch documentation resources
Document Reference Location
Dell EMC PowerSwitch S4100-
ON Series Installation Guide
PowerSwitch site preparation requirements,
step-by-step procedures for rack mounting
and desk mounting, inserting modules, and
connecting to a power source.
For Dell EMC S4148F-ON, and S4148T-ON
switches go to the Dell EMC PoweSwitch
S4148-ON/S4148T-ON/S4148FE-ON
Documentation page at:
https://www.dell.com/support/home/us/en/04/
product-support/product/networking-s4148f-on/
docs
For Dell EMC S5248F-ON switches go to the
PowerSwitch S5248F-ON Documentation page
at:
https://www.dell.com/support/home/us/en/04/
product-support/product/networking-s5248f-on/
docs
S5200F-ON Series Installation
Guide
OS10 Enterprise Edition User
Guide
Contains the necessary steps to install the
operating system, access the switch remotely,
and run the switch commands.
Dell EMC PowerSwitch S4148F-ON
Connectivity to PowerStore nodes is through the ports on the I/O panel.
Figure 3. S4148F-ON switch I/O Panel
48x10GbE
4x10/25/40/50/100GbE
Connectivity to S4000 series switches from a jumpbox or laptop is done through the serial console port.
8
PowerStore models and network hardware overview
Serial Console Port
Management Port
Figure 4. S4000 series PSU-side
Dell EMC PowerSwitch S4148T-ON
Connectivity to PowerStore nodes is through the ports on the I/O panel.
Figure 5. S4148T-ON switch I/O-side
48x10 GBASE-T
4x10/25/40/50/100GbE
Connectivity to S4000 series switches from a jumpbox or laptop is done through the serial console port.
Serial Console Port
Management Port
Figure 6. S4000 series PSU-side
Dell PowerSwitch S5248F-ON
You can configure PowerStore with dual Dell PowerSwitch S5248F-ON switch models.
Figure 7. S5248F-ON I/O-side
48x25GbE
4x10/25/40/50/100GbE
Connectivity to S5000 series switches from a jumpbox or laptop is done through the serial console port.
PowerStore models and network hardware overview
9
Serial Console Port
Management Port
Figure 8. S5248 PSU-side
PowerStore logical topology
The following diagrams demonstrate the logical network topology for a PowerStore T model deployment, and a PowerStore X model
deployment.
PowerStore T model logical topology
PowerStore T base enclosure
Management Production
Embedded
module
Embedded
module
ToR 2ToR 1
Storage
Internal
NAS
Remote Discovery
Management
Management VLANS or Subnets Production VLANS or Subnets
Figure 9. PowerStore T model logical topology and network paths
10
PowerStore models and network hardware overview
PowerStore X model logical topology
PowerStore X base enclosure
ToR 1
Embedded
module
ToR 2
Embedded
module
Management Production
Storage
Internal
Remote Discovery
Management
Management VLANS or Subnets
Production VLANS or Subnets
vMotion
Figure 10. PowerStore X model logical topology and network paths
Top-of-Rack (ToR) switch connectivity options
and requirements
PowerStore requires connectivity to a pair of Top-of-Rack (ToR) switches.
This section describes the requirements for:
Switch to switch (L2) connectivity
Node to ToR switch connectivity
NOTE:
PowerStore T model deployments also require connectivity to at least one out-of-band management switch. See
PowerStore T model appliance out-of-band management switch requirements for details.
PowerStore models and network hardware overview 11
Switch to switch (L2) connectivity options
It is recommended to use one of the following options to connect the switches together.
Table 4. Switch to switch interconnect options
Switch interconnect options Recommendation
1. Multi-chassis Link Aggregation
Group (MC-LAG)
Dell highly recommends using MC-LAG for connectivity between the switches.
2. Reliable L2 uplinks If MC-LAG is not an option, then the next best recommended connectivity between the switches is
to use reliable L2 uplinks.
NOTE: If neither MC-LAG or reliable L2 uplinks is an option, you can use a Direct Trunk Link, but this is not
recommended.
Multi-chassis Link Aggregation Group (MC-LAG) interconnect
It is highly recommended that you deploy PowerStore with an MC-LAG interconnect between the two ToR switches.
In an MC-LAG environment, the two switches are treated as one logical switch. This allows you to add all the uplinks from both switches
into a single port channel that will span the MC-LAG.
Layer 3 – Core Uplinks
Uplink A Uplink B
Layer 2 – ToR Switches
Port Channel
MC-LAG
Interconnect
Figure 11. ToR switches with MC-LAG interconnect
NOTE: Port location for the reliable high speed uplinks may change depending on switch vendor or model.
MC-LAG is a switch interconnection technology that joins a number of independent Top-of-Rack (ToR) switches into a single virtual
chassis. MC-LAG allows the link aggregation (LAG) port groups to span multiple chassis, enabling better resilience of the LAG connection.
Additionally, MC-LAG enables traffic going from switch to switch using the full bandwidth of the available connection, without using
spanning tree protocol (STP), which would disable some links to prevent loops.
MC-LAG is a general name for the technology, however certain vendors use their own proprietary terminology to define MC-LAG
connectivity.
Table 5. Vendor specific MC-LAG technology
Vendor Proprietary MC-LAG technology
Dell Virtual Link Trunking (VLT)
12 PowerStore models and network hardware overview
Table 5. Vendor specific MC-LAG technology(continued)
Vendor Proprietary MC-LAG technology
Cisco Virtual PortChannel (vPC)
Brocade Multi-Chassis Trunking (MCT)
NOTE: Refer to your vendor's documentation to determine their technology for MC-LAG.
MC-LAG connectivity requirements are:
A minimum of two connection cables in parallel with a high speed reliable connection.
Connections must be made through the high speed ports on the switch. Verify with your switch provider documentation where the
high speed ports are located on your switch.
Use two cables that support connectivity between the high speed ports. For example 100Gbps Direct Attached Cables (DAC) would
be required to connect the MC-LAG ports together.
Reliable L2 uplink interconnect
Using a reliable L2 (Ethernet level) connection through the uplinks to connect the ToR switches is an acceptable alternative to MC-LAG
for PowerStore deployments.
With a reliable L2 connection you can port-channel the uplinks on each physical switch, which requires creating two port-channels instead
of one.
Layer 3 – Core Uplinks
Uplink A Uplink B
Layer 2 – ToR Switches
Port ChannelPort Channel
Figure 12. ToR switches with reliable L2 uplink interconnect
NOTE: Port location for the reliable high speed uplinks may change depending on switch vendor or model.
Reliable L2 uplinks require redundant, high speed connections.
PowerStore models and network hardware overview
13
Node to Top-of-Rack (ToR) switch connectivity
requirements
A dual switch topology requires that each of the base enclosure appliance nodes have at least one connection to each of the Top-of-Rack
(ToR) switches to provide redundancy at the NIC and switch levels.
Figure 13. Node to ToR switch cabling
When cabling the nodes to the switches:
Port 0 and Port 1 on the same node must connect to opposite switches
Port 0 on Node A, and Port 0 on Node B must connect to opposite switches
Port 1 on Node A, and Port 1 on Node B must connect to opposite switches
14
PowerStore models and network hardware overview
PowerStore T model: Network Planning
Topics:
PowerStore T model out-of-band management switch
PowerStore T model: Network configuration requirements
Prepare to configure the networks
I
PowerStore T model: Network Planning 15
PowerStore T model out-of-band
management switch
This chapter includes the following information.
Topics:
PowerStore T model out-of-band management switch connectivity
PowerStore T model out-of-band management
switch connectivity
In addition to the two Top-of-Rack (ToR) switches required for all PowerStore T model deployments, connectivity to an out-of-band
(OOB) management switch is required for system management and discovery.
Node to out-of-band management switch
The out-of-band (OOB) management switch is connected through the 1 GbE management port on each of the appliance base enclosure
nodes as demonstrated in the following diagram.
Figure 14. Connection to the OOB management switch
Deployment with at least one OOB management switch is required.
The OOB management switch can be configured with or without a management VLAN.
The OOB management switch ports must support untagged native VLAN traffic for remote discovery.
See PowerStore T model appliance networks. in the following chapter for a description of the networks which run over the management
switch.
OOB management switch uplink connections
The following image shows an example of an OOB management switch that connects to two Layer 3 uplink devices. Both of the
connections are connected with a port-channel that offer increased bandwidth and redundancy.
2
16 PowerStore T model out-of-band management switch
Layer 3 – Management Uplinks
Management
Uplink A
Port Channel
Management
Uplink B
Layer 3 – OOB Management Switch
Figure 15. Out-of-band management switch uplink connections
PowerStore T model out-of-band management switch 17
PowerStore T model: Network configuration
requirements
This chapter includes the following information.
Topics:
PowerStore T model appliance networks
PowerStore T model network VLAN requirements
IP address requirements for initial configuration
PowerStore T model appliance networks
PowerStore T model requires all networks to be unique. It is highly recommended to deploy PowerStore T model with multiple and unique
VLANs to separate the traffic. However, if only one VLAN is available, you have the option to deploy PowerStore T model with a single
VLAN and multiple unique subnets as demonstrated below.
PowerStore T base enclosure
Management Production
Embedded
module
Embedded
module
ToR 2ToR 1
Storage
Internal
NAS
Remote Discovery
Management
Management VLANS or Subnets Production VLANS or Subnets
Figure 16. PowerStore T model network traffic
3
18 PowerStore T model: Network configuration requirements
Ensure that the PowerStore T model system interfaces are able to communicate to each other through the VLANs shown above. Consult
your network vendor documents to ensure all proper L2 and/or L3 traffic is being routed properly for all networks that PowerStore T
model is utilizing.
Table 6. PowerStore T model networks
VLAN or Subnet Description Switch used Node transport ports
Remote discovery network is generated
automatically by the system and is
broadcasted as untagged traffic over the
management port. This network is used by
the Discovery Utility that is running on a
workstation.
Out-of-band
management
Dedicated 1 GbE Management
Management network traffic which provides
access to:
Infrastructure services such as DNS, NTP,
and SMTP.
PowerStore REST API, PowerStore
Manager, and PowerStore CLI
SupportAssist
Out-of-band
management
Dedicated 1 GbE Management
Storage network (block) traffic and external
data mobility traffic such as replication, and
storage import. PowerStore T model iSCSI
target portals for front-end traffic.
Top-of-Rack (ToR)
switch
First 2 ports of the 4-port card
(LACP bond)
Network attached storage (file) front-end
access such as NFS, SMB, and FTP.
ToR switch First 2 ports of the 4-port card
(LACP bond)
The internal network communication occurs
on the Native VLAN. The internal network is
used:
To manage internal communication such
as to the cluster database, and between
appliances within a cluster. The intra-
cluster management network is encrypted
with IPSEC.
For intra-cluster data mobility traffic such
as storage migration between appliances.
For node-to-node communication to
enable file services when operating in
"Unified," mode.
ToR switch First 2 ports of the 4-port card
(LACP bond)
While configuring your networks, also note the following:
For multi-appliance cluster configurations, ensure the Internal network as shown above has proper L2 and/or L3 routing on the native
VLAN such that the first 2 ports of the 4-port card can communicate to other appliances on the network.
If deploying with file services IPv6 is must be enabled on the ToR switches through the native VLAN.
Network configuration in PowerStore
All PowerStore networks must be configured on the switch. The networks are configured in PowerStore as follows:
Management network must be created the first time you create a cluster through the PowerStore Initial Configuration Wizard.
Storage network can be created for iSCSI traffic the first time you create a cluster through the PowerStore Initial Configuration
Wizard (ICW). However, you have the option of skipping this step in the ICW if you're using Fibre Channel only. If you want to add the
storage network later in PowerStore Manager, REST API, or CLI". See the Dell EMC PowerStore Clustering and High Availability
White Paper for details.
NAS server networks are created through the PowerStore Manager, REST API, or CLI after the initial cluster is created in PowerStore
T model.
PowerStore T model: Network configuration requirements
19
PowerStore T model network VLAN requirements
The following table shows an example of the different type of networks with sample VLAN IDs in a PowerStore T model appliance.
Table 7. PowerStore T model VLAN configuration
Sample
VLAN ID
Network Switch used VLAN Ports Subnet
100 Remote Discovery (runs over the Native VLAN) Out-of-band management Untagged 169.254.x.x/16
100 Management Out-of-band management Untagged y.y.y.y/24
200 Storage Top-of-rack (ToR) switch Tagged y.y.x.y/24
300 NAS servers
NOTE: You can use multiple VLANs if
you are running multiple NAS networks
ToR switch Tagged y.y.z.y/24
1 Internal (runs over the Native VLAN) ToR switch Untagged Internal IPv6 addressing
Untagged traffic
If you want to use the native VLAN for any of your PowerStore networks, you must enter VLAN ID 0 (zero) for any untagged traffic in the
PowerStore Initial Configuration Wizard. PowerStore uses VLAN 0 as a marker for untagged traffic. When you set the VLAN ID to
zero, the network traffic is not tagged (based on the 802.1q standard), and the network takes on the native VLAN. The traffic on that
network is passed as untagged in PowerStore, and the Native VLAN is applied to the untagged traffic through the switch.
IP address requirements for initial configuration
You will need IP addresses to configure the management, and storage networks in PowerStore T model.
Management and storage network IP address
requirements
You will need IP addresses to configure the management and storage networks in PowerStore T model through the Initial Configuration
Wizard (ICW). The ICW runs automatically the first time you discover PowerStore T model.
Table 8. PowerStore T model IP address requirements
Network IP Addresses Required
Management Network Per Appliance Node A 1
Node B 1
Appliance 1
Total Required Per Appliance for Management 3
Per Cluster Cluster IP Address 1
Total Required Per VLAN or Subnet for Management 4
Storage Network
(optional)
Per Appliance Node A iSCSI Target 1
Node B iSCSI Target 1
Total Required Per Appliance for Storage 2
Per Cluster Global Storage Discovery IP
Address (optional)
1
Total Required Per VLAN or Subnet for Storage 3
20 PowerStore T model: Network configuration requirements
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