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Dell Storage with Microsoft Storage Spaces Best Practices Guide

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Subnet requirements for SOFS configurations

Dell recommends that you use five distinct subnets for Scale-Out File Server configurations. Two high-speed storage networks are used for external SMB client communication (L3–routable). Two additional subnets are used for cluster communication (do not require L3 routing). The fifth subnet is used for cluster management and Active Directory integration. This subnet can leverage an existing network infrastructure. If the solution requires high-availability, you must have each redundant pair of subnets routed through two physically separate switches.

Table 1. SOFS configurations -Subnet overview by port
 

Static or DHCP address

Subnet mask

Gateway

DNS

Network

iDRAC server management

Either

X

X

X

Subnet 1 or existing network (L3–routable)

Cluster or server management

Either

X

X

X

Subnet 1 or existing network (L3–routable)
 

Either

X

X

X

Subnet 1 or existing customer network (L3– routable)

External communication to SMB clients

Static

X

X

X

Subnet 2 (Layer 3–

routable)
 

Static

X

X

X

Subnet 3 (Layer 3–

routable)

Internal communication between server cluster nodes

Static

X

    

Subnet 4
 

Static

X

    

Subnet 5

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