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Dell Storage with Microsoft Storage Spaces Best Practices Guide

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SMB considerations for SOFS configurations

Dell requires running Microsoft Windows Server 2012 R2 on the servers. Dell recommends that you run Microsoft Windows Server 2012 R2 on all SMB clients. While you can use Microsoft Windows Server 2012 for SMB clients, Dell recommends that you use version R2 to ensure that the SMB clients have access to the new SMB features introduced in Microsoft Windows Server 2012 R2.

Table 1. New and updated features of SMB in Windows Server 2012 R2

Feature

Summary

Automatic rebalancing of Scale-Out File Server clients

Changes the functionality on how SMB clients connect to each scale-out file share. SMB clients are redirected to the node in the cluster, which provides the optimal path to the CSV. This reduces redirected I/O between the storage nodes.

Improved SMB event messages

Provides more information in the SMB event logging, which is used to assist in troubleshooting some network failure conditions.

Hyper-V Live Migration over SMB

Enables the use of advanced SMB features for Live Migration, such as SMB Direct and SMB Multi-channel.

Improved SMB bandwidth management

Expands SMB bandwidth management capability to control different types of SMB traffic.

Support for multiple SMB instances on a Scale-Out File Server

Provides capability for each storage node to be able to segregate intra-cluster CSV and SMB traffic in separate instances.

Improved performance of SMB Direct (SMB over RDMA)

Provides various performance improvements for small I/O workloads.

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