Dell S4148U-ON EMC Networking OS10 Enterprise Edition Storage Overview - Page 22

9 9.1 Ethernet-based storage Ethernet-based storage has the advantage of using the same technology that is established throughout the data center. iSCSI storage technology can be implemented either with a dedicated SAN or through a shared or distributed topology. Advancements in SDS technology allow for great flexibility and scalability through distributed storage with hyper-converged appliances. The topologies in this section show how Dell EMC Networking products can be used to implement both iSCSI and SDS storage solutions. iSCSI SAN with leaf-spine data center This section uses a dedicated switch pair to provide an iSCSI session from server CNAs to an iSCSI storage array. Figure 7 shows how storage traffic is serviced with a dedicated storage network while data traffic is serviced on the standard leaf-spine topology. Dedicated iSCSI SAN with leaf-spine data center A dedicated storage network has been a standard for iSCSI-based storage. The two main reasons to deploy a dedicated storage network are: • Performance: - Low latency - Predictable performance that does not compete with application traffic • Administration: - Simplifies management by allowing storage administrators to manage the storage network - Streamlines storage troubleshooting using simple fault isolation 9.1.1 iSCSI configuration Although iSCSI optimization is globally enabled by default on the OS10EE operating system (release 10.4.1.1 and later), manual configuration is often required. To support the iSCSI optimization profile, enable the interface directly connected to the iSCSI storage device. For manual configuration, see the Configure iSCSI optimization section in the latest OS10 Enterprise Edition User Guide. 22 Dell EMC Networking OS10 Enterprise Edition Storage Overview