When you connect to a host or vCenter Server using the vSphere Client, you can perform a variety of storage management tasks, including configuring adapters, creating datastores, and viewing storage device information. Storage Limitations in the vSphere ClientThe storage tasks that you can perform when you connect directly to an ESXi host or vCenter Server system with the vSphere Client are limited. Display Storage Devices for a Host in the vSphere ClientUse the vSphere Client to display all storage devices or LUNs available to a host. If you use any third-party multipathing plug-ins, the storage devices available through the plug-ins also appear on the list. Display Storage Devices for an Adapter in the vSphere ClientUse the vSphere Client to display a list of storage devices accessible to a specific storage adapter on the host. View Storage Adapters Information in the vSphere ClientUse the vSphere Client to display storage adapters that your host uses and to review their information. Review Datastore Information in the vSphere ClientUse the vSphere Client to display all datastores available to the hosts and analyze their properties. Assign WWNs to Virtual MachinesYou can assign a WWN to a new virtual machine with an RDM disk when you create this virtual machine. Modify WWN AssignmentsYou can modify WWN assignments for a virtual machine with an RDM. Set Up Networking for Software FCoEBefore you activate the software FCoE adapters, you need to connect the VMkernel to physical FCoE NICs installed on your host. Add Software FCoE AdaptersYou must activate software FCoE adapters so that your host can use them to access Fibre Channel storage. Disable Automatic Host RegistrationWhen you use EMC CLARiiON or Invista arrays for storage, it is required that the hosts register with the arrays. ESXi performs automatic host registration by sending the host's name and IP address to the array. If you prefer to perform manual registration using storage management software, disable the ESXi auto-registration feature. Setting Up Independent Hardware iSCSI AdaptersAn independent hardware iSCSI adapter is a specialized third-party adapter capable of accessing iSCSI storage over TCP/IP. This iSCSI adapter handles all iSCSI and network processing and management for your ESXi system. Configuring Dependent Hardware iSCSI AdaptersA dependent hardware iSCSI adapter is a third-party adapter that depends on VMware networking, and iSCSI configuration and management interfaces provided by VMware. Configuring Software iSCSI AdaptersWith the software-based iSCSI implementation, you can use standard NICs to connect your host to a remote iSCSI target on the IP network. The software iSCSI adapter that is built into ESXi facilitates this connection by communicating with the physical NICs through the network stack. Setting Up iSCSI NetworkSoftware and dependent hardware iSCSI adapters depend on VMkernel networking. If you use the software or dependent hardware iSCSI adapters, you must configure connections for the traffic between the iSCSI component and the physical network adapters. Using Jumbo Frames with iSCSIESXi supports the use of Jumbo Frames with iSCSI. Configuring Discovery Addresses for iSCSI AdaptersYou need to set up target discovery addresses, so that the iSCSI adapter can determine which storage resource on the network is available for access. Configuring CHAP Parameters for iSCSI AdaptersBecause the IP networks that the iSCSI technology uses to connect to remote targets do not protect the data they transport, you must ensure security of the connection. One of the protocols that iSCSI implements is the Challenge Handshake Authentication Protocol (CHAP), which verifies the legitimacy of initiators that access targets on the network. Configure Advanced Parameters for iSCSI in the vSphere ClientThe advanced iSCSI settings control such parameters as header and data digest, ARP redirection, delayed ACK, and so on. Generally, you do not need to change these settings because your host works with the assigned predefined values. Managing Storage DevicesManage local and networked storage device that your ESXi host has access to. Working with DatastoresDatastores are logical containers, analogous to file systems, that hide specifics of each storage device and provide a uniform model for storing virtual machine files. Datastores can also be used for storing ISO images, virtual machine templates, and floppy images. Raw Device MappingRaw device mapping (RDM) provides a mechanism for a virtual machine to have direct access to a LUN on the physical storage subsystem (Fibre Channel or iSCSI only). Understanding Multipathing and FailoverTo maintain a constant connection between a host and its storage, ESXi supports multipathing. Multipathing is a technique that lets you use more than one physical path that transfers data between the host and an external storage device. Storage Hardware AccelerationThe hardware acceleration functionality enables the ESXi host to integrate with compliant storage arrays and offload specific virtual machine and storage management operations to storage hardware. With the storage hardware assistance, your host performs these operations faster and consumes less CPU, memory, and storage fabric bandwidth. Storage Thin ProvisioningWith ESXi, you can use two models of thin provisioning, array‐level and virtual disk‐level. Using Storage Vendor ProvidersWhen using vendor provider components, the vCenter Server can integrate with external storage, both block storage and NFS, so that you can gain a better insight into resources and obtain comprehensive and meaningful storage data.