Vmware esxi 5 maximums
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To leverage more available bandwidth with NFS version 3.0, an ESXi host may have multiple connections to the storage targets. This means that although there may be alternate connections available for failover, the bandwidth for a single datastore and the underlying storage is limited to what a single connection can provide. It is important to understand that with NFS version 3 there is only one active pipe for the connection between the ESXi host and a single storage target. Although there are two connections when an NFS datastore is mounted to an ESXi host (one connection for control, the other connection for data), there is still only a single TCP session for I/O. There are still some limits to the multipathing and load-balancing approaches that can be taken.
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Support for NFS version 4.1 was introduced in vSphere 6.0. NFS version 3 has been supported since the early days of ESXi. VMware supports both NFS version 3 and NFS version 4.1 over TCP/IP. This section explains the different types of network settings and how they work in different VMware NFS versions.
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For item two, when mounting the NFS storage on the ESXi host(s), one would need to provide the NFS storage target mount point, the IP or hostname of the target, and a datastore name that will be used to identify the NFS storage on the ESXi host(s). With these items addressed, an NFS datastore can now be added to the ESXi host following a similar process to the one used to configure a data store for block based datastores. You will need to populate the network access information. Regarding item one above, to configure the vSwitch for IP storage access you will need to create a new portgroup, indicating it is a VMkernel type connection. For more details on NFS storage options and setup, consult the best practices for VMware provided by your storage vendor.