![]() ![]() Was ratified as an Internet standard, described in RFC -3530.TCP over IPv4 is now used as a standard. ![]() NFS v3 extends to more UNIX/Linux servers and now also to NAS with storage vendors implementing NFS technology on their systems. NFS v3 arrived in mid 90’s, and support for 64-bit file sizes and offsets and can now handle files larger than 2GB. Version 1 used only internally in SUN development and then new version 2 had some changes and was starting spread out for other UNIX and Linux servers. Since 1984 there were many changes in the NFS. NFS is a network file system that exists since 1984 and was developed by SUN Microsystems, and initial was only build and use for UNIX base. NFS, VMFS (here is included LUNs/Disks), vSAN and recently VVols (Virtual Volumes) are the type of Datastores that we can use in VMware.Ī brief history of NFS and VMFS file systems. NFS is a file level file system, and VMFS is a block level file system. ![]() # esxcli storage nfs add -H -s /ts421_nfs01 -v ts421_nfs01Įxecuting the command to list the attached NFS datastores, the configured NFS datastore is now listed.Īccessing the vSphere Web Client, go to Datastore > Related Objects > Datastores tab to check if the NFS datastore is now available in vCenter Server.ĭo same steps for all the other hosts affected by this problem.To discuss this subject, we need to understand NFS (Network File System) and VMFS (Virtual Machine File System) are different File Systems. Once removed, to map the NFS datastore once again run the command:Įsxcli storage nfs add -H NFS_IP_Hostname -s NFS_Share -v DatastoreName ![]() # esxcli storage nfs remove -v Įxecuting the command to list the attached NFS datastores, no datastores are now detected. Since the storage is configured in the selected host, you need to remove it with the command:Įsxcli storage nfs remove -v DatastoreName To fix this matter, SSH the affected hosts and run the following command to list the configured NFS datastores: Trying to add a new NFS datastore in vSphere, the system displays the error message "Unable to create NFS datastore: specified key, name, or identifier already exists".Īn NFS datastore mapped in a VMware cluster is not seen by some ESXi hosts and the attempt to map it again causes the error shown in the picture. ![]()
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