vsphere-esxi-vcenter-server-55-storage-guide

vSphere Storage• Any paths not described in the previous rules are claimed by NMP.• The Rule Class column in the output describes the category of a claim rule. It can be MP (multipathingplug-in), Filter, or VAAI.• The Class column shows which rules are defined and which are loaded. The file parameter in theClass column indicates that the rule is defined. The runtime parameter indicates that the rule has beenloaded into your system. For a user-defined claim rule to be active, two lines with the same rulenumber should exist, one line for the rule with the file parameter and another line with runtime.Several low numbered rules, have only one line with the Class of runtime. These are system-definedclaim rules that you cannot modify.Display Multipathing ModulesUse the esxcli command to list all multipathing modules loaded into the system. Multipathing modulesmanage physical paths that connect your host with storage.In the procedure, --server=server_name specifies the target server. The specified target server prompts youfor a user name and password. Other connection options, such as a configuration file or session file, aresupported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.PrerequisitesInstall vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started withvSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.ProcedureuTo list multipathing modules, run the following command:esxcli --server=server_name storage core plugin list --plugin-class=MPThis command typically shows the NMP and, if loaded, the MASK_PATH module. If any third-party MPPshave been loaded, they are listed as well.Display SATPs for the HostUse the esxcli command to list VMware NMP SATPs loaded into the system. Display information aboutthe SATPs.In the procedure, --server=server_name specifies the target server. The specified target server prompts youfor a user name and password. Other connection options, such as a configuration file or session file, aresupported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.PrerequisitesInstall vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started withvSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.ProcedureuTo list VMware SATPs, run the following command:esxcli --server=server_name storage nmp satp listFor each SATP, the output displays information that shows the type of storage array or system this SATPsupports and the default PSP for any LUNs using this SATP. Placeholder (plugin not loaded) in theDescription column indicates that the SATP is not loaded.228 VMware, Inc.