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Dell Unity™ Family Unisphere® Command Line Interface User Guide

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Manage host configurations

Hosts are the clients or servers in your network that access storage on the system. Host configurations are logical connections through which hosts or applications can access storage resources. Before a host can access storage, you must define a configuration for it and associate it with a storage resource. Create a host configuration for each host, host subnetwork (subnet), or network group (netgroup) that will access storage resources on the system.

You can create the following types of host configurations:

  • Individual host configurations — Enable you to define and control access to storage resources on a host-by-host basis.
  • Subnet and netgroup configurations — Enable you to define and control access to storage resources for multiple hosts or network segments.

Each host configuration is identified by an ID.

The following table lists the attributes for host configurations.

Table 1. Host configuration attributes
Attribute Description
ID ID of the host configuration.
Name Name of the host configuration.
Description Brief description of the host configuration.
Tenant Tenant with which the host is associated.
Address Hostname or IP address associated with the host, IP address of the subnet, or name of the netgroup.
NOTE:This information is required when connecting hosts to network shares on the system.
Netmask Subnet mask for the host.
Type Type of host configuration. Value is one of the following:
  • host — A host defines and controls access to storage resources on a host-by-host basis.
  • subnet — A subnet is a logical grouping of connected network devices. Devices on a subnet share contiguous ranges of IP addresses. A subnet mask, or network mask, defines the boundaries of an IP subnet.

    You can associate a host configuration with a subnet mask to define and control storage access for hosts on a particular network segment.

  • netgroup — A netgroup is a named sets of hosts, users, or domains on a network. A netgroup can provide a way to reference sets of Linux/UNIX hosts collectively for accessing storage over NFS.

    You can create a host configuration for a netgroup to define and control storage access for multiple Linux/UNIX hosts or users through a single configuration.

NOTE:Typically, netgroups are accessible only through NIS. If NIS is not running, netgroups are not defined. Manage NIS server domains explains how to configure NIS server communication.
OS type Type of operating system (OS) running on the host. You can enter any value you want. Here are suggestions for some of the common operating systems:
  • undefined — OS is not specified (default) or unknown.
  • other — Other.
  • win2003srv — Windows Server 2003.
  • winxp — Windows XP.
  • win2008srv — Windows Server 2008.
  • winvista — Windows Vista.
  • win2012srv — Windows Server 2012.
  • esx — VMware ESX.
  • redhat — Red Hat Enterprise Linux.
  • sles — SUSE Linux Enterprise.
  • win7 — Windows 7.
  • hyperv — Microsoft Hyper-V.
  • solaris — Solaris.
Ignored address A comma-separated list of host IP addresses to exclude from data access.
Health state Health state of the host. The health state code appears in parentheses. Value is one of the following:
  • Unknown (0) — Status is unknown.
  • OK (5) — Working correctly.
  • OK BUT (7) — Working correctly, but there could be a problem.
  • Degraded/Warning (10) — Working and performing all functions, but the performance may not be optimum.
  • Minor failure (15) — Working and performing all functions but overall performance is degraded. This condition has a minor impact on the system and should be remedied at some point, but does not have to be fixed immediately.
  • Major failure (20) — Failing and some or all functions may be degraded or not working. This condition has a significant impact on the system and should be remedied immediately.
  • Critical failure (25) — Failed and recovery may not be possible. This condition has resulted in data loss and should be remedied immediately.
  • Non-recoverable error (30) — Completely failed and cannot be recovered.
Health details Additional health information. See Appendix A, Reference, for health information details.
Management type Indicates the way the host is managed. Value is one of the following:
  • VMware — The host is managed through VMware web services.
  • Other — The host is automatically created on the storage system.
  • Manual — The host is created manually.
Accessible LUNs A comma-separate list of LUNs that are accessible to the host.
Host LUN IDs Comma-separated list of HLUs (Host LUN identifiers), which the corresponding hosts use to access the LUN.
Host group Host group that the host is in.

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