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Dell Unity™ Family Unisphere® Command Line Interface User Guide

Manage NAS servers

NAS servers are software components on the system that are dedicated to managing operations for data transferred through the SMB or NFS protocols. You must configure at least one NAS server before you can create network share storage. You can configure a NAS server to support Windows network shares (SMB), Linux/UNIX network shares, or both.

NAS servers run on each SP and communicate with network hosts through SP ports. Once you configure a NAS server, you can then create file systems from which you export NFS or SMB network shares. Configured hosts map or mount the network shares to access the file system storage.

Each NAS server is identified by an ID.

The following table lists the attributes for NAS servers.

Table 1. NAS server attributes
Attributes Description
ID ID of the NAS server.
Name Name of the NAS server.
Health state Health state of the NAS server. 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) — Configuration is not complete.
  • Degraded/Warning (10) — Working and performing all functions, but the performance may not be optimum.
  • Minor failure (15) — NAS server has faulted.
  • Major failure (25) — Failed and recovery may not be possible. This condition has resulted in data loss and should be remedied immediately.
Health details Additional health information. See Appendix A, Reference, for details.
SP Primary SP on which the NAS server runs.
NOTE:If the primary SP is degraded or has failed, the server fails over to the other SP. The value displays the current SP the server is using in parentheses. For example, SPA (failed over to SPB).
Storage pool Associated storage pool identifier.
Tenant Identifier and name of the tenant.
Interface ID of the network interface assigned to the NAS server that defines the server IP address and allows the server to communicate with the network and hosts. Manage network interfaces explains how to configure network interfaces on the system.
NOTE:It is allowable to remove the last interface of the server.
CIFS enabled Indicates whether SMB file systems are enabled on the NAS server. Value is yes or no. Default is no. SMB file systems provide support for SMB network shares.
Multiprotocol sharing enabled Indicates whether multiprotocol sharing is enabled for all file systems on the NAS server. Valid values are:
  • yes
  • no
Unix directory service Directory service used for looking up identity information for Unix such as UIDs, GIDs, net groups, and so on. Valid values are:
  • local
  • nis
  • ldap
  • localThenNis
  • localThenLdap
  • none (default)
NOTE:A value other than the default is required for accurate multiprotocol files sharing between Unix and Windows users.
Auto user mapping enabled Applies when multiprotocol sharing mode is enabled. Indicates whether a Windows user who is not mapped to a known Unix/Linux username is allowed to access the NAS server's files.
  • yes— The system generates an internal UID for the Windows user and allows access to the NAS server's files through Windows.
  • no (default)— The Windows authentication fails unless there is a default Unix username configured.
Default Unix username Default Unix user name or Unix ID that grants file access in the multiprotocol sharing mode. This user name is used for Windows users when the corresponding Unix/Linux user name is not found by the mapping mechanism.

The Unix ID format is @uid=xxxx,gid=yyyy@, where xxxx and yyyy are the decimal numerical values of the UID and the primary GID, respectively. When using this ID, the user does not need to be defined in the UDS.

Default Windows username Default Windows user name that grants file access in the multiprotocol sharing mode. This user name is used for Unix users when the corresponding Windows user name is not found by the mapping mechanism.
Replication type Indicates in what asynchronous replication this NAS Server is participating. Valid values are:
  • none
  • local
  • remote
  • mixed
Synchronous replication type Indicates in what synchronous replication this NAS Server is participating. Valid values are:
  • none
  • remote
Replication destination Indicates whether the NAS server is a replication destination. Valid values are:
  • yes
  • no
NOTE:This attribute does not apply to the replication status of related file systems. Use the stor/prov/fs show command to view the replication status of file systems.
Backup only Indicates whether the NAS server is used as backup. This attribute reflects that the NAS server cannot be the production site. This means both planned failover and unplanned failover are disallowed in the backup only NAS server associated replication session.
Migration destination Indicates whether the NAS server is a destination for a NAS import session. Valid values are:
  • yes
  • no
Username translation Indicates whether a Unix to/from Windows user name mapping is enabled. Valid values are:
  • yes
  • no
Packet Reflect enabled Indicates whether the reflection of outbound (reply) packets through the same interface that inbound (request) packets entered is enabled. Valid values are:
  • yes
  • no (default)
Preferred production interfaces overridden Indicates whether the production preferred interfaces are overridden on the replication destination.
Preferred production IPv4 interface Specifies the settings for the preferred production IPv4 interface. Valid values are:
  • <interface ID>
  • auto
Preferred production IPv6 interface Specifies the settings for the preferred production IPv6 interface. Valid values are:
  • <interface ID>
  • auto
Preferred backup IPv4 interface Specifies the settings for the preferred backup and disaster recovery test IPv4 interface. Valid values are:
  • <interface ID>
  • auto
Preferred backup IPv6 interface Specifies the settings for the preferred backup and disaster recovery test IPv6 interface. Valid values are:
  • <interface ID>
  • auto
Source preferred production IPv4 interface Specifies replicated production IPv4 preferred interface settings on the replication destination. If overridden, this may be different from the Preferred production IPv4 interface. Valid values are:
  • <interface ID>
  • auto
Source preferred production IPv6 interface Specifies replicated production IPv4 preferred interface settings on the replication destination. If overridden, this may be different from the Preferred production IPv6 interface. Valid values are:
  • <interface ID>
  • auto
File space used Displays the total file space used for the specified NAS server.
Data Reduction space saved Specifies the size saved when using data reduction for this NAS server.
Data Reduction percent Specifies the storage percentage saved when using data reduction, compared to the total size used by this NAS server.
Data Reduction ratio Specifies the ratio between data without data reduction, and data after data reduction savings for this NAS server.

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