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Article Number: 000019599

Dell EMC Unity: Changing NAS Server SP Ownership (User Correctable)

Summary: This article covers the steps to manually change the ownership of a NAS Server to a different Storage Processor

Article Content

Instructions

Changing the SP owner of a NAS Server and its file systems has many use cases. One of the main functions is to allow easy management by an Admin when attempting to balance the utilization of an array.

In Unity, this task can be done in multiple ways, depending on the tools and services used to manage the array:

Using GUI:

Example: Changing the NAS "NAS_Unity_01" from SPA to SPB due to load balance issues:
  1. Within the Unity GUI, go to Storage > File > NAS Servers
  2. Once you are in the list of NAS servers, double click on the NAS server that you wish to modify.
  3. In the General tab, go to the SP Owner section and select the SP that you intent do move the NAS Server.
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  1. Select the button to Apply the changes at the bottom of the Screen.
  2. Close the General Properties of the NAS Server and refresh the list to ensure that the change was completed.
## IMPORTANT NOTE ##
Please ensure that the network configuration is correctly set to allow the IP of the NAS Interface to be used with the Destination Storage Processor. If the correct network configuration settings are not applied, the task to move the NAS Server to another Storage Processor may result in a Data Unavailability (DU) scenario.

Using UEMCLI:

Example: Changing NAS Server "NAS_Unity_01" from SPB to SPA. 
  1. Collect the NAS Server ID Information:
To get this information, the following command can be used: uemcli /net/nas/server show
The following output will be received while running the above command. The output will list all of the NAS Servers present on the machine:

service@Unity spa:~/user # uemcli -u admin -p password /net/nas/server show       
1:    ID                            = nas_73                   -> ID of the NAS Server
      Name                          = NAS_Unity_01             -> Name of the NAS Server
      NetBIOS name                  =
      SP                            = spb                      -> Current SP that is the owner of the NAS Server.
  1. To change the NAS Server SP Ownership, insert the following command with the array credentials: uemcli -u <Admin_User> -p <Password> /net/nas/server -id <NAS_ID> set -sp <Destination SP>
service@Unity spa:~/user # uemcli -u admin -p password /net/nas/server -id nas_73 set -sp spa   
WARNING: modifying the NAS server's SP disrupts any running NDMP jobs, and may also result in data unavailability for some client configurations other than NFS (v3, v4, and v4.1) and SMB3+CA. The NDMP jobs must be restarted after the SP modification is completed.
Are you sure you want to modify the SP?
yes / no: yes
ID = nas_73
Operation completed successfully.
  1. Confirm that the SP ownership has been changed by using the command from step 1: 
service@Unity spa:~/user # uemcli -u admin -p password /net/nas/server -id nas_73 show
1:    ID                            = nas_73
      Name                          = NAS_Unity_01
      NetBIOS name                  =
      SP                            = spa                      -> New SP that is the owner of the NAS Server.

Article Properties

Affected Product

Dell EMC Unity Family

Product
Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 350F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 450F, Dell EMC Unity 500, Dell EMC Unity 500F, Dell EMC Unity 550F, Dell EMC Unity 600, Dell EMC Unity 600F, Dell EMC Unity 650F , Unity All Flash, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid, Unity Hybrid flash, UnityVSA, Dell EMC UnityVSA Professional Edition/Unity Cloud Edition ...
Last Published Date

23 Nov 2020

Version

2

Article Type

How To

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