Dell EMC Unity: Duplicated item in host list, Error Code: 0x900a12b (User Correctable)

Summary: Issue: Changing attribute access to a host like read-only, R/W, or root, sends an error of having a duplicate host in the list.

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Instructions

Issue:
Changing attribute access to a host, such as read-only, R/W, root, and so forth, sends an error of having a duplicate host in the list.

Example of issue:
Here, we are trying to give root access to the host for this NFS network share:
 
[root@xxxxxxxxxxxxxx tmp]# /usr/bin/uemcli -d 10.0.0.1 -u admin -p Password123# /stor/prov/fs/nfs -name npbejap6_app set -roHosts '10.4.44.34' -advHostMgmtEnabled no
Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

Operation failed. Error code: 0x900a12b
Duplicated item in host list. (Error Code:0x900a12b)


Step 1: Check the host NFS network and share details with the below command:
 
Example:
[root@xxxxxxxxxxxxxx tmp]# /usr/bin/uemcli -d 10.0.0.1 -u admin -p Password123# /stor/prov/fs/nfs -name "npbejap6_app" show -detail
Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

1:    ID                   = NFSShare_612
      Name                 = npbejap6_app
      Description          =
      File system          = res_605
      Local path           = /
      Export path          = 10.4.44.249:/npbejap6_app, 10.4.44.248:/npbejap6_app, 10.4.44.247:/npbejap6_app, 10.4.44.246:/npbejap6_app, 10.4.36.61:/npbejap6_app, 10.4.35.61:/npbejap6_app, 10.4.34.61:/npbejap6_app, 10.4.33.61:/npbejap6_app
      Role                 = production
      Default access       = root
      Minimum security     = sys
      Advanced host mgmt   = no
      No access hosts      =
      Read-only hosts      =
      Read/write hosts     = 10.4.44.34
      Read-only root hosts =
      Root hosts           =
      Creation time        = 2020-08-03 19:06:58
      Last modified time   = 2020-08-03 19:06:58
      Allow SUID           = yes
      Anonymous UID        = 4294967294
      Anonymous GID        = 4294967294

Step 2: Once this error is received and identifies which attribute access is set on that host, remove attribute access to host, and then add a new attribute access to the same host.

In the below example, we have given a single apostrophe open and close without arguments in -rwHosts to remove Read/Write access, and then we have given -rootHosts the value of Host IP according to use.

 
[root@xxxxxxxxxxxxxx tmp]# /usr/bin/uemcli -d 10.0.0.1 -u admin -p Password123# /stor/prov/fs/nfs -name npbejap6_app set -rwHosts '' -rootHosts 10.4.44.34 -advHostMgmtEnabled no
Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

ID = NFSShare_612
Operation completed successfully.

Affected Products

Dell EMC Unity, Dell Unity 300, Dell EMC Unity 300F, Dell EMC Unity 350F, Dell EMC Unity XT 380, Dell EMC Unity XT 380F, Dell EMC Unity 400, Dell EMC Unity 400F, Dell EMC Unity 450F, Dell EMC Unity XT 480, Dell EMC Unity XT 480F, Dell EMC Unity 500 , Dell EMC Unity 500F, Dell EMC Unity 550F, Dell EMC Unity 600, Dell EMC Unity 600F, Dell EMC Unity 650F, Dell EMC Unity XT 680, Dell EMC Unity XT 680F, Dell EMC Unity XT 880, Dell EMC Unity XT 880F, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid ...
Article Properties
Article Number: 000190311
Article Type: How To
Last Modified: 20 Oct 2025
Version:  5
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