Dell EMC Unity: How to access the destination NAS_Server after deleting the replication session without fail over (User Correctable)
Summary: This article elaborates the procedure for how to access the destination nasserver once the replication session is deleted without performing the failover.
Instructions
The replication session was deleted before failing over which leaves the nas_server in the state of replication destination.
To access the nas_server, mark the nas_server as Replication Destination=NO.
CAUTION: DO NOT PROCEED BEFORE READING THE BELOW KB AS YOU COULD CAUSE DATA UNAVAILABILITY.
- KB article 50520: Dell EMC Unity: Destination NAS server was promoted and started to respond the requests from clients. (Dell EMC Correctable)
For checking the Replication destination status, use the below UEMCLI command:
Command:
uemcli -u admin -securePassword /net/nas/server show -detail << This command provides the Nas Server ID, Name, and the Replication destination status.
After confirming the replication destination is set as "Yes", use the below command to change it to "No":
Command:
uemcli -u admin -securePassword /net/nas/server -name <Nas_Server Name> set -replDest no
uemcli -u admin -securePassword /net/nas/server -id <Id found from the above command> set -replDest no
After changing the status, use the below command to confirm:
Command:
uemcli -u admin -securePassword /net/nas/server -id <nas_server ID> show -detail
After changing the status of the nas_server, access the nas_server normally without any issues.
Additional Information
In the below output, the nas server in question is id = nas_3.
10:37:42 root@CXXXXXXXXXXX9 spb:/cores/service/user# uemcli /net/nas/server show -detail
Storage system address: 127.0.0.1
Storage system port: 443
HTTPS connection
Would you like to:
[1] Accept the certificate for this session
[2] Reject the certificate
[3] Accept and store
Input your selection (The default selection is [1]):
1: ID = nas_2
Name = File_XXX
NetBIOS name =
SP = spb
Storage pool = pool_8
Tenant =
Interface = if_5
NFS enabled = yes
NFSv3 enabled = yes
NFSv4 enabled = yes
CIFS enabled = no
Workgroup =
Windows domain =
Multiprotocol sharing enabled = no
Unix directory service = none
Auto user mapping enabled =
Default Unix user =
Default Windows username =
Extended Unix credentials enabled = no
Credentials cache retention = 15m
Username translation =
Packet Reflect enabled = no
Health state = OK (5)
Health details = "The component is operating normally. No action is required."
Type = 64
Replication type = none
Synchronous replication type = none
Replication destination = no
Backup only = no
Migration Destination = no
Preferred production interfaces overridden =
Preferred production IPv4 interface = auto
Preferred production IPv6 interface = auto
Preferred backup and DR test IPv4 interface = auto
Preferred backup and DR test IPv6 interface = auto
Source preferred production IPv4 interface =
Source preferred production IPv6 interface =
File space used = 4692677992448 (4.2T)
Compression space saved = 0
Compression percent = 0%
Compression ratio = 1.0:1
Data Reduction space saved = 0
Data Reduction percent = 0%
Data Reduction ratio = 1.0:1
2: ID = nas_3
Name = SXXXXNFS
NetBIOS name =
SP = spb
Storage pool = pool_8
Tenant =
Interface = if_6, if_10
NFS enabled = yes
NFSv3 enabled = yes
NFSv4 enabled = yes
CIFS enabled = no
Workgroup =
Windows domain =
Multiprotocol sharing enabled = no
Unix directory service = none
Auto user mapping enabled =
Default Unix user =
Default Windows username =
Extended Unix credentials enabled = no
Credentials cache retention = 15m
Username translation =
Packet Reflect enabled = no
Health state = OK (5)
Health details = "The component is operating normally. No action is required."
Type = 64
Replication type = none
Synchronous replication type = none
Replication destination = yes
Backup only = no
Migration Destination = no
Preferred production interfaces overridden = Auto synchronized
Preferred production IPv4 interface = auto
Preferred production IPv6 interface = auto
Preferred backup and DR test IPv4 interface = auto
Preferred backup and DR test IPv6 interface = auto
Source preferred production IPv4 interface = auto
Source preferred production IPv6 interface = auto
File space used = 74364051456 (69.2G)
Compression space saved = 0
Compression percent = 0%
Compression ratio = 1.0:1
Data Reduction space saved = 0
Data Reduction percent = 0%
Data Reduction ratio = 1.0:1
10:41:41 root@CXXXXXXXXXXX9 spb:/cores/service/user# uemcli -u admin -securePassword /net/nas/server -name SXXXXNFS set -replDest no
Password:
Storage system address: 127.0.0.1
Storage system port: 443
HTTPS connection
Would you like to:
[1] Accept the certificate for this session
[2] Reject the certificate
[3] Accept and store
Input your selection (The default selection is [1]):
ID = nas_3
Operation completed successfully.
10:43:37 root@CXXXXXXXXXXX9 spb:/cores/service/user# uemcli /net/nas/server show -detail
Storage system address: 127.0.0.1
Storage system port: 443
HTTPS connection
Would you like to:
[1] Accept the certificate for this session
[2] Reject the certificate
[3] Accept and store
Input your selection (The default selection is [1]):
1: ID = nas_2
Name = File_XXX
NetBIOS name =
SP = spb
Storage pool = pool_8
Tenant =
Interface = if_5
NFS enabled = yes
NFSv3 enabled = yes
NFSv4 enabled = yes
CIFS enabled = no
Workgroup =
Windows domain =
Multiprotocol sharing enabled = no
Unix directory service = none
Auto user mapping enabled =
Default Unix user =
Default Windows username =
Extended Unix credentials enabled = no
Credentials cache retention = 15m
Username translation =
Packet Reflect enabled = no
Health state = OK (5)
Health details = "The component is operating normally. No action is required."
Type = 64
Replication type = none
Synchronous replication type = none
Replication destination = no
Backup only = no
Migration Destination = no
Preferred production interfaces overridden =
Preferred production IPv4 interface = auto
Preferred production IPv6 interface = auto
Preferred backup and DR test IPv4 interface = auto
Preferred backup and DR test IPv6 interface = auto
Source preferred production IPv4 interface =
Source preferred production IPv6 interface =
File space used = 4692746174464 (4.2T)
Compression space saved = 0
Compression percent = 0%
Compression ratio = 1.0:1
Data Reduction space saved = 0
Data Reduction percent = 0%
Data Reduction ratio = 1.0:1
2: ID = nas_3
Name = SXXXXNFS
NetBIOS name =
SP = spb
Storage pool = pool_8
Tenant =
Interface = if_6, if_10
NFS enabled = yes
NFSv3 enabled = yes
NFSv4 enabled = yes
CIFS enabled = no
Workgroup =
Windows domain =
Multiprotocol sharing enabled = no
Unix directory service = none
Auto user mapping enabled =
Default Unix user =
Default Windows username =
Extended Unix credentials enabled = no
Credentials cache retention = 15m
Username translation =
Packet Reflect enabled = no
Health state = OK (5)
Health details = "The component is operating normally. No action is required."
Type = 64
Replication type = none
Synchronous replication type = none
Replication destination = no
Backup only = no
Migration Destination = no
Preferred production interfaces overridden =
Preferred production IPv4 interface = auto
Preferred production IPv6 interface = auto
Preferred backup and DR test IPv4 interface = auto
Preferred backup and DR test IPv6 interface = auto
Source preferred production IPv4 interface =
Source preferred production IPv6 interface =
File space used = 74364092416 (69.2G)
Compression space saved = 0
Compression percent = 0%
Compression ratio = 1.0:1
Data Reduction space saved = 0
Data Reduction percent = 0%
Data Reduction ratio = 1.0:1