Deploy Dell PowerFlex v3.6.x

Create the 3-node MDM cluster

Create the 3-node MDM cluster.

1. Create the MDM single-node cluster on MDM 1, by running the following command on MDM 1:

   scli --create_mdm_cluster --master_mdm_ip <IP of MDM 1> --master_mdm_management_ip <Management IP of MDM 1> --master_mdm_name <Name to give MDM 1> [--cluster_virtual_ip <IP>]  [--master_mdm_virtual_ip_interface <INTF>] --accept_license

   Example:

   scli --create_mdm_cluster --master_mdm_ip 192.168.1.152 --master_mdm_management_ip 10.103.110.152 --master_mdm_name mdm152 --cluster_virtual_ip 192.168.111.152 --master_mdm_virtual_ip_interface eth4 --accept_license

   Follow these rules:

   • Each MDM name must be unique. Ensure that each server on which MDM is installed has a unique hostname.
   • Each virtual IP address must be related to a single interface.
   • When listing multiple virtual IP/interface combinations, the list of interfaces must be in the same order as the list of virtual IP addresses.
2. If prompted, press Y to continue.
3. Log in and change the MDM password, by running the following commands on MDM 1:

   scli --login --username admin --password admin

   scli --set_password --old_password admin --new_password Scaleio123

   The login password is changed from admin to Scaleio123.

4. Log in with the new credentials:

   scli --login --username admin --password Scaleio123

5. Add MDM 2 to the MDM cluster as a Standby MDM, by running the following command on MDM 1:

   scli --add_standby_mdm --new_mdm_ip <IP of MDM 2> --mdm_role manager --new_mdm_management_ip <Management IP of MDM 2> --new_mdm_virtual_ip_interface <INTF> --new_mdm_name <Name to give MDM 2>

   Example:

   scli --add_standby_mdm --new_mdm_ip 192.168.1.153 --mdm_role manager --new_mdm_management_ip 10.103.110.153 --new_mdm_virtual_ip_interface eth4 --new_mdm_name mdm153

6. Add TB 1 to the MDM cluster as a tiebreaker, by running the following command on MDM 1:

   scli --add_standby_mdm --new_mdm_ip <IP of TB 1> --mdm_role tb --new_mdm_name <Name to give TB 1>

   Example:

   scli --add_standby_mdm --new_mdm_ip 192.168.1.154 --mdm_role tb --new_mdm_name tb154
7. (Optional) Query the cluster to verify that it’s running in single mode, by running the following command on MDM 1:

   scli --query_cluster

   Output, similar to the following, is displayed:

   Cluster: Mode: 1_node

8. Switch to 3-node cluster mode, by running the following command on MDM 1:

   scli --switch_cluster_mode --cluster_mode 3_node --add_slave_mdm_name <MDM 2 name> --add_tb_name <TB 1 name>

   Example:

   scli --switch_cluster_mode --cluster_mode 3_node --add_slave_mdm_name mdm153 --add_tb_name tb154

9. (Optional) Query the cluster to verify that it is running in cluster mode, by running the following command on MDM 1:

   scli --query_cluster

   Output, similar to the following, is displayed:

   # scli --query_cluster
   Cluster:
       Mode: 3_node, State: Normal, Active: 3/3, Replicas: 2/2
       Virtual IPs: 192.168.111.152
   Master MDM:
       Name: MDM152, ID: 0x7d76db0d2ad840b0
           IPs: 192.168.1.152, Management IPs: 10.103.110.152, Port: 9011, Virtual IP interfaces: eth4
           Version: 2.0.13000
   Slave MDMs:
       Name: MDM153, ID: 0x41788ea96626fe21
           IPs: 192.168.1.153, Management IPs: 10.103.110.153, Port: 9011, Virtual IP interfaces: eth4
           Status: Normal, Version: 2.0.13000
   Tiebreakers:
       Name: MDM154, ID: 0x3d8263b64fcf2642
           IPs: 192.168.1.154, Port: 9011
           Status: Normal, Version: 2.0.13000