Dell APEX Navigator for Multicloud Storage Using Your Service

Prerequisites to enable data mobility between Dell APEX Block Storage for AWS and another Dell APEX Block Storage cluster

You can enable mobility of data volumes between Dell APEX Block Storage for AWS and another Dell APEX Block Storage cluster by configuring the operating system network. Repeat this process for each PowerFlex node.

1. Use SSH to connect to the Dell APEX Block Storage for AWS node.
2. As a root user, go to /etc/sysconfig/network.
3. In the scripts subdirectory, create each of the following two files:
   • scripts/set-static-routes.sh
   • scripts/network_reconfig.sh
4. Paste the following code in the set-static-routes.sh file, and save the file.

   #!/bin/bash
   log=/var/log/network_reconfig.sh.log
   /etc/sysconfig/network/scripts/network_reconfig.sh |& tee $log
   echo
   echo "cat $log # to see results"

5. Paste the following code in the network_reconfig.sh file, and save the file.
   Ensure that you insert the destination CIDR value within the code. This CIDR value specifies the destination network for Storage Data Target (SDT) traffic. Example CIDR: 10.20.30.0/24
   NOTE:AWS Block Storage supports more than one ip route add line if multiple static routes from that cluster are needed.

   #!/bin/bash
   date
   set -x
   nic2=$(find /proc/net/ | grep eth | cut -d "/" -f 5 | sort | tail -1)
   nic2gw=$(ip route | grep $nic2 | grep default | cut -d " " -f 3)
   # Edit the following line to match the network where the target Dell APEX Block Storage cluster is located
   # If you have additional Dell APEX Block Storage cluster networks, add a static route for each network below
   ip route add <insert CIDR here> via $nic2gw dev $nic2 
   ip route
   cat ifcfg-$nic2 | tee ifcfg-$nic2.bak
   grep -v "POST_UP_SCRIPT" ifcfg-$nic2.bak > ifcfg-$nic2
   echo 'POST_UP_SCRIPT="compat:suse:/etc/sysconfig/network/scripts/set-static-routes.sh"' >> ifcfg-$nic2

6. Make the scripts as executable files as follows:

   • chmod +x scripts/set-static-routes.sh

   • chmod +x scripts/network_reconfig.sh

7. As a root user, to set up the ifcfg file, run the following:

   scripts/set-static-routes.sh

8. Verify that the static route is added by running the following command:

   ip route | grep via

9. Verify that a network restart preserves the static route, by running the following command:

   wicked ifup all