TheKoguryo's Tech Blog

8.2 Mounting and using FSS (File Storage Service) on a Linux VM

Create Subnet

1. Open the navigation menu in the OCI console. Go to Networking > Virtual Cloud Networks.

2. Click on ExampleVCN, the VCN you created earlier.

3. Click Create Subnets

4. Enter creation information: Enter only bold text fields and use default values ​​for the rest.

   • Name: Enter a name, FSS Subnet
   • Subnet Type: Select the default REGIONAL
     • REGIONAL: This is a subnet that is globally located in the region, and has the advantage of being able to use the IP as it is in case of a Failover to another AD.
     • AVAILABILITY DOMAIN-SPECIFIC: Subnet created in AD
   • CIDR Block: 10.0.2.0/24
   • Route Table: Select Default Route Table
   • Subnet Access: Select Public Subnet
   • DHCP Options: Select Default DHCP Options

5. Scroll to the bottom and click Create Subnet

6. FSS Subnet creation complete

   

Create a Security List for File Storage Service

In order to use File Storage Service on FFS Subnet (10.0.2.0/24) from VM on ExampleVCN’s Public Subnet (10.0.0.0/24), the relevant port needs to be opened. Let’s create a Security List for this.

1. Left click Resources > Security Lists

2. Click Create Security List

3. Enter creation information

   • Name: Enter a name, FSS Security List

   • Allow Rules for Ingress: Enter as below table to open as VM target on Public Subnet (10.0.0.0/24)

     Stateless	Source	IP Protocol	Source Port Range	Destination Port Range
     No	10.0.0.0/24	TCP	All	2048-2050
     No	10.0.0.0/24	TCP	All	111
     No	10.0.0.0/24	UDP	All	2048
     No	10.0.0.0/24	UDP	All	111

4. Creation complete

   

Apply Security List to Subnet

1. Go to the detail page of the FSS Subnet you created earlier.

2. Add the FSS Security you just created to the Security List of the FSS Subnet.

   

Create File System

1. Open the navigation menu in the OCI console. Go to Storage > File Storage > File Systems.

2. Click Create File System

3. Enter creation information

   • You can use the default, but change the name for convenience.

   • File System Information

     • Name: Click Edit Details on the right to change the name to the desired name, enter FSS-Storage

   • Export Information : Use default value

   • Mount Target Information

     • New Mount Target Name: Click Edit Details on the right to change the name to the desired name, enter FSS-Mount
     • Virtual Cloud Network: ExampleVCN
     • Subnet: FSS Subnet, select the subnet created for File Storage created earlier

     

Mount File System

1. Click Action Menu on the right side of Export at the bottom of the created File System and click Mount Commands.

2. Check the commands required to mount the FSS on the client.

   Select the OS from the image. The figure below is based on Oracle Linux.

   

3. Connect to the Compute Instance on the Public Subnet (10.0.0.0/24) of ExampleVCN created in the previous exercise.

4. Execute the Mount Commands you checked in the OCI console in order.

   • Command example

     # Install NFS client
     sudo yum install nfs-utils
     # create mount folder
     sudo mkdir -p /mnt/FSS-Storage
     # mount
     sudo mount 10.0.2.105:/FSS-Storage /mnt/FSS-Storage
     

   • Result check and test

     # Check the mount result
     df -h
     # change permissions
     sudo chmod 777 /mnt/FSS-Storage
     # Confirm file creation
     echo 'Hello File Storage' > /mnt/FSS-Storage/hello1.txt
     ls -la /mnt/FSS-Storage/
     

5. Example Results

   ubuntu@NOTEBOOK-WORK:~/.ssh$ ssh -i mysshkey opc@152.67.220.47
   Last login: Fri Jan 14 01:57:59 2022 from 223.62.21.154
   [opc@examplelinuxinstance ~]$ # Install NFS client
   [opc@examplelinuxinstance ~]$ sudo yum install nfs-utils
   Loaded plugins: langpacks, ulninfo
   Package 1:nfs-utils-1.3.0-0.68.0.1.el7.2.x86_64 already installed and latest version
   Nothing to do
   [opc@examplelinuxinstance ~]$ # Create mount folder
   [opc@examplelinuxinstance ~]$ sudo mkdir -p /mnt/FSS-Storage
   [opc@examplelinuxinstance ~]$ # mount
   [opc@examplelinuxinstance ~]$ sudo mount 10.0.2.105:/FSS-Storage /mnt/FSS-Storage
   [opc@examplelinuxinstance ~]$ # Check the mount result
   [opc@examplelinuxinstance ~]$ df -h
   Filesystem               Size  Used Avail Use% Mounted on
   devtmpfs                 7.7G     0  7.7G   0% /dev
   tmpfs                    7.7G     0  7.7G   0% /dev/shm
   tmpfs                    7.7G  8.8M  7.7G   1% /run
   tmpfs                    7.7G     0  7.7G   0% /sys/fs/cgroup
   /dev/sda3                 39G  3.9G   35G  11% /
   /dev/sda1                200M  7.5M  193M   4% /boot/efi
   tmpfs                    1.6G     0  1.6G   0% /run/user/0
   tmpfs                    1.6G     0  1.6G   0% /run/user/994
   tmpfs                    1.6G     0  1.6G   0% /run/user/1000
   10.0.2.105:/FSS-Storage  8.0E     0  8.0E   0% /mnt/FSS-Storage
   [opc@examplelinuxinstance ~]$ # Confirm file creation
   [opc@examplelinuxinstance ~]$ sudo chmod 777 /mnt/FSS-Storage
   [opc@examplelinuxinstance ~]# echo 'Hello File Storage' > /mnt/FSS-Storage/hello1.txt
   [opc@examplelinuxinstance ~]# ls -la /mnt/FSS-Storage/
   total 9
   drwxr-xr-x. 2 root root  1 Jan 14 01:59 .
   drwxr-xr-x. 3 root root 25 Jan 14 01:59 ..
   drwxr-xr-x. 2 root root  0 Jan 14 01:59 .snapshot
   -rw-r--r--. 1 opc  opc  19 Jan 14 01:59 hello1.txt
   

6. Update /etc/fstab to mount automatically after VM restart.

   #
   # /etc/fstab
   # Created by anaconda on Wed Dec 1 01:55:42 2021
   ...
   
   10.0.2.105:/FSS-Storage /mnt/FSS-Storage nfs defaults,nofail,nosuid,resvport 0 0