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Steps to add EBS volume for Neo4j

OS: Linux 

Software: Neo4j

Step 1:

• Create an EBC Volume: (Type GP2)

• EBS volume should be in exact same region and sub region as the instance you wish to mount

• Reference Link : http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-volume.html

Step 2:

• Attach EBS Volume to Instance:

• From volumes section - attach the volume to the instance

• Reference Link :http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-attaching-volume.html

Step 3:

• Mount the drive on that instance:

  Panel
  borderColor green bgColor white titleColor green borderWidth 2 borderStyle solid title Login to your ec2 instance and list the available disks using the following command
  Lsblk       2. Check if the volume has any data using the following command         sudo      sudo file -s /dev/xvdf       3. If the above command output shows “/dev/xvdf: data”, it means your volume is empty       4. Format the volume to ext4 filesystem  using the following command              sudo mkfs -t ext4 /dev/xvdf       5. Create a directory of your choice to mount our new ext4 volume. For Example the name used is “newvolume”              sudo mkdir /newvolume       6. Mount the volume to “newvolume” directory using the following command              sudo mount /dev/xvdf /newvolume/       7. cd into newvolume directory and check the disk space for confirming the volume mount              cd /newvolume              df -h

  
  

Step 4: 

• Change neo4j.conf file to point to new mounted space
  1. Stop neo4j
  2. Uncomment line “dbms.directories.data=data”
  3. Change to “dbms.directories.data=/newvolume/data”

Step 5: 

• Verify neo4j
  1. Start neo4j
  2. Create nodes and verify data

Step 6:

• Unmount
  1. umount /dev/xvdf

Step 7:

• Detach EBS volume
  1. Go to EC2 Volume section
  2. Select the volume
  3. Under Action select detach, if that does not works go for Force detach

Step 8:

• Increase the size
  1. Go to EC2 Volume section
  2. Resize the volume by modifying the volume to desired levels

Step 9:

• Attach the volume to the new fresh instance
  1. From volumes section - attach the volume to the instance
  2. Reference Link : http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-attaching-volume.html

Step 10:

• Mount the volume to newly attached instance
  1. Follow step 3 above

Step 11:

• Neo4j conf updates and data verification
  1. Follow steps 5 and 6

Step 1:

• To make the extend size of EBS volume to be useful we need to resize it with formatting
  1. sudo resize2fs /dev/xvdf

Step 2:

• EBS Automount On Reboot
  1. Back up the /etc/fstab file
  2. sudo cp /etc/fstab /etc/fstab.bak
  3. Open /etc/fstab file and make an entry in the following format
  4. device_name mount_point file_system_type fs_mntops fs_freq fs_passno