Page Comparison

: Linux 

Software: Neo4j

• 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 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

• 2. device_name mount_point file_system_type fs_mntops fs_freq fs_passno