EBS Volume Test

Simple Terraform script to deploy an EC2 with 5 EBS Volumes attached to test RAID-0 speeds.

The script deploys:

• An EC2 instance in a private subnet (with a NAT Gateway), and enables login via System Manager - Session Manager to the instance.
• EC2 instance will use the latest x86 Amazon Linux 2 AMI
• 5 EBS volumes at the specified iops/type
• Attaches the EBS volumes to the EC2 instance
• Executes a System Manager - Run Command automation to setup RAID-0 and mounts the volumes to /mnt/raid.

Modifications

To modify the instance type, ebs type (gp3 vs. io2), ebs iops, change the values in variables.tf and run terraform apply again.

Warning

Script by default deploys r5n.16xlarge with five 32GB EBS volumes. None of these are free-tier, and will cost you money. Run with care, and remember to tf destroy when you're done.

Steps

On your local machine:

$ git clone https://github.com/keithrozario/ebs_volumes
$ cd ebs_volumes
$ tf apply --auto-approve

• logon to the AWS console, and go to System Manager -> Session Manager
• Select EBSTesting

Now on the console of System Manager, (replace N with the number of cores on the machine)

$ for i in `seq 1 $((N-1))`; do cpupower idle-set -d $i; done
$ sudo fio --directory=/mnt/raid --name fio_test_file --direct=1 --rw=randrw --bs=16k --size=1G --numjobs=16 --time_based --runtime=180 --group_reporting --norandommap --iodepth=50

You can run more test with fio (that's installed onto the machine)