I created an EC2 Windows instance with gp2 EBS volume.
But on logging into the windows system and checking on Disk Management, I don't find the added volume space under both un-allocated or primary partition.
I created the instance using an AWS launch template and the Device name of EBS was given as xvda.
What am I missing here?
Changing the name of EBS from xvda to xvdd in ec2 launch template and creating a new instance solved the issue.
Seems like any EBS Device name below C is not shown in Disk Management, which is weird.
For those who cannot create a new instance, create a new volume from EBS volume and attach it to instance manually and restart the windows machine. Then it would come up in the Disk management.
Related
We have a EBS volume from a previous T2 instance, which contains operating system, mysql installation, created users and all configurations.
For launching a new instance (T2), how to use
the pre-existing EBS volume as main bootable disk so that we have the operating system, apps and all configurations? This would save us days of time and efforts.
For a business application, should we choose T2 or T3?
As discussed you can perform the below steps to create an EC2 instance from a pre existing EBS volume.
Create a snapshot from the EBS volume.
Create an AMI from the same.
Look for the AMI in your private AMI.
Create the EC2 instance with desired instance-type from this AMI.
Also you need to care for the EBS volumes with this new EC2 instance with minimum EBS volume size etc.
Please let me know.
I created two virtual disks for AWS EC2. One is 16G and the other is 100G.
When I connect to EC2 with puTTy it does not show the disks that I created.
Anyone know what the problem is or how to fix it? Thanks.
Make an Amazon EBS volume available for use on Linux
After you attach an Amazon EBS volume to your instance, it is exposed as a block device. You can format the volume with any file system and then mount it. After you make the EBS volume available for use, you can access it in the same ways that you access any other volume. Any data written to this file system is written to the EBS volume and is transparent to applications using the device.
Depending on your requirement you can choose two ways:
Format and mount an attached volume
Automatically mount an
attached volume after reboot
I am new to AWS EC2 and I have just purchased a t3 medium reserved instance. I would like to add 100 GB of SSD storage to my instance and use it as the instance's primary hard disk. How can I do this? I did not see any option of adding and configuring the SSD disk when I purchased the instance.
I have purchased a linux/unix instance without any AMI. I intend to install Ubuntu 18.04 as the OS. Please advise.
In AWS your SSD disk is known as an EBS Volume.
To update the volume size you would from the EC2 console want to find your current volume and right click on it. Then click modify volume and select your new size.
If you haven't created your instance yet you can specify the size during the wizard.
My basic need is that I should be able to make new instance from my saved image for current running Centos with all settings.
I am thinking of two options:
Create the AMI from the any state
Create the snap shots of EBS
I am confused what is the differnece between them. Are they same or different?
Can I make new instances from EBS snapshots/?
Also, can I use AMI on my localhost to create the same OS?
There are two types of AMIs/instances: EBS boot and instance-store (sometimes referenced as S3-based). You are probably using EBS boot, so this answer will relate to that type.
An EBS boot AMI is an EBS snapshot of a boot EBS volume with some extra attributes including:
Registered as an AMI with an AMI id
AKI (kernel)
ARI (ramdisk)
architecture (e.g., 64-bit)
block device mappings (e.g., where volumes should be created/attached)
description, name
permissions (who is allowed to run the AMI)
If you create an AMI of the running instance, you should be able to start new instances in the same state. Make sure you test this process so that you know it works.
If you simply snapshot the EBS volume(s) of your running instance, you will be able to create volumes from those snapshots to access the configuration and data.
It is also possible to take an EBS snapshot of an EBS boot volume and register it as an EBS boot AMI so that you can run more instances starting with that state. When registering the AMI, you'll need to specify the correct AKI, architecture, and other meta-data in order for this to work, so research and practice before you trust this approach.
It took me a while to understand it as I am new with it, but here is a thing if you are using EBS backed:
If you want to start immediately create AMI Image( which creates image of OS and store data as EBS Snapshot), then the whole AMI Image contains current state of your instance which is installed OS which is all config and data files.
If you only take EBS snapshot, then for restore you need to launch new AMI, and you can attach this volume to it for just to access data. If your new AMI has different OS or upgraded may be few of your config won't work and you need to install your packages from scratch. So you should check this first.
In simple words EBS Snapshot can not be used as root volume unless you make and own its AMI image :-)
In brief, EBS boot AMI = EBS root volume snapshot + metadata
For better understanding, you can play it through hands on.
create an EBS snapshot for a particular running instance.
Find this snapshot.
Fill some meta data, and build image(AMI)
You did it. A brand new AMI has been created.
I would like to increase the size of EC2 disk space on AWS.
I have Redhat AMI that is connected to this volume.
What is the best way to increase the space (without losing the data)?
You can attached EBS to it.
This is a network based disk that you can create and then attach it to the instance. You can later detach it and attach it again to this or other instances. You can also take snapshot of this disk as backup or to create new EBS from it.