Applications can pick up exactly where they left off instead of rebuilding the memory footprint all over again with Amazon EC2 Hibernate. Learn how you can now hibernate your Amazon EC2 instances backed by Amazon EBS and resume them at a later time. Applications that rely on caches and other memory-centric components can take tens of minutes to preload or warm up. You can now pause and resume EC2 Instances running Amazon Linux to get applications up and running quickly today. It’s like closing and opening your laptop!

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Pause and Resume your EC2 Instances
with Hibernate
Frances Pierce
Software Development Engineer
Amazon EC2
K E M C T # 6
Mohan Pichika
Senior Product Manager
Amazon EC2

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Agenda Overview
Why hibernation
Feature overview
Example
Q & A

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At the beginning, you could only “Terminate”
Instance is no longer needed Termination = Deletion Stop incurring charges

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Then we introduced “Stop” and “Start” (shut-down)
Available for Amazon EBS-
backed instances
Stop incurring charges for
the instance
Retains context
(e.g. applications, private IP, elastic
IP, EBS attachments)
Allows modification

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But what if…
Your applications take a
long time to bootstrap
You run instances around
the clock just to keep
them warm
You wish to reuse compute
capacity for multiple
workloads through the day
Stop/Start is good, but not
enough…
1
2
3

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Use hibernation to persist RAM across sessions
No need to modify
existing applications
Just like opening and closing
your laptop (on the cloud)!
Scale faster with warm
instances
A primitive you
can build on

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Use-case: Pre-warmed instances
Cached content needed for faster response
Loading the cache takes ~20 mins
Hibernate warmed instances
Spiky workload

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Use-case: Bin-pack different workloads
Re-use capacity for
analytics in the night
Pause the job when
customer traffic picks up
Resume from the same
state next day
Customer traffic during
peak hours

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Amazon EC2 hibernation overview
Amazon EBS-backed
instances only
Use familiar Stop
and Start APIs
Memory data saved
in Amaon EBS root
volume
RAM contents are
encrypted on Amazon
EBS

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Pre-warmed Instances: Scenario
• Application that takes 45 minutes to bootstrap
• Hours at a time where you don’t need the instances, but would
normally keep them running anyway
• Instead you can hibernate and resume

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EBS root device
Hibernation support
C3, C4, C5, M4, M5,
R3, R4, and R5
instances
Amazon Linux AMIs
(Coming soon: Amazon
Linux 2, Windows, and
Ubuntu)
1 2 3

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Launching instances with hibernation configured
aws ec2 run-instances
--image-id ami-1a2b3c4d
--instance-type m5.large
--block-device-mappings file://mapping.json
--hibernation-options “Configured=true”
[
{
"DeviceName": "/dev/xvda",
"Ebs": {
"DeleteOnTermination": true,
"SnapshotId": "snap-1234567890abcdef0",
"VolumeSize": 30,
"VolumeType": "gp2"
}
}
]
Where mapping.json contains the following:

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Hibernating instances
aws ec2 stop-instances --instance-id i-1a2b3c4d5e6f --hibernate
Once your applications have run and are in the state you want to
preserve:

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Resuming from hibernation
aws ec2 start-instances --instance-id i-1a2b3c4d5e6f
When you want to bring up your warmed instances:

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In the Console – Enable hibernation

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In the Console - Hibernate

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In the Console – Resume from hibernation

22. Thank you!
© 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Frances Pierce
Software Development Engineer
Amazon EC2
frrussel@amazon.com
Mohan Pichika
Senior Product Manager
Amazon EC2
pichikam@amazon.com

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