Re: [PLUG] Topic for North

The lack of the console has always puzzled me – but they really make a lot of effort into making sure that you’re managing your business/infrastructure the ‘cloud way.’ Their whole shtick (and reflected in their certs) is that EC2 should not be treated a colo where you lift-and-shift workloads and forget about them. They express that if you do everything the ‘cloud way’, and utilize their services, and architect correctly – you reduce the amount of people and time you spend on your infrastructure and more time on your business.

(Not taking a position on whether the above is right or wrong, just commenting on what I have observed.)

To fix your issue, I would create a snapshot of the EBS volume that’s not booting, create a volume from that snapshot, and mount it as a second disk on another instance (free tier) – and fix it from that other instance. Once fixed, reattach it to the instance that’s not booting so it boots.

Andy

From: plug <plug-bounces@lists.phillylinux.org> on behalf of "Lee H. Marzke" <lee@marzke.net>
Reply-To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
Date: Monday, February 5, 2018 at 1:20 PM
To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
Subject: Re: [PLUG] Topic for North

AWS talk sounds good.

For kicks I just converted a 3-tier web app on Ubuntu on vSphere to run on EC2. While the VMware

migration tools were neat, and migrated the VM while it was running in vSphere, the results were only fair.

The migration did change the vmxnet3 NIC to another one compatible with EC2, and re-assign a local IP. The

boot disk was re-identified to us one from EBS and it did mount ok.

The migration left the 2nd disk off-line causing the VM to fail boot, and the lack of console access meant that

fixing a simple disk mount was much more difficult. ( The console had the option "push S to skip mounting, but

I couldn't push the 'S' key ) You can 'see' a snapshot of the console, but you can't interact with it .

Why is no console access acceptable on EC2 ? I guess they are assuming that a failed VM should just

be thrown away and re-created. So if it is a snowflake VM, your out of luck.

Lee

From: "Andy Wojnarek" <andy.wojnarek@theatsgroup.com>
To: "Philadelphia Linux User's Group Discussion List" <plug@lists.phillylinux.org>
Sent: Monday, February 5, 2018 12:29:06 PM
Subject: [PLUG] Topic for North

Do we have a topic for North next week?

I recently just passed the AWS CSA certification, and was thinking while it is fresh in my head, presenting about the certification, what’s on it, and how to study for it.

Any yays or nays on this topic for North next week?

--

Andy

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IT Consultant, VMware, VCenter, SAN storage, infrastructure, SW CM
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