Linux Containers Authors: Liz McMillan, Yeshim Deniz, Elizabeth White, Pat Romanski, Zakia Bouachraoui

Related Topics: Linux Containers, Open Source Cloud, Containers Expo Blog, Log Management, @CloudExpo

Linux Containers: Blog Feed Post

v.10 Logical Volume Manager

If you intend to continue using version 9.x products, you should not install LVM

One of the cool new items in v.10 is the use of a logical volume manager (LVM) to create and manage multiple “partitions”. This is the last time I will use the term “partition” to refer to v.10 disk space in this post, since partitioning was the way things were done prior to v.10, moving forward we use the volume system.


The first thing to do is decide if LVM is the right tool for you. Like most massively cool technologies, it supersedes the system it is designed to replace. While we do our best to provide backward compatibility, this is one instance where the systems were different enough that we settled on an “either/or” version of backward compatibility. Thus, if you intend to continue using version 9.x products, you should not install LVM. The benefits of LVM are legion, but due to its adaptability, it does not sit well on the same machine as version 9 partitioning. The best bet is to check and make certain you can/have upgraded all of your modules, and then proceed if you are prepared to completely replace your systems with v.10 systems. You can run v.10 in a 9.x partition, more on that in a moment.


Lets be straight-up about this, I’m not trying to give you a complete set of installation instructions in a blog post, we have an excellent technical publications group that covers this in Chapter Two of our Getting Started Guide (ask.f5.com login required), there’s no reason for me to reinvent wheel when they have done the work of figuring it out and documenting it for you step by step. But I do want to give you an idea of what to expect when you upgrade your system for v.10 and that includes installing LVM and volumes.

First off, you have to use the img2disk utility to transfer the lvm and system volumes to the BIG-IP. There are good instructions on that in Appendix A of the Getting Started Guide. If you think you have a very good reason for running 9.x and v.10 on the same BIG-IP, there are instructions for how to do that also. In this scenario, LVM is not used, so it is outside the scope of this blog post. The short list of items required to get this done is

  1. Download the 10.x iso
  2. us im to transfer the iso to disk
  3. use image2disk to install and set up basic volumes
  4. from the Web GUI run the configuration utility

That’s it. Of course “run the configuration utility” has a bunch of options, you can create, delete, rename, make active, and install volumes, but all of this is well covered in the Getting Started Guide.


Now we come to the meat of the discussion where most of us are concerned – all this rigmarole, what do we get out of it? Well, some modules in the future will utilize configured volumes for things like swap space, but in the short term, the big benefit is that you can maintain multiple versions of v.10 on your BIG-IP. That means that you can have one configuration ready to roll if testing bears out its usefulness and another running production. If you only have one set of BIG-IPs and want to test the upgrade to 10.0.9, for example (no, 10.0.9 doesn’t exist as of this writing, I’m looking forward), you can configure it on a separate volume, and during your scheduled testing period, reboot the BIG-IP to run off of that volume. When testing is done, you can either leave it running on the new version (don’t forget to set that to be the active or “boot” volume!), or you can reboot and come back to the old version.

That also means that you can make a build with your current configuration, test license a module (see Jeff’s article for more on this topic), and if it works, just run off the new volume, if it causes you unforeseen issues, reboot to the old one – but you can keep the one you’re not using around, there’s no longer a limitation (other than available disk space) on the number of partitions/volumes you can have on the disk.


This is a useful set of tools that from a user perspective expands what is already available, and from a module perspective, expands what can be offered to users. All in all I think we’ll see more and more uses for LVM to come about as DevCentral users get out there and install it. Auto switching between volumes based upon events seems possible, though I can’t for the life of me imagine why you’d want to, someone will find a good reason. It might even be a reason that makes us all go “Heyyy…”

I haven’t actually installed v.10 on Lori and I’s box yet, but it’s coming – I have a project rooted in 9.x that has to be cleared up first – and then we’ll start playing more with LVM. After that I’ll circle back and offer you all an update.

Until next time,


Categories:  ,  ,

Read the original blog entry...

More Stories By Don MacVittie

Don MacVittie is founder of Ingrained Technology, A technical advocacy and software development consultancy. He has experience in application development, architecture, infrastructure, technical writing,DevOps, and IT management. MacVittie holds a B.S. in Computer Science from Northern Michigan University, and an M.S. in Computer Science from Nova Southeastern University.

IoT & Smart Cities Stories
Cloud-enabled transformation has evolved from cost saving measure to business innovation strategy -- one that combines the cloud with cognitive capabilities to drive market disruption. Learn how you can achieve the insight and agility you need to gain a competitive advantage. Industry-acclaimed CTO and cloud expert, Shankar Kalyana presents. Only the most exceptional IBMers are appointed with the rare distinction of IBM Fellow, the highest technical honor in the company. Shankar has also receive...
Enterprises have taken advantage of IoT to achieve important revenue and cost advantages. What is less apparent is how incumbent enterprises operating at scale have, following success with IoT, built analytic, operations management and software development capabilities - ranging from autonomous vehicles to manageable robotics installations. They have embraced these capabilities as if they were Silicon Valley startups.
DXWorldEXPO LLC announced today that Telecom Reseller has been named "Media Sponsor" of CloudEXPO | DXWorldEXPO 2018 New York, which will take place on November 11-13, 2018 in New York City, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, will provide an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life ...
Chris Matthieu is the President & CEO of Computes, inc. He brings 30 years of experience in development and launches of disruptive technologies to create new market opportunities as well as enhance enterprise product portfolios with emerging technologies. His most recent venture was Octoblu, a cross-protocol Internet of Things (IoT) mesh network platform, acquired by Citrix. Prior to co-founding Octoblu, Chris was founder of Nodester, an open-source Node.JS PaaS which was acquired by AppFog and ...
The Founder of NostaLab and a member of the Google Health Advisory Board, John is a unique combination of strategic thinker, marketer and entrepreneur. His career was built on the "science of advertising" combining strategy, creativity and marketing for industry-leading results. Combined with his ability to communicate complicated scientific concepts in a way that consumers and scientists alike can appreciate, John is a sought-after speaker for conferences on the forefront of healthcare science,...
"The Striim platform is a full end-to-end streaming integration and analytics platform that is middleware that covers a lot of different use cases," explained Steve Wilkes, Founder and CTO at Striim, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
The deluge of IoT sensor data collected from connected devices and the powerful AI required to make that data actionable are giving rise to a hybrid ecosystem in which cloud, on-prem and edge processes become interweaved. Attendees will learn how emerging composable infrastructure solutions deliver the adaptive architecture needed to manage this new data reality. Machine learning algorithms can better anticipate data storms and automate resources to support surges, including fully scalable GPU-c...
Predicting the future has never been more challenging - not because of the lack of data but because of the flood of ungoverned and risk laden information. Microsoft states that 2.5 exabytes of data are created every day. Expectations and reliance on data are being pushed to the limits, as demands around hybrid options continue to grow.
Dion Hinchcliffe is an internationally recognized digital expert, bestselling book author, frequent keynote speaker, analyst, futurist, and transformation expert based in Washington, DC. He is currently Chief Strategy Officer at the industry-leading digital strategy and online community solutions firm, 7Summits.