Log Management Authors: Dana Gardner, Pat Romanski, Elizabeth White, David H Deans, Carmen Gonzalez

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.

@ThingsExpo Stories
In his session at 21st Cloud Expo, Carl J. Levine, Senior Technical Evangelist for NS1, will objectively discuss how DNS is used to solve Digital Transformation challenges in large SaaS applications, CDNs, AdTech platforms, and other demanding use cases. Carl J. Levine is the Senior Technical Evangelist for NS1. A veteran of the Internet Infrastructure space, he has over a decade of experience with startups, networking protocols and Internet infrastructure, combined with the unique ability to it...
"There's plenty of bandwidth out there but it's never in the right place. So what Cedexis does is uses data to work out the best pathways to get data from the origin to the person who wants to get it," explained Simon Jones, Evangelist and Head of Marketing at Cedexis, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"Cloud Academy is an enterprise training platform for the cloud, specifically public clouds. We offer guided learning experiences on AWS, Azure, Google Cloud and all the surrounding methodologies and technologies that you need to know and your teams need to know in order to leverage the full benefits of the cloud," explained Alex Brower, VP of Marketing at Cloud Academy, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clar...
Large industrial manufacturing organizations are adopting the agile principles of cloud software companies. The industrial manufacturing development process has not scaled over time. Now that design CAD teams are geographically distributed, centralizing their work is key. With large multi-gigabyte projects, outdated tools have stifled industrial team agility, time-to-market milestones, and impacted P&L stakeholders.
Gemini is Yahoo’s native and search advertising platform. To ensure the quality of a complex distributed system that spans multiple products and components and across various desktop websites and mobile app and web experiences – both Yahoo owned and operated and third-party syndication (supply), with complex interaction with more than a billion users and numerous advertisers globally (demand) – it becomes imperative to automate a set of end-to-end tests 24x7 to detect bugs and regression. In th...
"Akvelon is a software development company and we also provide consultancy services to folks who are looking to scale or accelerate their engineering roadmaps," explained Jeremiah Mothersell, Marketing Manager at Akvelon, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"MobiDev is a software development company and we do complex, custom software development for everybody from entrepreneurs to large enterprises," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5–7, 2018, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buye...
"IBM is really all in on blockchain. We take a look at sort of the history of blockchain ledger technologies. It started out with bitcoin, Ethereum, and IBM evaluated these particular blockchain technologies and found they were anonymous and permissionless and that many companies were looking for permissioned blockchain," stated René Bostic, Technical VP of the IBM Cloud Unit in North America, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventi...
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5-7, 2018, at the Javits Center in New York, 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.
"Space Monkey by Vivent Smart Home is a product that is a distributed cloud-based edge storage network. Vivent Smart Home, our parent company, is a smart home provider that places a lot of hard drives across homes in North America," explained JT Olds, Director of Engineering, and Brandon Crowfeather, Product Manager, at Vivint Smart Home, in this SYS-CON.tv interview at @ThingsExpo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Coca-Cola’s Google powered digital signage system lays the groundwork for a more valuable connection between Coke and its customers. Digital signs pair software with high-resolution displays so that a message can be changed instantly based on what the operator wants to communicate or sell. In their Day 3 Keynote at 21st Cloud Expo, Greg Chambers, Global Group Director, Digital Innovation, Coca-Cola, and Vidya Nagarajan, a Senior Product Manager at Google, discussed how from store operations and ...
It is of utmost importance for the future success of WebRTC to ensure that interoperability is operational between web browsers and any WebRTC-compliant client. To be guaranteed as operational and effective, interoperability must be tested extensively by establishing WebRTC data and media connections between different web browsers running on different devices and operating systems. In his session at WebRTC Summit at @ThingsExpo, Dr. Alex Gouaillard, CEO and Founder of CoSMo Software, presented ...
WebRTC is great technology to build your own communication tools. It will be even more exciting experience it with advanced devices, such as a 360 Camera, 360 microphone, and a depth sensor camera. In his session at @ThingsExpo, Masashi Ganeko, a manager at INFOCOM Corporation, introduced two experimental projects from his team and what they learned from them. "Shotoku Tamago" uses the robot audition software HARK to track speakers in 360 video of a remote party. "Virtual Teleport" uses a multip...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
Leading companies, from the Global Fortune 500 to the smallest companies, are adopting hybrid cloud as the path to business advantage. Hybrid cloud depends on cloud services and on-premises infrastructure working in unison. Successful implementations require new levels of data mobility, enabled by an automated and seamless flow across on-premises and cloud resources. In his general session at 21st Cloud Expo, Greg Tevis, an IBM Storage Software Technical Strategist and Customer Solution Architec...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...
An increasing number of companies are creating products that combine data with analytical capabilities. Running interactive queries on Big Data requires complex architectures to store and query data effectively, typically involving data streams, an choosing efficient file format/database and multiple independent systems that are tied together through custom-engineered pipelines. In his session at @BigDataExpo at @ThingsExpo, Tomer Levi, a senior software engineer at Intel’s Advanced Analytics gr...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things’). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing? IoT is not about the devices, it’s about the data consumed and generated. The devices are tools, mechanisms, conduits. In his session at Internet of Things at Cloud Expo | DXWor...