Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On
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@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@black3dynamite said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Cockpit is there by default, no effort there.
Only if you installed Fedora Server Edition.
Well it's for a server
It is not there by default if you choose a minimal install. But that was not the point of this post.
I have to dig more into this - by simply choosing the option Scott pointed out - I now have a machine that's logged in - but no clue what to do next? in XS or VMWare or Hyper-V I'd be presented with a graphical display telling me to download something from some IP address (well OK not Hyper-V), and install XC or VMWare whatever it's called - or I think starting with 6.5 visit the webpage built into the hypervisor now, etc... but with KVM - nope, just a fedora prompt and me now going to search for 'what next'.
When it finally rebooted, the console should tell you to go to https://ip.add.ress:9090
right baove where it shows loginaww - it does not say - GO TO...
But it does say
webconsole: https://localhost:9090/
No one has ever said you didn't have to think or learn nothing to use KVM. Just that it is easy by comparison.
Compared to Hyper-V this is much simpler. Debatable on how much easier than VMWare as I have not installed it in years now.
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@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@black3dynamite said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Cockpit is there by default, no effort there.
Only if you installed Fedora Server Edition.
Well it's for a server
It is not there by default if you choose a minimal install. But that was not the point of this post.
I have to dig more into this - by simply choosing the option Scott pointed out - I now have a machine that's logged in - but no clue what to do next? in XS or VMWare or Hyper-V I'd be presented with a graphical display telling me to download something from some IP address (well OK not Hyper-V), and install XC or VMWare whatever it's called - or I think starting with 6.5 visit the webpage built into the hypervisor now, etc... but with KVM - nope, just a fedora prompt and me now going to search for 'what next'.
When it finally rebooted, the console should tell you to go to https://ip.add.ress:9090
right baove where it shows loginaww - it does not say - GO TO...
But it does say
webconsole: https://localhost:9090/
No one has ever said you didn't have to think or learn nothing to use KVM. Just that it is easy by comparison.
Compared to Hyper-V this is much simpler. Debatable on how much easier than VMWare as I have not installed it in years now.
OK it was braindead'ish easy to install and get to the console. Though - something a bit more in your face about the web console like XS would be nice.
As for what options to choose to get a KVM host - Scott's example above works fine, even from a Netinstall ISO - choose Fedora Server > Headless Virtualization (only selected option)
and you end up with something. I don't have time now to play with it, but I will tomorrow. -
@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Thanks I glossed over the Web console bit.
I'm assuming you added the host name during install which is why it's there in your listing? I didn't do that, so I have the default.
We tend to, because it is part of setting up the static networking, which you often do with hypervisors. not always, of course, but it is common.
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Glad to see you stopped being such a die hard Xen fan
I remember you fighting tooth and nail against KVM on spice forums. -
@dyasny said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Glad to see you stopped being such a die hard Xen fan
I remember you fighting tooth and nail against KVM on spice forums.Not so much a fan, as choosing the best products at the best time. Xen was superior for a long time. KVM had a lot of deficiencies. KVM has pulled ahead in a lot of ways. I don't choose or promote products because I like them, I do so because I believe that they are fitting the specific need best.
That means, that naturally, as the products change over time their place in the universe changes. And nothing is for everyone. Xen still remains a viable player, KVM just makes sense for more shops, more of the time.
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@scottalanmiller my guess is, when Amazon started running KVM (as was expected when they hired Anthony Liguori), that was the last straw for you, because your main argument against KVM has always been "but Amazon..."
But nevermind me, I'm just having fun here. Been riding the KVM train since before it was generally heard of after all
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@dyasny said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller my guess is, when Amazon started running KVM (as was expected when they hired Anthony Liguori), that was the last straw for you, because your main argument against KVM has always been "but Amazon..."
But nevermind me, I'm just having fun here. Been riding the KVM train since before it was generally heard of after all
Amazon still uses both, even now, actually. But that was a factor, to be sure. Amazon's drop in investment meant that Xen had way less future than before. And Citrix serious tried to burn it down, which really sucked. And getting the Xen community to do XCP-NG took a year longer than it should have, so the opportunity wasn't as ripe. And KVM just pulled ahead in a lot of ways, the Linux vendors all adopting it so heavily was a big factor.
XO did a lot to keep Xen on the table, and it is still very viable and good today because of that. And it still might make a comeback. But the lack of serious development around full PV, and the incredible rise of LXD has made Xen's space less viable.
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@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@dyasny said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Glad to see you stopped being such a die hard Xen fan
I remember you fighting tooth and nail against KVM on spice forums.Not so much a fan, as choosing the best products at the best time. Xen was superior for a long time. KVM had a lot of deficiencies. KVM has pulled ahead in a lot of ways. I don't choose or promote products because I like them, I do so because I believe that they are fitting the specific need best.
That means, that naturally, as the products change over time their place in the universe changes. And nothing is for everyone. Xen still remains a viable player, KVM just makes sense for more shops, more of the time.
KVM has been the same since ~2013 she I started with it. The only difference is Cockpit. All the other tools have existed for quite some time.
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@stacksofplates said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@dyasny said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Glad to see you stopped being such a die hard Xen fan
I remember you fighting tooth and nail against KVM on spice forums.Not so much a fan, as choosing the best products at the best time. Xen was superior for a long time. KVM had a lot of deficiencies. KVM has pulled ahead in a lot of ways. I don't choose or promote products because I like them, I do so because I believe that they are fitting the specific need best.
That means, that naturally, as the products change over time their place in the universe changes. And nothing is for everyone. Xen still remains a viable player, KVM just makes sense for more shops, more of the time.
KVM has been the same since ~2013 she I started with it. The only difference is Cockpit. All the other tools have existed for quite some time.
Under the hood to some degree, but tooling and market support have changed a lot. KVM was doing okay, but wasn't the big leader in 2013 like it is now. It's place in the market is important, too.
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@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@stacksofplates said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
@dyasny said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Glad to see you stopped being such a die hard Xen fan
I remember you fighting tooth and nail against KVM on spice forums.Not so much a fan, as choosing the best products at the best time. Xen was superior for a long time. KVM had a lot of deficiencies. KVM has pulled ahead in a lot of ways. I don't choose or promote products because I like them, I do so because I believe that they are fitting the specific need best.
That means, that naturally, as the products change over time their place in the universe changes. And nothing is for everyone. Xen still remains a viable player, KVM just makes sense for more shops, more of the time.
KVM has been the same since ~2013 she I started with it. The only difference is Cockpit. All the other tools have existed for quite some time.
Under the hood to some degree, but tooling and market support have changed a lot. KVM was doing okay, but wasn't the big leader in 2013 like it is now. It's place in the market is important, too.
What tooling? Libguestfs, virsh, and Virt-Manager have been around forever.
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I've not tried XCP-NG/XO since they released it. But my go to is ESXi.
HYPER-V I just found a pain in the rear to admin. Just found sometimes I could manage it with manager built into windows, then when trying on my laptop it wouldn't then it did, then when on VPN again hit or miss.ESXi For me. Is the simple install. Boot. Hop onto the web interface to administer. From there create and change VM's.
Like other solutions backup is separate.
At the moment I'm using Unitrends free appliance and doing agent less backups as all the VMs are Linux based so simple.But of course this is my preference and experience.
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Cockpit doesn't let me setup the networking I want though.
But VMM does.
Once changed, cockpit, of course shows it. But is stilled greyed out.
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Not the one you want, you are limited to NAT for now
Really hoping that that is included in 30. In 28, even the menu didn't exist.
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@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Not the one you want, you are limited to NAT for now
Really hoping that that is included in 30. In 28, even the menu didn't exist.
. . .
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@Dashrender said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
KVM - you need??? in case of VMWare, you need (let's say Veeam - or anything else you buy/Open Source), in
- GhettoVCB is open source and has been around for years for VMware.
- KVM lacks a common CBT API. You have one off's of proprietary overlays and forks. It also lacks anything like VAIO as a kernel API enabling IO split and data service insertion (handy for crazy low RPO/RTO stuff).
It's worth noting that people running 2TB and 5VM's are normally just going to use an agent-based solution anyways...
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@JaredBusch said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Once changed, cockpit, of course, shows it. But is stilled greyed out.
Not to rub salt in the wound, but this is stuff that ESXi's had for a decade. It's why I hate "feature checklist" or over-focus on 1-2 aspects of a system. It ignores the operational realities of what most people's day 0, or day 2 operations look like.
If Free KVM UI's were full featured, and intuitive, and had a low-cost support option for backing them I think we would see Scale Computing and other KVM appliance offerings have zero VC/Market Cap. Given these products have existed for 10 years, and they struggle in these most basic of ways I don't feel there is a huge amount of money going into solving this problem (and by proxy) not a lot of market demand.
The fight for the management plane has moved on from Hypervisors (That war is frankly over) and has moved on to containers, hybrid cloud management, networking/security and a host of other things.
In containers Kuberentes has "won", but there's a lot of adjacent product space for making things like Networking and security, not a dumpster fire. The reality is that ESXi "won" the on-premises datacenter war, Hyper-V's entire focus is on Azure/AzureStack now (fighting VMware on a full SDDC stack and Hybrid Cloud). Talking to one large OEM recently Microsoft has pulled all funding for headcounts on competitive Hyper-V trying to displace ESXi on premises. They recognize that the fight has moved on.
KVM is showing up in a few turnkey appliance vendors (Scale Computing, NTNX) but from what I'm seeing adoption numbers are a rounding error of the total addressable market (Some could argue though that everyone underestimates the growth of on-premises IT, especially on the edge making this still an underestimated TAM). I suspect we'll KVM in IoT platforms on a net adoption rate, but not in people actually having SSH to the platform or consuming it at large scale as a pure open source, roll your own. KVM in public cloud (like AWS) still has solid market share growth going on (As it slowly replaces the massive amount of Xen especially at AWS).
Meanwhile OpenStack continues to lurk in Telco where it's gotten a solid footing despite the rest of us all forgetting it exists
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@StorageNinja said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
The reality is that ESXi "won" the on-premises datacenter war, Hyper-V's entire focus is on Azure/AzureStack now (fighting VMware on a full SDDC stack and Hybrid Cloud). Talking to one large OEM recently Microsoft has pulled all funding for headcounts on competitive Hyper-V trying to displace ESXi on premises. They recognize that the fight has moved on.
From what we see here in the SMB, this seems to be the opposite. There was a time when this seemed true, now it seems the opposite. ESXi lost the war and is now only in the places that haven't updated in a while. It's still lingering, but you don't hear people talking about deploying it again. Sure, because it was so many places and so many shops just never update, it's still around a lot. But we used to discuss it constantly as a key consideration, now it doesn't appear to be any almost anyone's deployment radar.
To say that they won the war, when they appear to have given up, seems odd. In the enterprise I assume that ESXi is still dominating, that's a different game. But in the space where no one is keeping track of deployment numbers, it used to be ESXi that was always being replaced. Now it is Hyper-V.
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@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
But in the space where no one is keeping track of deployment numbers, it used to be ESXi that was always being replaced. Now it is Hyper-V.
It's a misnomer that people don't try to track free installs. There's phone home telemetry for vendor products, download tracking and a host of other voodoo to at least make an attempt at reconciling these data sets. IDC and the like tend to only report revenues, but there are ways to track embedded ESXi free edition at the OEM and distribution level as well as the phone home level etc. Looking at unique downloads of security patches isn't a terrible proxy for active installs that are being maintained. There are also groups like IDC who conduct phone and other survey's in line with statistical models. Vendors who work in the ecosystem and have to make product judgments of where to invest in also do their own private tracking (Backup vendors do some fairly large stuff).
Are you sure you are doing tracking and statistical modeling of this, or are you just reviewing anecdotes and assuming the plural of an anecdote is data? I feel like we were just arguing 3 years ago that Xen going to take over the world.
@scottalanmiller said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
To say that they won the war, when they appear to have given up, seems odd. In the enterprise I assume that ESXi is still dominating, that's a different game. But in the space where no one is keeping track of deployment numbers, it used to be ESXi that was always being replaced. Now it is Hyper-V.
To clarify, the "war" was claiming a major stake in revenue and market share when Hypervisors and Hypervisor management software was still in Hypergrowth and a double-digit CAGR. That war is over (It's single-digit growth at best).
I'd argue It's the other hypervisor vendors that have largely given up in this space...
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Microsoft shifted licensing for datacenter and VMM to per core to drive up costs for server edition and applications and shift customers to hosted providers (making SPLA look a lot cheaper at small volume). They've cut their bounties for partners to deploy Hyper-V, removed partner competitive resources and adjusted field compensation to focus entirely on Azure/AzureStack. Hyper-V as a stand-alone free entity isn't a priority beyond it being a sum of the parts that they want to sell. I'd argue this was a smart move (Stop trying to get a piece out of a market that is in single digit growth which is where revenue is for stand-alone hypervisor management products is today). I would summarize what I've seen of their strategy as "Go to Azure, or go somewhere else". Oracle's pursuing a similar strategy with their cloud (Field Rep's only get paid on cloud consumption).
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RedHat failed to gain any meaningful market share for KVM and their management platform. I'd argue their new focus is more around containers, and PaaS things. Curious if the marriage of this could make IBM cloud a much more diverse beyond IaaS competitor in the field. Note, IBM Cloud has a massive amount of VMware in it (SDDC as a service in the form of VCF popular for the bigger shops). IBM's service heavy leanings and existing customer base put them at the least married to the hypervisor that they de-facto own/control. KVM could become more strategic (Get everyone off LPAR's and VMware) or it could become less strategic (Redhat has a lot of other IP that will work fine on multiple hypervisors and makes plenty better margin). My bets on the later, but we will see.
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Citrix last I heard has been losing market share with XenServer and Xen itself is losing market share in public clouds in general.
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There's a massive long tail of other niche vendors, none of which I"m aware of having 1% market share in Hypervisor management revenues. The Cloud Service Providers (AWS/Microsoft/Google/IBM) are sucking all the air out of the room as public cloud expands. There could be an argument about Hybrid Cloud revenue being a market split between both, but that's still a growing market.
There are other ancillary markets still with a lot of growth that there's still strong battles going on in. There are a few minor players trying to bundle HCI with higher level functions (Containers etc) but I'm seeing more of these falling off analysts and revenue tracking radar than being added on.
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HCI in Hypergrowth, which is mostly being deployed on vSphere. Analysts underestimating the TAM on this one should be a meme. I do think we are past the uniform BBQ phase.
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Cloud Management Products (CMP) - VMware still leading this and outgrowing market but there's a decent bit of diversity and I'm convinced this one will continue to fracture for a while until we see more consolidation. It's worth noting that the CMP's were chosen for app's today will likely Zombie for another 20 years if CA and BMC's continued relevant irrelevance says anything.
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Advanced micro-segmentation and security services - There's a lot of growth but this is currently a small space due to the massive capital requirements of this arms race. I expect security, in general, to end up with fewer players in the long run. Too many vendors cause much confusion on operationalizing them and gaps form.
I have to agree with Jeff Ready. The Unicorn BBQ phase is on. We are not going to see large scale growth of new competitors entering now. I think while HCI has plenty of growth, there is going to be an increasing push to show revenue to maintain investments and this is going to leave a lot fewer players at the dance.
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@StorageNinja Net, net you feel/believe ESXi is a better play for SMB's?
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@StorageNinja said in Why I Feel KVM Is the Easiest HyperVisor to Learn the Basics On:
Not to rub salt in the wound, but this is stuff that ESXi's had for a decade. It's why I hate "feature checklist" or over-focus on 1-2 aspects of a system. It ignores the operational realities of what most people's day 0, or day 2 operations look like.
Rub all you want. it is 100% true.
Scott is in a very narrow world, heavily influenced by his bias.
