I would say there is no "best" virtualization platform for home use if you want to use it as a tool to learn virtualization; rather, you should learn whatever you think you need to learn for what systems you're most likely to encounter.

That said, for a pure lab environment, ESXi allows "nested" virtualization, while Hyper-V does not. What that means is that in Hyper-V you can only have two tiers: bare metal and virtual; while in ESXi you can have multiple levels of VMs tiered on top of one another. In production this is something you would NEVER do, but for learning it's very easy to clone an entire "ready made" environment with multiple machines and have several of them running.

Conversely, with a Hyper-V environment you can experiment with some advanced features that would cost money to unlock in VMWare, like failover clustering, VM level backups, and virtual SAN.

So I've got my SR reattached, just need to figure out how to import the VM's from the SR.

@halizard Awesome, thank you and your group a crap ton for me.

Gives me stuff to work on!

@Dashrender said:

@dafyre said:

@Dashrender said:

Why are we even talking about this POS?

Because you can?

because we can waste our time? I guess.

We're not wasting time. We're waiting for replies to other important topics. 🙂

@dafyre said:

@scottalanmiller said:

@anonymous said:

@DustinB3403 With CentOS I just install and go....

CentOS is super easy for general use. Ubuntu is very complex and hard for general use. They are not comparable.

It depends on what you are used to dealing with. I don't have ti disable apparmor to diagnose issues in Ubuntu. I do have to disable SELinux to test issues in the CentOS world. I am still more comfortable running a Ubuntu server than I am a CentOS box, but I haven't come up against anything a quick google usually doesn't fix.

The nice thing about SELinux is if you check /var/messages it usually tells you exactly what you need to do. Same on Fedora, the SELinux troubleshooting gui will pretty much give you commands to copy and paste.

@coliver said:

@scottalanmiller said:

Never found one that I liked.

Never found a ticketing system you liked or never found an open source ticketing system you liked?

Either, i suppose. But specifically an open source ticket system that runs on Linux.

Wow, very sad.

@Dashrender said:

@scottalanmiller said:

@Dashrender said:

@scottalanmiller said:

Yup, could have easily set up an email account. Text leaves traces too.

Sure, but if names aren't included, you have to make a lot of assumptions to lay blame on the non owner of the device.

how would email be any different?

that's a great point, I suppose it really wouldn't be. Just use gmail or whatever free service you can, only access it away from the house. Short of being caught red handed, deniability ensues.

Exactly. Just don't put your name in the email address 🙂

IT Communities at their finest!

@Dashrender Okay let's retake a clean example: one VM in a SR, with one 4GB VDI:

# lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [4.02 GiB] inherit

After first snapshot:

# lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-38e2156f-da74-4edb-ac83-56fda54cfe55' [1.75 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [4.02 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-f18856a5-039b-4d84-bf6c-a259d0f49a9e' [8.00 MiB] inherit

After second snapshot:

# lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-38e2156f-da74-4edb-ac83-56fda54cfe55' [1.75 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-f18856a5-039b-4d84-bf6c-a259d0f49a9e' [8.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [4.02 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-68408f33-5a69-4b3b-afdd-a2cfabcad9ba' [8.00 MiB] inherit

As you can see, we got a second 8 MiB logical volume, nothing more (base parent and active VDI doesn't change).

Let's remove the latest snapshot:

# lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-38e2156f-da74-4edb-ac83-56fda54cfe55' [1.75 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-f18856a5-039b-4d84-bf6c-a259d0f49a9e' [8.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [4.02 GiB] inherit

It removes the previously created volume, as expected. Now, let's remove the initial snapshot. Durin few seconds, we'll have this:

lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-38e2156f-da74-4edb-ac83-56fda54cfe55' [1.75 GiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [8.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/leaf_770ceeac-e97e-4e05-b9c5-892b97b9d16e_38e2156f-da74-4edb-ac83-56fda54cfe55' [4.00 MiB] inherit

But it will be automatically "garbage collected" when the system will see than the chain doesn't have any snapshot in it (after few seconds in this case):

# lvscan inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/MGT' [4.00 MiB] inherit inactive '/dev/VG_XenStorage-e27c48de-509f-3fec-d627-7f348062ab1a/VHD-770ceeac-e97e-4e05-b9c5-892b97b9d16e' [4.02 GiB] inherit

We are back to the initial situation.

Sadly this didn't work for me 😞

@DustinB3403 said:

I'm making a new topic as I want to pick your brain on this in the SMB space.

Okay

And I just checked to make sure no new plugin has been developed. It has not.

@johnhooks said:

@scottalanmiller said:

@johnhooks said:

You don't think $5,000 a year for 100 nodes is reasonable?

Not so much, no. When you consider that the assumption is that many of those nodes are $5/mo to operate. That could be nearly 10% of your entire server budget!

lol plus thats the base price with only 30 days of support and no SLA ....

Exactly. Those prices get a bit crazy. $5/year/server would make a lot more sense. There are many cases where I would pay more for Ansible than I would for the server itself!

@johnhooks said:

They were located in the BIOS so an image would have no affect. The BIOS loaded the drivers even if you reimaged.

Exactly. Security requires trust. There is no means to being reasonably secure and using Lenovo. The two simply can't go together.

@christophergault said:

@RamblingBiped I have tried that many times, maybe the build was updated recently to fix this issue...

Definitely use the latest build for the best results. The installer should be running from CentOS, so the issue would likely be there.

@johnhooks Ill try that, thanks!

Yes, if the just didn't mention it, I would assume that I was going to be using GIT to keep it updated. It's only because they so strongly state otherwise that I looked at the repos.

@johnhooks said:

I think these are just limitations of the templates. If you use the Other install media, I don't think you have these limitations. You can also create your own templates.

That would explain why I was not aware of them. I nearly always use other media.