I need to virtualize a running physical linux (Red Hat Enterprise Linux AS release 3 (Taroon Update 9)) server. The server can not be rebooted for a normal virtualization process. Can it be done on a running server? Ideas on how? Software that supports such a process?
Looks like the Free VMware vCenter Converter Standalone 4.0 will solve my problem
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I'm new to the virtualization world, just trying to install Redis on windows 10
I keep getting this error
virtual machine could not be started because hypervisor is not running
even though virtualization is enabled in bios, windows features and task manager shows the virtualization is enabled
I've no idea what's wrong
my CPU is intel core 2 quad q9650 idk if it matters or it's the right place to ask
I have read a few articles that say that running MongoDB on Windows is a lot slower than Linux. They mention filesystems like XFS is better than NTFS etc, and that it's more designed for Linux.
Reference Why Mongodb performance better on Linux than on Windows?
So my question is, has anyone done any benchmarking of MongoDB performance on Windows (e.g installed directly on the server) vs the same machine (running Windows) but it running a VM (Ubuntu 18.04, XFS) via HyperV?
the same machine (running Windows) but it running a VM (Ubuntu 18.04, XFS) via HyperV
The reason why Linux performs better than Windows for MongoDB is because Linux is more efficient with hardware resources (disk, memory and networking were called out in the post you referenced). Putting Linux in a Windows VM does not eliminate the overhead of Windows that makes it slower for MongoDB. Instead you would have two overheads (Linux AND Windows).
You should also troubleshoot your actual performance problems (per your other post) rather than trying random things like OS changes in the hope that they will make your performance issues go away. The particular issue might go away but chances are you'll run into another one down the road, then what?
I want to clone a AIX LPAR and was wondering if the physical machine could be converted into a VM Image?
I have used the VMWare Converter to create a VM Image of a physical windows box and the documentation states that you can do that for Linux Boxes too.
http://www.vmware.com/products/converter/
I don't see information on AIX or the other UNIXes.
If creating an VM Image of an existing physical AIX box is not feasible is there any easy way to clone the AIX image to another AIX machine.
The primary intent is to avoid re-creating the setup that is already performed for the current AIX box and we want a duplicate environment with the same setup.
VMware supports x86 (and x86_64) architectures for host and guest only. IBM AIX runs on the Power architecture, and VMWare does not do architecture emulation, so what you want does not exist.
If you want to back up/clone your AIX instance to another machine, look for information regarding mksysb and AIX Sysback.
You might want to take a look at the following, but there are no guarantees, and I'm fairly certain running AIX on anything but a Power architecture is still not a reality at this time:
Qemu
PearPC
Based on further reading, i understand that VMWare does not support AIX. The guest OS can primarily be Windows, various distros of LINUX and Mac-OSX. I also see Solaris as a supported guest OS, but i don't see AIX. So i don't think this is possible.
I would have to look at the Virtualization features supported from IBM for this activity.
Thanks,
Manglu
I'm planning to build Linux web development server in virtual machine environment on Windows Virtual PC. As I don't have much experience with installing and configuring Linux web servers, I wanted to ask for some advice:
What Linux distribution do you recommend for such server? I want the virtual server to look like real hosting environment.
Do any pre-configured virtual machines for web development exist out there?
Maybe some instruction and tips on configuring?
My requirements for the server are quite standard: latest versions of Apache, MySQL, PHP, probably Python and Postgre.
Thank you.
UPDATE: OK I think I'll go with Ubuntu Server for this.
You can probably go with Ubuntu. It is easy for a beginner and there is plently of documentation on how to install a LAMP stack and later you can move on to other distros.
If you are looking for pre-configured machines, then you can have a look at VMWare Appliances
For the distribution I would recommend Ubuntu - you can add all the server software you want from their repositories.
For a virtual machine I'd recommend Ubuntu Server Edition JeOS, as that won't have any un-needed software on it.
Debian Lenny - rock solid stability & the most package support
I'm sure you can find some
Use prefork-worker apache, MySQL 5/PHP 5, Postgres 8.4.
There are lots of prebuilt vmware images that you can use. You might also consider looking at something like Amazon EC2 for which there are lots of off the shelf images.
I would also suggest Ubuntu server as a base OS.
Incidentally there are other virtualisation options in case Virtual PC doesn't recognise those prebuilt image formats (I think those formats are more standardised and interoperable these days, but not sure)...e.g. there is vmware, and there is virtualbox.org
Does it need to be in Linux straight away? You can run (Apache et al) XAMPP locally and get it up and running in 5 minutes.
I have basically succumbed to the fact that if you are a hardcore computer user, you will have to reimage your computer every few months because something bad happened. Because of this, I bought imaging software and then really got into imaging. I am now ready to move my development environment completely into a virtual machine so that I can test sites on IIS as though I am on a dev network (and backup these images easily).
The question is, what is the best virtual development platform for a 4 gb laptop? A virtual Vista Business with 3 gb of ram, windows XP sp3 with 3 gb of ram, or Windows Server 2003 with 3 gb of usable ram.
Tools I will need to install:
*sql server 2005 dev edition
*vs 2008 sp1
*tools for silverlight
*and multiple other smaller testing tools
I have tried the following combinations:
Windows XP SP3 on Virtual Server
2005 R2
Windows Vista Business
x64 on Virtual Server 2005 R2
Windows XP on Virtual PC 2007
Windows 2003 on Virtual Server 2005
R2
Windows XP on VMWare Fusion
and the Virtual Server installations where either local or hosted on a server and they all ran fine and about the same speed.
The VMWare Fusion Virtual Machine running under OS X is (seat of the pants) significantly faster than the others. I haven't tested VMWare on Windows to see if it is VMWare or the Hardware making the difference, but it's something worth looking into.
Server 2008, converted to a workstation.
Nothing compares IMO, I've loaded 3 Different OS's in the last 3 months, and I'm set on Server 2008.
I think the biggest question (from my standpoint) is whether or not you'll be doing development (like SharePoint) that requires a server platform. If you anticipate a lot of SharePoint development (or perhaps Exchange, or BizTalk, or another product that requires development be done on a server platform), then go with Windows Server 2003. If not, then I'd probably choose XP, though Vista isn't a bad development platform.
I personally prefer developing on a server platform - however, that opinion might shift if I was developing any sort of WinForms applications, since it would more correctly represent the OS family for the target audience.
I did notice a slight performance decrease going from Server 2003 to Server 2008 that I was not expecting, but that might be more from doing an in-place upgrade instead of starting clean.
From the options you gave, I would personally go with W2k3. You can really trim a server OS down to run lightning-fast, especially when you don't have or get rid of the MS "eye candy".