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Virtual Machine
Posted on 2011-09-06
Pls advise me whether my situation suites wo use VM.
I had more than 10 servers, all are new and I do not planned to migrate them to VM.
I only want to setup new dept and let them use VM where they need quite a huge space of harddisk + Menory with their software. I need to have a failover environment too.
By starting to use this, I might migrate other future in the future, I want to see how stable is the VM environment.
Pls advise me whether to proceed
I had more than 10 servers, all are new and I do not planned to migrate them to VM.
I only want to setup new dept and let them use VM where they need quite a huge space of harddisk + Menory with their software. I need to have a failover environment too.
By starting to use this, I might migrate other future in the future, I want to see how stable is the VM environment.
Pls advise me whether to proceed
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Active today
If they need to use "huge disk space" and "huge memory", there Virtual Machines are probably not the best candidates for Virtualisation or Virtual Machines.
VMware vSphere Hypervisor is the new name for ESXi.
The free download is available from here
http://www.vmware.com/products/vsphere-hypervisor/overview.html
You need to register to download for free.
The latest versions is ESXi 5.0
Here are the documents for ESXi 4.1.
http://www.vmware.com/support/pubs/vs_pages/vsp_pubs_esxi41_i_vc41.html
Getting Started Guide
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_esxi_i_get_start.pdf
Please make sure you server is on the Hardware Compatibility List
http://www.vmware.com/go/hcl
http://www.vmware.com/resources/compatibility/search.php
http://partnerweb.vmware.com/comp_guide2/search.php
and you use a 64 bit server and enable Intel Virtualisation Tecnology also called Intel-VT.
VMware vSphere Hypervisor is the new name for ESXi.
The free download is available from here
http://www.vmware.com/products/vsphere-hypervisor/overview.html
You need to register to download for free.
The latest versions is ESXi 5.0
Here are the documents for ESXi 4.1.
http://www.vmware.com/support/pubs/vs_pages/vsp_pubs_esxi41_i_vc41.html
Getting Started Guide
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_esxi_i_get_start.pdf
Please make sure you server is on the Hardware Compatibility List
http://www.vmware.com/go/hcl
http://www.vmware.com/resources/compatibility/search.php
http://partnerweb.vmware.com/comp_guide2/search.php
and you use a 64 bit server and enable Intel Virtualisation Tecnology also called Intel-VT.
One great reasons to go virtual for other departments is you can with the vCenter product partition off virtual machines with permission like you would file shares.
You could give the new department a user/password that they could only control "their" Virtual servers - and they could "remote control" them with the vmware console software - like having an KVM-over-IP so the IT department won't be bothered by small stuff, it may empower your users.
You could give the new department a user/password that they could only control "their" Virtual servers - and they could "remote control" them with the vmware console software - like having an KVM-over-IP so the IT department won't be bothered by small stuff, it may empower your users.
Attached to show you the requirement, if I would like to convert it to VM environment, how's the diagram should be changed? Failover is a must. What if I did not use VMware but MS hyperV?
ispec.jpg
idiagram.jpg
ispec.jpg
idiagram.jpg
Active today
I would download and evaluate VMware vSphere or Microsoft Hyper-V to test these virtual machines, they are very large and may not be suitable for virtualisation.
VMware Supports failover called HA (High Availability), but you would need to VMware vSphere Hosts, and Shared Storage e.g. SAN or NAS. If a host should fail, the VMs would be restarted automatically on the other hosts, an outage of a few minutes whilst the VMs are restarted.
VMware High Availability - Decrease Downtime and Reduce Risk
http://www.vmware.com/products/high-availability/overview.html
VMware High Availability (HA) Product Briefs
http://www.vmware.com/pdf/ha_datasheet.pdf
http://www.vmware.com/files/pdf/VMware-High-Availability-DS-EN.pdf
VMware Supports failover called HA (High Availability), but you would need to VMware vSphere Hosts, and Shared Storage e.g. SAN or NAS. If a host should fail, the VMs would be restarted automatically on the other hosts, an outage of a few minutes whilst the VMs are restarted.
VMware High Availability - Decrease Downtime and Reduce Risk
http://www.vmware.com/products/high-availability/overview.html
VMware High Availability (HA) Product Briefs
http://www.vmware.com/pdf/ha_datasheet.pdf
http://www.vmware.com/files/pdf/VMware-High-Availability-DS-EN.pdf
Hanccocka, you mean the diagram I attached seems very large scale and VM did not suitable for this environment?
Well you have to have a server running as the virtual host to convert physcial machines to. So you need at least 1 server in testing or going production. Then as you convert physicals to virtuals you can free up more hardware. And the first guy gave you links to the VMware "free" version to test with, OS software licenses are up to you to have for testing.
Based on the comments above you need to research and test the virtual product before you decide or your going to have issues. VMware hypervisor, Hyper-V, XenServer or whatever you need to spend a good deal of time researching and playing with one or each of there free products then decide if you want to use the limited free products in production or scale up to a paid product and with a SAN or NAS.
VMware is very stable and never had any issue with Hyper V either as far as stability. If you want full redundancy and failover it's going to cost a bit for initial deployment but savings overtime by a bit.
Also you can go one step better than HA in VMware and setup FT (fault tolerance) which is no downtime if you loos one server but there are limitations. (both are in paid products)
For 10 servers I wouldn't push to virtualize everything but if your planning on expanding, need easier managment, have cooling or rack space issues, want to consolodate and want better and easier redundancy then yes.
How large of disk space we talking under 2TB? VMware has limitations on maximum virtual disk sizes or raw device maps and it is basically 2TB.
Also converting some physical machines to vm's can be a pain. SQL, Exchange and AD servers. Others are pretty easy.
Also vCenter is a paid product - just so you know.
Once you start using it you will start to really like it and be able to see the advantages first hand, easy to add resources to a vm, vm's boot faster, can use datrecovery to make backups of vm's and restore a whoie virtual server in a few minutes (but vmware DR is also a paid product)
God Speed!
Based on the comments above you need to research and test the virtual product before you decide or your going to have issues. VMware hypervisor, Hyper-V, XenServer or whatever you need to spend a good deal of time researching and playing with one or each of there free products then decide if you want to use the limited free products in production or scale up to a paid product and with a SAN or NAS.
VMware is very stable and never had any issue with Hyper V either as far as stability. If you want full redundancy and failover it's going to cost a bit for initial deployment but savings overtime by a bit.
Also you can go one step better than HA in VMware and setup FT (fault tolerance) which is no downtime if you loos one server but there are limitations. (both are in paid products)
For 10 servers I wouldn't push to virtualize everything but if your planning on expanding, need easier managment, have cooling or rack space issues, want to consolodate and want better and easier redundancy then yes.
How large of disk space we talking under 2TB? VMware has limitations on maximum virtual disk sizes or raw device maps and it is basically 2TB.
Also converting some physical machines to vm's can be a pain. SQL, Exchange and AD servers. Others are pretty easy.
Also vCenter is a paid product - just so you know.
Once you start using it you will start to really like it and be able to see the advantages first hand, easy to add resources to a vm, vm's boot faster, can use datrecovery to make backups of vm's and restore a whoie virtual server in a few minutes (but vmware DR is also a paid product)
God Speed!
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