Comments on: vSphere 4.0 Fault Tolerance (Architecture Diagram, Video and Use Cases) http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/ The deep core of the phenomena Wed, 10 Mar 2010 01:34:45 +0400 http://wordpress.org/?v=2.8.5 hourly 1 By: VMware vSphere Fault Tolerance « My Blog, My Precious. http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5409 VMware vSphere Fault Tolerance « My Blog, My Precious. Tue, 09 Mar 2010 16:02:04 +0000 http://www.hypervizor.com/?p=657#comment-5409 [...] Here is a great little write up from HyperVizor on a very much under-used (IMHO) feature of vSphere, name FT (Fault Tolerance). [...] [...] Here is a great little write up from HyperVizor on a very much under-used (IMHO) feature of vSphere, name FT (Fault Tolerance). [...]

]]> By: Hany Michael http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5315 Hany Michael Thu, 14 Jan 2010 01:04:43 +0000 http://www.hypervizor.com/?p=657#comment-5315 FT is not a disaster recovery solution nor should it ever be considered for that. You may want to check vCenter Site Recovery Manager (SRM) from VMware. It's a very powerful product that can automate your DR solution for VI3.5 & vSphere (check out my tutorials here as well) FT is not a disaster recovery solution nor should it ever be considered for that. You may want to check vCenter Site Recovery Manager (SRM) from VMware. It's a very powerful product that can automate your DR solution for VI3.5 & vSphere (check out my tutorials here as well)

]]> By: MHG http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5314 MHG Thu, 14 Jan 2010 00:53:56 +0000 http://www.hypervizor.com/?p=657#comment-5314 In designing a disaster recovery hotsite with VMware FT what would be our most likely single point of failure and what are the best practice recommendations for such a task? Thanks. In designing a disaster recovery hotsite with VMware FT what would be our most likely single point of failure and what are the best practice recommendations for such a task? Thanks.

]]> By: Hany Michael http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5313 Hany Michael Thu, 14 Jan 2010 00:28:16 +0000 http://www.hypervizor.com/?p=657#comment-5313 No, you just need one copy of the VM on the SAN/NAS. The second instance of the VM lives inside the memory, not the storage. No, you just need one copy of the VM on the SAN/NAS. The second instance of the VM lives inside the memory, not the storage.

]]> By: MHG http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5312 MHG Thu, 14 Jan 2010 00:22:03 +0000 http://www.hypervizor.com/?p=657#comment-5312 So, does FT actually require 2X the SAN / NAS storage for each VM?<br><br>Excerpt ….<br><br>VMware Fault Tolerance provides continuous availability for virtual machines by creating and maintaining a Secondary VM that is identical to, and continuously available to replace, the Primary VM in the event of a failover situation. So, does FT actually require 2X the SAN / NAS storage for each VM?

Excerpt ….

VMware Fault Tolerance provides continuous availability for virtual machines by creating and maintaining a Secondary VM that is identical to, and continuously available to replace, the Primary VM in the event of a failover situation.

]]> By: Hany Michael http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5248 Hany Michael Sun, 22 Nov 2009 17:36:44 +0000 http://www.hypervizor.com/?p=657#comment-5248 Hi Ted,<br><br>Thanks for your comment, and I’m glad you liked the site!<br><br>1 – I’m not sure why you can’t get the sound working, I just injected a normal mp3 file into the video.<br>2 – All my production ESX hosts are definitely physical. The vESX (or the while vSphere In A Box) are not meant for production what so ever. The diagram also is just an illustration/blueprint of how the FT works. My use-cases of course are the ones that I have my production environment.<br>3 – All the SANs these days can tolerate the most severe hardware failures (hardisks through RAID, redundant controllers ..etc), so I wouldn’t call it a single point of failure. If you are talking about DR, then this is another story, and this is why you have the VMware Site Recovery Manager (SRM), where you do have replication between two SANs/Sites and the SRM takes care of the failover/failback process for you. You may want to check my tutorials on SRM as well, I think you’ll like this incredible product and how it can add great value when it comes to DR.<br><br>Regards Hi Ted,

Thanks for your comment, and I’m glad you liked the site!

1 – I’m not sure why you can’t get the sound working, I just injected a normal mp3 file into the video.
2 – All my production ESX hosts are definitely physical. The vESX (or the while vSphere In A Box) are not meant for production what so ever. The diagram also is just an illustration/blueprint of how the FT works. My use-cases of course are the ones that I have my production environment.
3 – All the SANs these days can tolerate the most severe hardware failures (hardisks through RAID, redundant controllers ..etc), so I wouldn’t call it a single point of failure. If you are talking about DR, then this is another story, and this is why you have the VMware Site Recovery Manager (SRM), where you do have replication between two SANs/Sites and the SRM takes care of the failover/failback process for you. You may want to check my tutorials on SRM as well, I think you’ll like this incredible product and how it can add great value when it comes to DR.

Regards

]]> By: Ted Thomas http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-5246 Ted Thomas Sun, 22 Nov 2009 13:51:45 +0000 http://www.hypervizor.com/?p=657#comment-5246 Amazing site! It's almost midnight, I've got to go to bed, and I'm going to lie there thinking about vSphere in a Box!<br><br>Three things:<br>1. I can't get the sound to work on your videos-- tried in FF v3.5.x and IE v8.x... I must be doing something wrong.<br>2. In your diagram, you name the ESX hosts in a way that implies they are vESX, then talk about FT in a production environment. All your production hosts are pESX, right? I didn't actually watch the video on this-- perhaps I missed something...<br>3. Your SAN is still the single point of failure, right? Perhaps you have some active/active replication going on that you don't mention.<br><br>Thanks again! Amazing site! It's almost midnight, I've got to go to bed, and I'm going to lie there thinking about vSphere in a Box!

Three things:
1. I can't get the sound to work on your videos– tried in FF v3.5.x and IE v8.x… I must be doing something wrong.
2. In your diagram, you name the ESX hosts in a way that implies they are vESX, then talk about FT in a production environment. All your production hosts are pESX, right? I didn't actually watch the video on this– perhaps I missed something…
3. Your SAN is still the single point of failure, right? Perhaps you have some active/active replication going on that you don't mention.

Thanks again!

]]> By: Hany Michael http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-4564 Hany Michael Tue, 13 Oct 2009 09:47:59 +0000 http://www.hypervizor.com/?p=657#comment-4564 Sure thing ;) Sure thing ;)

]]> By: Tom Howarth http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-4563 Tom Howarth Tue, 13 Oct 2009 09:34:37 +0000 http://www.hypervizor.com/?p=657#comment-4563 One other issue that FT will not protect against is OS coruption, but that is what your Backups are for ;D One other issue that FT will not protect against is OS coruption, but that is what your Backups are for ;D

]]> By: vNetwork Distributed Switches (vDS) an overview « Virtualised Reality http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/comment-page-1/#comment-4459 vNetwork Distributed Switches (vDS) an overview « Virtualised Reality Sun, 04 Oct 2009 11:46:26 +0000 http://www.hypervizor.com/?p=657#comment-4459 [..] We are now onto the second stage of the VMware vSphere Blogging contest, the winner of week one’s FT subject was Hany Michael from http://www.hypervizor.com/ you can read his post here >> http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/ you can also get the full run down from VMware on the vSphere blog here >> http://blogs.vmware.com/vsphere/ Congratulations to Hany for the win it was well deserved [..] [..] We are now onto the second stage of the VMware vSphere Blogging contest, the winner of week one’s FT subject was Hany Michael from http://www.hypervizor.com/ you can read his post here >> http://www.hypervizor.com/2009/09/vsphere-40-fault-tolerance-architecture-diagram-video-and-use-cases/ you can also get the full run down from VMware on the vSphere blog here >> http://blogs.vmware.com/vsphere/ Congratulations to Hany for the win it was well deserved [..]

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