Starwind AMA Ask Me Anything April 26 10am - 12pm EST
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@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
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@LaMerk said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
We're currently working on adding a support of Swordfish API. StarWind Swordfish plugin should be released shortly, so please stay tuned!
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@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
More importantly, it's all active, regardless of size. So four nodes is active/active/active/active.
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@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes its self?
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@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
Is there a non-powershell interface for the Windows version?
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@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
Is there a non-powershell interface for the Windows version?
Yes, the GUI
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@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
Is there a non-powershell interface for the Windows version?
Yes, the GUI
We have a few options here: GUI, Web-GUI, Swordfish plugin (soon), SMI-S and VVols.
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@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
Is there a non-powershell interface for the Windows version?
If you are on the free version it is a GUI for 30 days. If you are on the paid version, it is a GUI for forever.
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@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes it's self?
Instead of forcing people to use a 3rd host as withness we use a hearbeat channel (preferably set up on a separate physical NIC to avoid a SPOF) that constantly has the nodes pinging each other. This way if the synchronization channel fails the HA device that is second by priority will be disabled to avoid split-brain.
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@travisdh1 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Apparently I'm going to be starting with the unusual questions. In your V2V Converter, you have the option to convert to Microsoft VHD, why the Microsoft VHD and not just VHD?
Thaks for great question. It should actually work with XEN as well.
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@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes it's self?
Instead of forcing people to use a 3rd host as withness we use a hearbeat channel (preferably set up on a separate physical NIC to avoid a SPOF) that constantly has the nodes pinging each other. This way if the synchronization channel fails the HA device that is second by priority will be disabled to avoid split-brain.
What if it fails due to the primary hosts failure? Sudden power outage etc. In a two node setup would both nodes then go down?
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@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@scottalanmiller said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Will we be able to manage all of the Starwind VSA products from the Windows Powershell? Or Is the PowerShell module only made to work on Windows Starwind setups?
Or even better, what about a non-PowerShell interface for the others?
Is there a non-powershell interface for the Windows version?
If you are on the free version it is a GUI for 30 days. If you are on the paid version, it is a GUI for forever (plus the option of Powershell).
FTFY
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@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes it's self?
Instead of forcing people to use a 3rd host as withness we use a hearbeat channel (preferably set up on a separate physical NIC to avoid a SPOF) that constantly has the nodes pinging each other. This way if the synchronization channel fails the HA device that is second by priority will be disabled to avoid split-brain.
What if it fails due to the primary hosts failure? Sudden power outage etc. In a two node setup would both nodes then go down?
Both hosts are constantly in sync,and each VM has access to it's virtual disk on both hosts. If one of the node fails, then the cluster just continues working if it's VMware FT or the VMs failover and everything continues working in case of Hyper-V or VMware HA.
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@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes it's self?
Instead of forcing people to use a 3rd host as withness we use a hearbeat channel (preferably set up on a separate physical NIC to avoid a SPOF) that constantly has the nodes pinging each other. This way if the synchronization channel fails the HA device that is second by priority will be disabled to avoid split-brain.
What if it fails due to the primary hosts failure? Sudden power outage etc. In a two node setup would both nodes then go down?
Both hosts are constantly in sync,and each VM has access to it's virtual disk on both hosts. If one of the node fails, then the cluster just continues working if it's VMware FT or the VMs failover and everything continues working in case of Hyper-V or VMware HA.
How would we configure the iSCSI connection in Hyper-V for this? Using MPIO?
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@ABykovskyi said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@travisdh1 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Apparently I'm going to be starting with the unusual questions. In your V2V Converter, you have the option to convert to Microsoft VHD, why the Microsoft VHD and not just VHD?
Thaks for great question. It should actually work with XEN as well.
Looks like we'll have to double check this and then make some changes to the V2V to reflect it supports both.
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@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@coliver said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@DustinB3403 said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@TheDeepStorage said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Is the Two-Node setup for Starwind an Active/Active setup or active/passive?
StarWind's two-node setup is an active-active scenario.
With this setup is there any risk of a split brain scenario occurring? If so what protections are built in to ensure that the system normalizes it's self?
Instead of forcing people to use a 3rd host as withness we use a hearbeat channel (preferably set up on a separate physical NIC to avoid a SPOF) that constantly has the nodes pinging each other. This way if the synchronization channel fails the HA device that is second by priority will be disabled to avoid split-brain.
What if it fails due to the primary hosts failure? Sudden power outage etc. In a two node setup would both nodes then go down?
Both hosts are constantly in sync,and each VM has access to it's virtual disk on both hosts. If one of the node fails, then the cluster just continues working if it's VMware FT or the VMs failover and everything continues working in case of Hyper-V or VMware HA.
How would we configure the iSCSI connection in Hyper-V for this? Using MPIO?
Exactly. We actually have a lot of guidance to configuring MPIO properly on our webiste. Here is a Knowledge Base article with details: https://knowledgebase.starwindsoftware.com/guidance/how-to-configure-mpio-with-starwind-correctly/
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So two nodes is the small end for a hyperconverged appliance (or one that you build yourself with hypervisor + Starwind VSAN), I think I'm clear there. But what about upper limits? A lot of hyperconverged appliances cap out around ten or twelve nodes in a single cluster. What are the limites from the Starwind side if I'm building Hyper-V or VMware clusters? Is it the same and a Starwind limitation? Do I just get to go to the limit of the hypervisor?
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@Reid-Cooper said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
So two nodes is the small end for a hyperconverged appliance (or one that you build yourself with hypervisor + Starwind VSAN), I think I'm clear there. But what about upper limits? A lot of hyperconverged appliances cap out around ten or twelve nodes in a single cluster. What are the limites from the Starwind side if I'm building Hyper-V or VMware clusters? Is it the same and a Starwind limitation? Do I just get to go to the limit of the hypervisor?
With VMware we can push it to the limit of 64 nodes using VVols. With Hyper-V, in theory, StarWind handles 64 nodes just fine, but the best practises of Microsoft suggest 1 CSV per node, which means 64 CSVs, which means one very sad IT admin with a twitching eye and chronic headaches.
The short version would be: from our side, the hypervisor is the limit. -
Are there plans to continue building the Powershell library, or will you be moving towards a cross-platform API?
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@dafyre said in Starwind AMA Ask Me Anything April 26 10am - 12pm EST:
Are there plans to continue building the Powershell library, or will you be moving towards a cross-platform API?
We expect to release regular updates of Poweshell library.
