Setup 3 node cluster
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@scottalanmiller said in Setup 3 node cluster:
Is the XO HC solution ready to be tested?
Good point, @matthewaroth35, pm @olivier, if you sweet talk him, he might give you access to the HA they're working on.
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@matthewaroth35 said in Setup 3 node cluster:
Ok. I have 3 hp g7 same model. I want to set them all up as a cluster. same way scale does.
What Scale does is highly unique. What you have is a modified hypervisor that knows about the storage, a customer storage layer that is very advanced and designed specifically for this use and a then a customer web management layer that controls it all for you. That's not something you can build at home.
You can use VMware + VSAN (very expensive) or Hyper-V + StarWind (not cheap) to do this without some crazy complication. But I'm assuming that for an "old cluster" you aren't looking for an investment. If you were, you'd just buy more Scale gear.
So you are going to be looking at free. And probably Xen or KVM + CEPH is going to do that and that's not trivial, at all.
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@scottalanmiller said in Setup 3 node cluster:
Hyper-V + StarWind (not cheap)
HyperV with Virtual Machine Replication might be a good fit.
It's completely free, minimal downtime, but not HA. (No Shared Storage Needed)
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And it should be noted that none of these solutions address things like the single pane of glass management, automatic load balancing and such of Scale.
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Basically this is a testing environment just to play around
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but if I needed to spin up something to put in production I could ... I really dont know what i want to do with this thing. I just want to do it.. LOL
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XenServer with Xen Orchestra using Continuous Replication would be a good fit.also.
Completely free, minimal downtime, but not HA. (No Shared Storage Needed)
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Ok.. i have to give it a shot and play around with things. LOL. BOY AND OOUR TOYS
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@matthewaroth35 said in Setup 3 node cluster:
Ok.. i have to give it a shot and play around with things. LOL. BOY AND OOUR TOYS
Lots of good learning to be had here. Just set expectations accordingly and you will be all set.
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@matthewaroth35 said in Setup 3 node cluster:
Ok. I have 3 hp g7 same model. I want to set them all up as a cluster. same way scale does.
What do those servers have for storage in them?
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Yes I want to be able to spin up. whatever i need. File server. vm.. Play with different environments .. nextcloud. etc. and just have at it. !
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@matthewaroth35 said in Setup 3 node cluster:
Yes I want to be able to spin up. whatever i need. File server. vm.. Play with different environments .. nextcloud. etc. and just have at it. !
Three nodes with local storage might be all that you need. Clustering will take it from simple to super complicated. Local storage on them with XenServer and XenOrchestra will be very simple.
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@matthewaroth35 said in Setup 3 node cluster:
Well i have scale 3 node cluster already .. I want to build another one like scale out of my old hp g7 servers
Always great to get to "meet" our customers! Hope that it is working well for you. Sounds promising that you want more Scale functionality
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@scottalanmiller said in Setup 3 node cluster:
@travisdh1 said in Setup 3 node cluster:
I think XenServer will do this with a 3 node cluster much easier, but I've never actually tested it as I've never had 3 nodes available at once.
Same issues, you'll need CEPH, StarWind or something similar.
I used Gluster. But I'm doing images because I wanted the internal snapshot functions. I have a Gluster brick replicated between two nodes. Disks are replicated that way.
However, I'm going to be buying a Scale system prob beginning of 2017 so I won't have that running for long. In hindsight, I'd do Gluster in the VM. Much easier to manage a service with corosync and pacemaker in a VM than on the host.
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@stacksofplates said in Setup 3 node cluster:
@scottalanmiller said in Setup 3 node cluster:
@travisdh1 said in Setup 3 node cluster:
I think XenServer will do this with a 3 node cluster much easier, but I've never actually tested it as I've never had 3 nodes available at once.
Same issues, you'll need CEPH, StarWind or something similar.
I used Gluster. But I'm doing images because I wanted the internal snapshot functions. I have a Gluster brick replicated between two nodes. Disks are replicated that way.
However, I'm going to be buying a Scale system prob beginning of 2017 so I won't have that running for long. In hindsight, I'd do Gluster in the VM. Much easier to manage a service with corosync and pacemaker in a VM than on the host.
More flexible, too. You can move it around.
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Storage? Local? SAN? Cloud? Fairy dust?
The details......
Backend connectivity, Fiber? iSCSI? Wireless? -
@scottalanmiller said in Setup 3 node cluster:
@matthewaroth35 said in Setup 3 node cluster:
Ok. I have 3 hp g7 same model. I want to set them all up as a cluster. same way scale does.
What Scale does is highly unique. What you have is a modified hypervisor that knows about the storage, a customer storage layer that is very advanced and designed specifically for this use and a then a customer web management layer that controls it all for you. That's not something you can build at home.
You can use VMware + VSAN (very expensive) or Hyper-V + StarWind (not cheap) to do this without some crazy complication. But I'm assuming that for an "old cluster" you aren't looking for an investment. If you were, you'd just buy more Scale gear.
So you are going to be looking at free. And probably Xen or KVM + CEPH is going to do that and that's not trivial, at all.
We'll try to fix that immediately after our V8 R5 release after NY giving away unrestricted StarWind vSAN for free. Switching to appliance business ;))
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@KOOLER Your company's business model is changing?
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No just want to play around. and learn new things.
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@scottalanmiller Thank you very much for the mention.
Our Virtual SAN can support 3-way synchronous replication with Hyper-V, VMware or Xen. As mentioned prior, we will install on the hosts providing hyper-convergence and HA between the nodes. We do not require a switch for 3-nodes as we will recommend that they are directly connected to each other. It's a simple and cost effective way to accomplish the clustering that you are looking for. If you think that would be of interest you can always try a 30-day trial here: https://www.starwindsoftware.com/starwind-virtual-san
But if you have any questions please feel free to ask away!
