Hi Hanis, The docs may be a bit outdated and were originally written in scope for XenServer - thanks for sharing that. It appears you're using KVM, so you should look at the max-limitations and specific recommendations of your KVM distro and NFS vendor.
Majority of NFS datastore (both primary & secondary storage pools) there days are in the 10s of TB in size/range, with even 100s of TBs also seen in production usage. While using NFS, it's equally important to also consider networking aspects such as switching capacity in the (KVM) cluster, the switch & host-nic capabilities such as 1G, 10G, teaming/bond, LACP etc. Regards. ________________________________ From: Muhammad Hanis Irfan Mohd Zaid <hanisirfan.w...@gmail.com> Sent: Thursday, August 1, 2024 07:01 To: users@cloudstack.apache.org <users@cloudstack.apache.org> Subject: Re: Best steps to deploy a working KVM cluster with RHEL Does anyone have thoughts on this? https://docs.cloudstack.apache.org/en/4.19.1.0/conceptsandterminology/choosing_deployment_architecture.html#best-practices Btw after reading that page, it looks like for primary storage the size should be < 6 TB. What about secondary storage? Assumes both are using NFS. On Wed, 31 Jul 2024 at 16:52, Muhammad Hanis Irfan Mohd Zaid < hanisirfan.w...@gmail.com> wrote: > Hi CloudStack community! > > I'm currently testing out a POC with VLAN on our current vSphere cluster. > As someone with a mostly VMware background, setting up each individual KVM > host and adding it to the CS management server is a bit of a hard task for > me. I've hit a few roadblocks and am hoping the community can assist me in > my journey. You can refer to the steps that I took to configure a KVM node > here: https://pastebin.com/MpSUq5mF > > One of the issues that I'm having is that after the setup that I ran on > the pastebin, an error occurred which I'm sure should be resolved with > libvirtd sockets masking, which proved it's not. I've to reboot the host > while the UI is still adding the host so it can be successfully added. > > > > > > > > > > > *2024-07-30 03:56:37,871 INFO [kvm.resource.LibvirtConnection] > (main:null) (logid:) No existing libvirtd connection found. Opening a new > one2024-07-30 03:56:38,109 ERROR [cloud.agent.AgentShell] (main:null) > (logid:) Unable to start > agent:com.cloud.utils.exception.CloudRuntimeException: Failed to connect > socket to '/var/run/libvirt/virtqemud-sock': Connection refused at > com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.configure(LibvirtComputingResource.java:1153) > at com.cloud.agent.Agent.<init>(Agent.java:193) at > com.cloud.agent.AgentShell.launchNewAgent(AgentShell.java:452) at > com.cloud.agent.AgentShell.launchAgentFromClassInfo(AgentShell.java:431) > at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:415) > at com.cloud.agent.AgentShell.start(AgentShell.java:511) at > com.cloud.agent.AgentShell.main(AgentShell.java:541)* > > Another issue that I'm having is that VNC doesn't work the first time. > I've to do these steps to get VNC working for newly added hosts: > > - Need to migrate a VM to a newly added host. > - Try to use VNC (doesn't work). > - Migrate it back out. > - Reboot the new host. > - Migrate the VM back into the new host. > - Try to use VNC (now it works). > > > I humbly request, is there anyone that can share any steps that I can > follow to deploy a POC or even production capable cluster for KVM running > on RHEL-based OS or even Ubuntu. Thanks :) > > >
