Recent content by dlmw89

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    Strange Issue Using Virtio on 10Gb Network Adapters

    If you are using VLANs and don't set your vmbr to vlan-aware, you won't have any connection on your VMs, not just connection issues. Did you get the packet loss only for connections toward the Internet or also on your local network? MTU size certainly can affect internet connectivity...
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    Ingress/egress out the same interface

    Hi, I'm not sure if I fully understand your issue. If you have a VM in VLAN30, on the same node as your VPN GW, which you are using as Default GW for that VM, you can't ping 10.30.0.1, correct? Can you run a tcpdump on the node and also on the 10.30.0.1 to verify if the packets are correctly...
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    Strange Issue Using Virtio on 10Gb Network Adapters

    Hi there, I had recently similar issues as you describe with the exact same switch, the Mikrotik CRS309-1G-8S+IN. I found out that sometimes some SFP modules are getting too hot, that primarily affects SFP+ to RJ45 modules, but sometimes also some SFP+ fiber modules. The reason is because of the...
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    Pfsense DHCP Server and Relay Connectivity Issues

    Implementing CARP is definetely a good idea, but not mandatory for DHCP relay.
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    Proxmox storage config

    I would suggest RAID10, if you don't need that much space, but want performance and reliability in return. As alternative you could use RAID-Z1, basically a RAID 5 with ZFS. In your last post you mentioned "RAID 4", which is a very uncommon RAID level and uses a dedicated parity disk. It's not...
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    Pfsense DHCP Server and Relay Connectivity Issues

    Just to make sure that I correctly understand your setup, you have two independent PFSense firewalls and the VLAN 4 acts as transfer networkso that VMs hosted on both servers are able to reach each other? If you have a PFSense cluster, then for sure you need CARP, because it helps each appliance...
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    Proxmox storage config

    You could passthrough the 4x4TB HDDs and the 2TB SSD to the FreeNAS VM -> Create a RAID10 and use the SSD as either metadata or cache VDEV and use the 250GB SSD as boot drive and to store VMs. However that gives you basically zero redundancy, you might as well use RAID0 for the HDDs and if you...
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    Storage best practices for large setups

    Sure, I'll post details of the solution. ;-)
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    Storage best practices for large setups

    OK, what's a big deployment in your case? Also how fast is the network connection you are using, 25 GbE, 100 GbE or even faster? I have lot's of experience with CEPH but only with a fraction of the capacity needed now, about 30-40TB. With capacity needs which are 20 times more, I'm fairly...
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    Storage best practices for large setups

    Thanks a lot for that tip! Blockbridge sounds really interesting. You also write that you are actually using Blockbridge. Any notable requirements or things to consider when designing a solution with it? Which integration are you using in Proxmox for that storage?
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    Storage best practices for large setups

    Hi there, currently one of my customers plans to migrate an existing VMWare environment to a KVM based solution. The VMWare setup is pretty large with about 2.000 CPU cores, ~50TB memory and ~2.000 TB full-flash SAN storage. Eventhough we would setup several Proxmox clusters, we still need a...
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    Proxmox not booting on AMD Epyc based server

    To answer your questions: - Secure Boot is disabled - UEFI boot is enabled - two SATA SSDs - ZFS - Epycs onboard SATA controller - Software RAID1 via ZFS Yes I know the BIOS is outdated, but to be frank I don't want to upgrade it.
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    Proxmox not booting on AMD Epyc based server

    Hallo there, I have an AMD Epyc based server which is unable to boot ProxmoxVE v7.1-2. (installed from the latest .ISO). I first get a BusyBox CLI from initramfs, after exiting that CLI, I only get a kernel panic, check the screenshot for details. Other linux OSes like Ubuntu 20.04.4 or...
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    [SOLVED] cannot create lvm on top of iscsi volume

    Hello, thank very much for your advice. Due to the fact that I have a storage with dual active controllers, a "lsblk" and also a "pvesm scan iscsi x.x.x.x" showed that there are two identical disks and also one wwnn with two ips... Installing multipath and running multipath -ll solved my...
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    [SOLVED] cannot create lvm on top of iscsi volume

    Hello, thank you for your fast reply. Normally I would use multipath only when the system is aware that there are multiple connections to the target, like a typical FC or FCoE setup. However in my case I'm using LACP bonding on the hosts and also LACP on the storage. Rgardless, I'll try to use...