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  1. TwiX

    [SOLVED] Bandwidth issue for VMs - PVE as a router/fw

    That did the trick ! Thanks a lot
  2. TwiX

    [SOLVED] Bandwidth issue for VMs - PVE as a router/fw

    I'm suspecting a host issue... Using nftables instead of iptables could impact performance ?
  3. TwiX

    [SOLVED] Bandwidth issue for VMs - PVE as a router/fw

    Hi, Weird behavior for a Ubuntu Server 24.04 VM. Download speed ~500 kbps While a debian 12 VM is able to download at full speed 1000 Mbps. On PVE host no bandwidth issue, firewall on (nftables), masquarade, ipv4 forwarding activated. VMs use CPU type = host with numa activated as well...
  4. TwiX

    Proxmox Ceph cluster - mlag switches choice -

    Thanks! I don't think that network downtime is > 1 or 2sec with default parameters. The main question is how ceph handles such network outages. I guess it is OK for corosync and VMs as well. But when this happens, the entire Ceph cluster is down twice for 2 seconds. Moreover, mikrotik stable...
  5. TwiX

    Proxmox Ceph cluster - mlag switches choice -

    Thanks I also worked with FS, Dell OS10 S5248F-ON which seems to be similar to SN2410 you 're using ... Don't recall a preemption behavior on each reboot with them...
  6. TwiX

    Proxmox Ceph cluster - mlag switches choice -

    Hi, I plan to build a new proxmox ceph cluster (3 nodes). LACP 2x25 Gbps for ceph LACP 2x10 Gbps for VMs My question is related to the switches, I want mlag switches indeed. Mikrotik was my first choice due to functionalities and low budget as well. I have 2 CRS310 and have settled a very...
  7. TwiX

    25Gb FS switches

    Thanks, I'd prefer new devices :) my servers have mostly 2+ SFP28 ports so I assume I will go for a device that have at least sfp28 or 100 Gb with breakout cables
  8. TwiX

    25Gb FS switches

    Hi, I usually buy FS modules and these modules work as expected despite low costs. I'm wondering if you guys also use FS switches, 25Gb+ models with mlag. Well known network brands are very (to much) expensive these days ! Pro/cons appreciated ! Thanks !
  9. TwiX

    Ceph - NIC choise

    A good option too could be to create one 4x25 Gb LACP (via 100Gb NIC and breakout cable or 25Gb cards) and work with VLANs....
  10. TwiX

    Ceph - NIC choise

    Thanks, I don't need 2x25 Gb to connect VMs indeed. But with 2x(2 x 25Gb) cards . there is 2x25 left for vms.... My switches can handle MTU 9000/Hash layer3+4 as well
  11. TwiX

    Ceph - NIC choise

    Hi! Wow 12 NVMe per node, no I plan to begin with 4 NVMe (1.6TB) per node. 100 GB breakout cable could be a way for future needs thanks ;) How do you use each interface on your interfaces config file ? Pluging the breakout cable make them appear ?
  12. TwiX

    Ceph - NIC choise

    Hi, I plan to renew servers in order to build a 5 nodes Ceph PVE cluster. I read some topics related to NICs, some users choose to switch to 100 Gb. I was about to buy 2 nics cards with 2x25Gb each per server and split them like this : - LACP 2x25 Gb for vmbr0 - LACP 2x25 Gb for Ceph...
  13. TwiX

    Renew servers - Switching from Intel to AMD Epyc - advice needed

    Hi, yes you're right, as I mentioned I always use CPU type=host. This is the reason why I expected bad situation for all my activated Windows VMs. Indeed, after restoring my VM to my homelab, Windows shows the new cpu model. Fortunately, there is no need to reactivate Windows :)
  14. TwiX

    Renew servers - Switching from Intel to AMD Epyc - advice needed

    Thanks I just made a test with my ryzen 5 5600U (6 cores / 12 threads) homelab root@prox:~# numactl --hardware available: 1 nodes (0) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 node 0 size: 31505 MB node 0 free: 7719 MB node distances: node 0 0: 10 I restored a Windows 2019 server (originaly...
  15. TwiX

    Renew servers - Switching from Intel to AMD Epyc - advice needed

    Hi, I have lots of old Dual CPUs Intel servers and I plan to renew them. Seems that AMD Epyc are now competitive (costs and performance). What I'm about to build : 4 x Supermicro nodes, with per node : 1 x AMD Epyc 9534 (64 cores/128 threads) 512 GB RAM 2 basic SSD with RAID1 for OS 4 nvme...
  16. TwiX

    Purging a datastore

    If I want to restart with a clean datatsore, can I : cd /zfs_datastore rm -rf * or should I destroy the datastore and recreate it ?