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  1. PVE 7 on ZFS: put root FS on two HDD or on two SSD?

    I have a server, which equipped with 2 x 2Tb HDD and 2 х 512 Gb SSD disks. I'd like to install PVE 7.0.2 on it, and plan to create mirrors out of these disks. So, I really doubt, if I should install PVE (OS) itself on SSD ZFS mirror or on HDD ZFS mirror? Both approaches are appears to have its...
  2. Is it possible: PVE + shared storage + HA + replication to remote site?

    All of my previous experience of PVE setups related to stand-alone hosts, and PVE is perfect for that. Now we want to connect shared SAN storage to several PVE hosts to have HA available. SAN (we rent it) seems to be FC connected. At the same time we want to have the same VMs copied...
  3. Use FC storage in PVE cluster

    I used to use standalone PVE hosts, with local attached disks. Nice and tiny setups :) Now I have a chance to set up PVE cluster with shared storage. It involves some like 2 groups each consists of "6 hosts and 1 SAN". All hardware to be rented so we can make some adjustments at this point...
  4. 6 to 7: switch to bullseye repo forces server to delete many packages?

    I have handy server I can play with (but not to kill it). Its /etc/apt/sources.list looks this way: deb http://ftp.debian.org/debian buster main non-free contrib deb http://ftp.debian.org/debian buster-updates main non-free contrib deb http://security.debian.org buster/updates main non-free...
  5. Nginx at Proxmox to save IP

    A friend of mine have set up a host for webdev purpuses and after my advice used fresh PVE instead of initialluy choosen Hyper-V. The host is at datacenter, and they provided only one IPv4 address, and renting more is a bit tricky there. So, my friend installed nginx at Proxmox host itself...
  6. Know list of VMs with its disk sizes?

    Dealing with several PVE hosts, all of them are standalone, I want to know disk of each VM in some algorithically easy way. The problem that, some of VMs are raw or qcow2 files, some are stored in zfs volumes. I suspect I can only scan /etc/pve/qemu-server/*.conf files for virtio/scsi/ide/sata...
  7. Reason PVE host keep write data to disk?

    I have single PVE server (6.4, community repo) and I noticed It has constant iodelay > 0 even when host is almost idle. The host is very low loaded, so not expected to see that. There is single m2 NVMe disk on board (Samsung 970 EVO Plus) installed mostly as a test disk, and couple of Intel 545...
  8. CPU emulation: change cache size?

    I got a bit unusual question related to virtual CPU as it seen in VM. I need to copy VM with some rare and licensed software from old PVE host (4.x, and old hardware) into new one (PVE 6.2, much newer hardware). The software itself bound its license to id string consists of CPU info bits...
  9. pve-zfsync and MySQL inside the synced VM

    I try to use pve-zfsync to replicate a VM, and so far it looks quite good. The VM itself is a Cenos 7 with nginx/apache/mysql web site server. My concern is, while data VM disks will be replicated nicely, the data in the VM's RAM (mostly MySQL data) won't be transferred so the replicated VM may...
  10. pve-zsync: recovering VM?

    Planning to implement pve-zsync to do regular (routine) off-site VM replication, and it looks like I understand all my backup steps but can’t figure out the recovering steps: It says, first, I need to disable the replication for VM. Ok, that's understandable. Then, I can “send the VM or...
  11. [SOLVED] Watchdog rebooted server at random moment - how to debug?

    I use Supermicro server with PVE 6.2. I did the watchdog setup this way: /etc/default/pve-ha-manager: WATCHDOG_MODULE=ipmi_watchdog /etc/modprobe.d/ipmi_watchdog.conf: options ipmi_watchdog action=power_cycle panic_wdt_timeout=10 /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet...
  12. Get IP of VM from script on PVE host (PVE 6.2-6.3)

    I have several KVM VMs on PVE host (both windows and linux guests), all VMs are have qemu-agent installed, and PVE web interface show VM’s IPs. But I can’t find a way to get these IPs from script run on PVE host. Please advice! Should be some API call or some way to poll qemu-agent I suppose...
  13. OpenZFS 2.0?

    Just read in the news that OpenZFS is introduced. Any plans to use it in the PVE 6.4 (?) or maybe it will be possible to use it as it be delivered over Debian upgrades?
  14. Windows VM NIC disconnects and how to fix it

    As we moved to PVE 6.2 (just several hosts, not huge install), we noticed that Windows server VMs we used to run on PVE are to see sudden NIC stop working. The fix is really simple: set NIC to not connected (no link) in PVE web interface, apply changes, the connect it again and apply again - all...
  15. Zabbix monitor whole ethernet port usage

    As I try to gather PVE node stats with Zabbix I found I can not get real port usage for physical port that faces the WAN link. Vmbr0 stats seems to show only own node usage, but I need whole link usage (own node plus all of VMs usage). Silly question I know but can’t fond a way. Vmbr0 vs switch...
  16. Linux IPSec hardware acceleration in VM?

    I need to set up VM to be used as router which will also do IPSec encryption. Since new CPUs are all crypto acceleration capable, I really wonder which is the best VM hardware I should choose to have it employed. I suspect I’ll set up CPU of “host” type, but what about VM NICs? If virtio NIC...
  17. PBS to use existing PVE https certificates?

    It is so ordinary question but I can't find a 'official' way to implement it: I installed PBS on existing PVE server, and would like to use LE's https certificate o PBS web interface. I was quite surprised there is still no web-based certificate acquire interface but I understand this is not...
  18. Which MegaRAID is known to support TRIM?

    Used to rent servers (only a few, not that many) in datacenter, all under PVE and run perfectly well. Nowadays it is good choice to rent SSDs to put VMs on, and so we choose hardware raid with bbu to create mirrors out of SSDs (it is used to be megaraids) but... I never can find a wayto check...
  19. New to PMG, please advice on user list!

    Hello, I try to set up PMG as a mail filtering system in front of my mail server (which is Exim+dovecot based). My Exim uses domain and user lists stored at Postgres (no LDAP), and I really wonder if PMG can get mail lists from Postgres (or via some kind of HTTP API requests) from my server...
  20. Backup to sshfs or nfs?

    I have several hosts with really dated PVE versions (2.1 and 4.3, 4.4). Now I have several new servers to put Proxmox on and about to copy VMs to these new hosts. VMs are quite big and I can’t do that at days, only and nights. But I have a gigabit network between hosts so I really wonder if I...

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