@ertanerbek
@LnxBil
@guletz
Ok so everyone was mentioning ARC cache at 8GB is not enough so I raised it to 20GB. I still have the same problem when doing a 5gigabyte file copy from my SSDs to my spinners. I was hovering at 16GB free ram in the Proxmox user interface for my pve server.
I also...
@ertanerbek
@LnxBil
Ok so there were a lot of suggestions:
I disabled Discard on all the drives connected to the VM in question and this resulted in no improvement - 1. Disable discard on GUEST config.
I checked "zfs get compression" and all my drives have compression enabled already - 2. You...
@guletz
I changed the scheduler only on my mirrored spinning drives to none and it had no effect on my problem. Do I need to do anything to force this change to immediately take effect like restart a service?
root@pve1:~# echo "none" > /sys/block/sdc/queue/scheduler
root@pve1:~# echo "none" >...
@guletz So I was researching how to set the zfs_vdev_schedule = none and it looks like it is already set to none? Please see command below which returned none:
cat /sys/block/sda/queue/scheduler
[mq-deadline] none
I read about it here: https://pve.proxmox.com/wiki/IO_Scheduler
Is the reason that it gets laggy because ZFS has more overhead/works differently? Because when I passed through the drives to Windows Server and formatted NTFS there was no problem.
I never setup SLOG device before. I already use the two SSDs as Raid 1 ZFS for the Proxmox OS and VMs so all the...
@guletz - I have attached the results:
1) I shutdown the server, started it up waited about 8 minutes.
2) Ran arc_summary as root file 1-afterreboot.txt
3) Copied 5 gig ISO from Raid 1 spinning rust zfs drives to SSD, then renamed iso and copied from ssd zfs to raid 1 spinning rust -...
Windows Server 2016 has 4-8GB assigned with balloon turned on. The other two containers have 3GB and 512MB assigned respectively. My PVE system is currently using 25GB out of 31.32GB.
Windows VM .conf:
agent: 1
balloon: 4096
bios: ovmf
boot: cdn
bootdisk: scsi0
cores: 3
cpu: host
efidisk0...
Proxmox 6.0-7 used for 1 Windows 2016 Server VM and a couple of Ubuntu containers
Intel Core i7-6700K
32 GB non ecc ram.
2x ZFS 128K block size mirrored 960GB Seagate Nytro SSDs - OS install and VMs/containers
2x ZFS 128K block size mirrored 8TB HGST 7200RPM NAS Drives - 4TB File storage drive...
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