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13525 discussions

Re: Proxmox and NetApp NFS volumes
by tmac 08 Nov '25

08 Nov '25

https://docs.netapp.com/us-en/netapp-solutions-virtualization/proxmox/index… Sent from Gmail Mobile. On Fri, Nov 7, 2025 at 7:52 AM Florian Schmid via toasters < toasters(a)lists.teaparty.net> wrote: > > > > ---------- Forwarded message ---------- > From: Florian Schmid <fschmid(a)ubimet.com> > To: toasters <toasters(a)teaparty.net> > Cc: > Bcc: > Date: Fri, 7 Nov 2025 12:52:00 +0000 > Subject: Proxmox and NetApp NFS volumes > Hello, > > we are moving to Proxmox now and I would need some help from you. > > In the past, I have always used NFSv3, because in our KVM environment, we > had issues with NFSv4.1 and head fail-overs -> VMs got paused > I think also VMware had such issues. Problem I think is that NFSv4.1 is > stateful and on a head fail-over, this state got lost. > > I'm on 9.14.1. > > As NFSv3 is quite old and Proxmox is using a newer kernel, I wanted to > ask, if someone of you have experience with Proxmox and NFS volumes from > NetApp. > > Do you use special mount options? > Is NFSv4.2 working fine with head fail-overs -> VMs are not pausing or > don't even notice it? > We have 25 Gbit network interfaces as a bond to our NetApp, are here any > special options to configure? > Are you using on VM disks "cache=none" or something different? > > Unfortunately, Proxmox has not much experience with NetApp either, so that > I hope someone from you can help me here to create a good, fast and stable > setup. > > This is how a mount point looks like with default options from Proxmox and > NFSv3: > *nfs-root-01:/pve_DC_nfs_root_01 /mnt/pve/nfs-v3-root-01 nfs > rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.4.3,mountvers=3,mountport=635,mountproto=udp,local_lock=none,addr=172.16.4.3 > 0 0* > > This is from our old virtualization oVirt: > *nfs-root-01:/oVirt_DC_nfs_root_01 > /rhev/data-center/mnt/nfs-root-01:_oVirt__DC__nfs__root__01 nfs > rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,soft,nolock,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=172.16.4.3,mountvers=3,mountport=635,mountproto=udp,local_lock=all,addr=172.16.4.3 > 0 0* > > > - oVirt was using soft, but this I think, I shouldn't use on Proxmox > and instead use hard. oVirt had a special watchdog for this. > > > Best regards, > Florian > > > > > ---------- Forwarded message ---------- > From: Florian Schmid via toasters <toasters(a)lists.teaparty.net> > To: toasters <toasters(a)teaparty.net> > Cc: > Bcc: > Date: Fri, 7 Nov 2025 12:52:00 +0000 > Subject: Proxmox and NetApp NFS volumes > _______________________________________________ > toasters mailing list -- toasters(a)lists.teaparty.net > To unsubscribe send an email to toasters-leave(a)lists.teaparty.net >

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Proxmox and NetApp NFS volumes
by Florian Schmid 07 Nov '25

07 Nov '25

Hello, we are moving to Proxmox now and I would need some help from you. In the past, I have always used NFSv3, because in our KVM environment, we had issues with NFSv4.1 and head fail-overs -> VMs got paused I think also VMware had such issues. Problem I think is that NFSv4.1 is stateful and on a head fail-over, this state got lost. I'm on 9.14.1. As NFSv3 is quite old and Proxmox is using a newer kernel, I wanted to ask, if someone of you have experience with Proxmox and NFS volumes from NetApp. Do you use special mount options? Is NFSv4.2 working fine with head fail-overs -> VMs are not pausing or don't even notice it? We have 25 Gbit network interfaces as a bond to our NetApp, are here any special options to configure? Are you using on VM disks "cache=none" or something different? Unfortunately, Proxmox has not much experience with NetApp either, so that I hope someone from you can help me here to create a good, fast and stable setup. This is how a mount point looks like with default options from Proxmox and NFSv3: nfs-root-01:/pve_DC_nfs_root_01 /mnt/pve/nfs-v3-root-01 nfs rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.4.3,mountvers=3,mountport=635,mountproto=udp,local_lock=none,addr=172.16.4.3 0 0 This is from our old virtualization oVirt: nfs-root-01:/oVirt_DC_nfs_root_01 /rhev/data-center/mnt/nfs-root-01:_oVirt__DC__nfs__root__01 nfs rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,soft,nolock,nosharecache,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=172.16.4.3,mountvers=3,mountport=635,mountproto=udp,local_lock=all,addr=172.16.4.3 0 0 * oVirt was using soft, but this I think, I shouldn't use on Proxmox and instead use hard. oVirt had a special watchdog for this. Best regards, Florian

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03 Nov '25

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31 Oct '25

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22 Oct '25

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19 Oct '25

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22 Aug '25

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by nelsonfellows551＠gmail.com 22 Aug '25

22 Aug '25

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Re: Weird mass delete of files in a volume with ONTAP ASYNC-Delete
by John Stoffel 22 Jul '25

22 Jul '25

>>>>> "Paul" == Paul Letta via toasters <toasters(a)lists.teaparty.net> writes: > From: Paul Letta <letta(a)jlab.org> > To: toasters <toasters(a)teaparty.net> > Date: Tue, 15 Jul 2025 20:57:00 +0000 > Subject: Weird mass delete of files in a volume with ONTAP ASYNC-Delete > Hi Toasters. > I’m running 9.14.1P13. > I used the ONTAP ASYNC-Delete feature from the GUI (storage – > Volumes – click on a volume – Click on File system – click on > Explorer) to delete a few top level folders in a volume. That > worked fine. I saw the background job running and they finished > fine. > I needed to delete much more. So I clicked on the trash can for one > of the folders, clicked ok to start the delete. Why not do the delete from a CIFS share instead? > Then I clicked elsewhere in the GUI and clicked back to File-System, > Explorer – and clicked on the trash can for a different folder. Hmm... I wonder if you left something selected elsewhere, or even up a level when you started one of the deletes? > I did this maybe 6 or 7 times. When I check the jobs in ONTAP, I > saw them all running. > But then as I waited, I saw a lot more space being used by snapshots > (via the df command) than the 6 or 7 folders I wanted to delete. > At this point, only 1 ASYNC-Delete job was still running, so I canceled it. > When I look at the live file system.. I see almost all folders (not > just the 6 or 7 I clicked) have massive files deleted. Luckily for > me, this volume was just a filesystem that barely changes.. so I > could snapshot restore from a few hours before, and all was well. Whew! Love snapshots. > Now I’m scared to death of that file-explore page in the ONTAP GUI. > I am the only administrator, so no one else could have been logged > on to ONTAP. The pattern of deleted files makes a delete coming > from a CIFS client very unlikely. There is no NFS export to this > volume. I've never used it, but I'd probably not ever use it unless I had a problem doing the deletes from a client instead. But I'm much more in tune with NFS than CIFS stuff. > Maybe the file explorer delete button was not intended for multiple, > simultaneous runs? Do you have the space to clone the volume to a test copy and play around and see if you can recreate the problem? > I don’t know.. I know I will avoid page like a plague forever now. > Any thoughts ? Do all filesystem manipulations from the clients if at all possible in the future. John

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Weird mass delete of files in a volume with ONTAP ASYNC-Delete
by Paul Letta 15 Jul '25

15 Jul '25

Hi Toasters. I'm running 9.14.1P13. I used the ONTAP ASYNC-Delete feature from the GUI (storage - Volumes - click on a volume - Click on File system - click on Explorer) to delete a few top level folders in a volume. That worked fine. I saw the background job running and they finished fine. I needed to delete much more. So I clicked on the trash can for one of the folders, clicked ok to start the delete. Then I clicked elsewhere in the GUI and clicked back to File-System, Explorer - and clicked on the trash can for a different folder. I did this maybe 6 or 7 times. When I check the jobs in ONTAP, I saw them all running. But then as I waited, I saw a lot more space being used by snapshots (via the df command) than the 6 or 7 folders I wanted to delete. At this point, only 1 ASYNC-Delete job was still running, so I canceled it. When I look at the live file system.. I see almost all folders (not just the 6 or 7 I clicked) have massive files deleted. Luckily for me, this volume was just a filesystem that barely changes.. so I could snapshot restore from a few hours before, and all was well. Now I'm scared to death of that file-explore page in the ONTAP GUI. I am the only administrator, so no one else could have been logged on to ONTAP. The pattern of deleted files makes a delete coming from a CIFS client very unlikely. There is no NFS export to this volume. Maybe the file explorer delete button was not intended for multiple, simultaneous runs? I don't know.. I know I will avoid page like a plague forever now. Any thoughts ? Thanks!

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