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    Speed up the VM (storage) migration

    LnxBil, you are quite correct. I misspoke based on a forum post I read on the subject. I messed around with it a bit yesterday and found that restarting ssl was good enough to make whatever is in the .ssh/config active. What I found to be a bit mysterious was that certain of the encryption...
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    Speed up the VM (storage) migration

    Hello There, I stumbled upon this thread while looking for a way to reduce the encryption bottleneck for scp on my storage network. This is precisely what I am looking for but this thread is five years old. Does anyone know the current state of OpenSSH and Rsync on PVE? Have any of these...
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    Host migration practices without a SAN

    Here is what is in my /etc/network/interfaces: auto ib0 iface ib0 inet static address 10.0.0.60 netmask 255.255.255.0 pre-up modprobe ib_ipoib pre-up echo connected > /sys/class/net/ib0/mode mtu 65520 As I said, I get the same issue with 10GbaseT Ethernet so I am no longer blaming...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    Thank you for the helpful ideas Fabian! Maybe this is the way to go then. It certainly makes things simple for management. Maybe I can speed up SCP by reducing the encryption level or something along these lines. I would love to make NFS work but it seems like an uphill battle. I am not the...
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    Host migration practices without a SAN

    Hello Everyone, i have been playing with PVE for over a year now first in a lab on older Dell Precisions with at most 8 7200 RPM spindles per hosts until I arrived at what I thought was a workable setup. Then I got two higher end Supermicro 4 U chassis with lots of RAM, 40 CPU cores per host...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    Hello Again, I have been looking for answers on the PVE Wiki and find a wiki page called "Separate Cluster Network" This had me excited until I read this: "It is good practice to use a separate network for corosync, which handles the cluster communication in Proxmox VE. It is one of the...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    You just blew my mind Fabian! Is this documented? What do you mean about "storages have the same storage name"? Do you mean the zfs datasets should have the same name or do both the zpool AND dataset names have to be the same? I have been using a format of hostnamezpoolx for the zpools so...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    Ha ha. I avoid the terminal man pages cause it strains my eyes, thus I tend to look online and sometimes get led astray. Regarding NFS in general, is this the best way migrate virtual disks between two hosts without using shared storage? Has anyone else had problems getting NFS to work...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    I have been looking for some NFS tuneable options to reduce the amount of time the system waits before trying to see the NFS server again. I have found conflicting reports on what the default value is. Some say 600 Deciseconds and some say default is 7. I have been unable to set this mount...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    Hello Fabian, I can confirm that pvesm status hangs on the sending server. I am trying to move a 100 GB raw image. It shot up to 5% then stalled for twenty minutes, then shot up to 29% and stalled again. This is where it is when I got the failed "pvesm status". I noticed when trying this...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    I have been Googling around and find other PVE users experiencing similar issues with NFS. I get the "task qemu-img blocked for more than 120 seconds" and then an NFS related call trace in the Syslog. I find other people with these errors online but don't find any explanation or solution. I...
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    PVE Host seems to go "offline" periodically while moving a virtual disk

    Hello, I first noticed this when using VZDump to backup a VM sitting on a ZFS filesystem to an NFS share on a different host. I am at the moment trying to migrate a 1 TB virtual disk from a Zpool that I wish to destroy and rebuild. The NFS target is backed by a ZFS file system on a fast SSD...
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    OFED for PVE

    Thank you very much Fabian for taking the time to clarify and for giving us all a little tutorial on how to maintain kernel modules! Very helpful and saved me a ton of time flailing around on Google. Most Sincerely, GB
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    OFED for PVE

    They most definitely were not removed when I removed mstflint. Autoremove removed only three libraries, I can't recall their names but they were related to the unneeded mstflint. I have never grown a neckbeard so I don't have the long history with the evolution of package management from...
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    OFED for PVE

    Thanks Fabian. I have been focused on problems I am having with using a Linux bond for the vmbr0 bridge. I just can't make it work on PVE 4. I have upgraded to PVE 4.4.8 with some difficulty (thanks to installing OFED). On that subject, for what it is worth, here is the short version of...
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    OFED for PVE

    Hello, I have the same result. I did a short ping test prior to updating the drivers and averaged 0.110 with a 0.025 moving deviation. The min/max values are 0.049 and 0.149. Do you get that much noise in a simple ping? That is a three fold difference although I will grant that it is...
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    OFED for PVE

    Guten Tag Meiner Damen und Herren, I am just coming back around to this and upon revisiting Mellanox.com to get the packages for manual installation, I find now that there is a package for Ubuntu 16.04. I am going to attempt to install this using the intended install script. If it seems to be...
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    OFED for PVE

    Hello again, This morning I had a thought. The Infiniband adapters each have two ports and on two of my three nodes, I had both ports patched into a switch with IPs assigned. I did that by way of troubleshooting connectivity issues I was encountering during setup. It dawned on me that this...
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    OFED for PVE

    Regarding your being confused, I am distilling about a year's worth of dicking around with PVE (and others like SmartOS) into a few paragraphs out of laziness on my part so I don't take that personally and I am sorry if it is unclear. I take it you aren't using ZFS in your setup. Here goes...
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    OFED for PVE

    Hello CBdVSdFSMB, Some of those consonants must be silent so I will just call you Jeff. Thanks for the considerate response. I have pretty much written Infiniband off at this point but now you have me wondering if that was premature. I will try to reply to your points. Regarding the...

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