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    Backup in Large VM Environment

    Hi Spirit and developers team. If is possible, i would like to know if you have interest in add some features to PVE when the incremental backup lies ready for be used. To the option of incremental backups: - Selection of the virtual disks that will be are included for the Backup. - Selection...
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    CMD hangs VM

    I also had problems with Windows machines, generally when the virtual disk is big, and since that i changed the format of the virtual disk of "qcow2" to "raw" or "LVM", my problems ended up. I was using PVE 3.3
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    disk I/O wait on guest at 30% while I/O wait on host below 3%

    @sub0: According to IBM, the best practice is to use LVM as block device instead of a file system with a disk image file. Please see this link: http://www-01.ibm.com/support/knowledgecenter/#!/linuxonibm/liaat/liaatbpblock.htm Best regards Cesar
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    official full encryption support

    Hi to all Only as a comment, according to wikipedia: A performance analysis using the Crypto++ security library showed an increase in throughput from approximately 28.0 cycles per byte to 3.5 cycles per byte with AES/GCM versus a Pentium 4 with no acceleration. See the compatible processors...
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    DRBD flaky on 3.10 kernel

    Hi e100 Do you have a error message for your NIC of DRBD that say "link down" or "down link" (i don't remember the exact text) in your kern.log or syslog file? I have the kernel pve-kernel-3.10.0-5-pve with drbd 8.4.5 since a month ago, in four servers, a with a script that run verification...
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    CPU Performance Degradtion

    Hi Spirit In this link Redhat says that THP (transparent Hugepages) is not recommended for database workloads. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Performance_Tuning_Guide/s-memory-transhuge.html Have you tested with some database? (for example...
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    Hi e100 I guess that the VM isn't using Huge pages: cat /proc/meminfo MemTotal: 264108924 kB MemFree: 12819924 kB MemAvailable: 12774880 kB Buffers: 21904 kB Cached: 156204 kB SwapCached: 0 kB Active: 247737092 kB Inactive: 94624...
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    Quorum problems with PVE 2.3 and 3.3

    Hi to all. Please, anyone that can help me. Again, I have a problem of quorum, but in this case only with two hosts that has NIC of 10 Gb/s that is used for the cluster communication and the network of the VM. Worst of all is that when the cluster communication is lost in these two nodes (i...
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    Quorum problems with PVE 2.3 and 3.3

    With pleasure I will do when I have the results Many thanks, you are the best!!! Note: Please, also explain how i can to do these tasks: 1) Expose and not expose the "numa nodes" to the VM. 2) Enable to QEMU manage the processes on the "numa nodes" 3) Disable to QEMU manage the processes on...
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    Quorum problems with PVE 2.3 and 3.3

    @Mitya: @spirit: Many thanks for your answers, this is a excellent community!!!. Moreover, i am testing a pair of new Dell servers purchased, and soon i will be testing the options of the Bios Hardware for know if PVE can work in a secure manner with the best performance of his hardware...
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    Quorum problems with PVE 2.3 and 3.3

    Hi again I answer to myself After of edit of the cluster.conf file in the PVE nodes without quorum and restart again (without a "<totem window_size" configuration), i got that these nodes have quorum again. Some notes: - All my servers are DELL and the majority has NICs of 1 Gb/s (soon in...
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    PVE and DRBD 8.4.5

    Hi e100 Many thanks for the suggestion, with dkms I have solved the problem. But now i have another problem: "quorum", in a PVE cluster of eight nodes, with PVE 2.3 version and 3.3 If you or anybody can help me, I'll be very grateful. This is the link...
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    Quorum problems with PVE 2.3 and 3.3

    Hi to all. Please, anybody that can help me. I have a cluster of PVE nodes with two versions of PVE. Some PVE nodes have (modern): proxmox-ve-2.6.32: 3.3-139 (running kernel: 3.10.0-5-pve) pve-manager: 3.3-5 (running version: 3.3-5/bfebec03) Other PVE nodes have (old): pve-manager: 2.3-13...
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    PVE and DRBD 8.4.5

    Hi Mir I again with other problem I have installed the "pve-kernel-3.10.0-5-pve" and "pve-kernel-2.6.32-34-pve" kernels in PVE, my compilations and installations of DRBD (kernel and utils) run very good when the kernel 2.6 version is running, but when the kernel 3.10 version is running, the...
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    I guess that these directives are not for include them as arguments. A question: What kind of data base are you using?
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    These was the words of Spirit that he said me: Proxmox use some hyper-v features to help for some case, including high memory. But currently, 2 features are missing. in /usr/share/perl5/PVE/QemuServer > if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' || > $ost eq...
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    Many thanks e100 for your fine attention (which I value very much), but as i have downloaded these programs, i will not need of your gentility, if I have caused some inconvenience, please excuse me, it's very nice for people as me, that there are people like you in this forum. Many thanks...
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    Hi half_life. Thanks for the document, i will read it. Moreover, i have other document of Dell: "BIOS Performance and Power Tuning Guidelines for Dell PowerEdge 12th Generation Servers", but unfortunately i don't remember the url, but i am sure that you will can find it easily. Best regards Cesar
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    Thanks for the tip "hv_time" works for me (at least I do not see any error messages), and more later i will prove "hv_vapic" Best regards Cesar
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    Win2008R2 exaggeratedly slow with 256GB RAM and strange behaviours in PVE

    Hi e100 I got the files of DRBD from the git repository, so i don't need that you send me the files. Many thanks again for your fine attention, which is very appreciated. Best regards Cesar