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    NVMe performance inside the guest OS

    Hello. I assembled mdadm raid0 from two Samsung 970 Evo plus NVMe SSDs, created an LVM VG on it and gave the thick LV as a virtual machine disk based on Centos8. On a hypervisor, this RAID delivers about 7GB/s read performance. When I test inside the guest OS with: fio --readonly --name=onessd...
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    Cloning and recovery problems on LVM-thin

    I use LVM-thin as the main storage and have repeatedly noticed that cloning VMs or recovering using proxmox often means that the VM is broken if LVM-thin is used as the target storage. In Windows 10, this means that after cloning, the VM boots only in recovery mode and does not see a drives...
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    The guest operating system kills the performance of the disk subsystem.

    Good afternoon. I ask for help. Installation: Proxmox 6, Xeon 2665, 128Gb REG ECC RAM, ZFS, 16Gb ARC, 4 x 600Gb Enterprise 10kSAS HDD in RAIDZ-1. root@virt:/mnt/zfs/RZHDD/vmstore# zpool status -v pool: RZHDD state: ONLINE scan: none requested config: NAME...