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Okay, then why when using HDDtune in a virtual machine with LVM tests show a value of 100-120, and when mounting a partition to a local folder and using disk QEMU test shows the results of 800-900?

Load from other virtual machines there. Now the cluster is tested with cache settings, everything seems normal. Tested with host /dev/sdb1 partition on the disk array /dev/vmdata/vm-100-disk-1 - disk installed system. When testing it seemed strange that the first test section almost always...

With LVM it is possible that the connection of the local sections of the store were carried out for test purposes. That revealed a big difference in speed.

I use VirtIO, proxmox version 4.4, last update. I used different controllers - test results are the same. Also was mapped as a thin LVM, speed test showed the results of 300-400MB, but thin-lvm not supports HA

Hi! I have a some problem with hdd spee under the windows 2008r2. Harware for Proxmox cluster: 2 intel servers with intel Xeon v3 Infortrend 1024 drive storage - 24 sas hdd raid6 1 virtual server for cluster quorum 2 servers installed with drive storage by sas adapters, partition connected as...