Hello!
I was able to reproduce this error by running "dbench -D /root -s -S -t 600 2" inside of the guest.
After 387 seconds it broke.
2 1302642 28.39 MB/sec execute 382 sec latency 7.610 ms
2 1305139 28.38 MB/sec execute 383 sec latency 7.179 ms
2 1307585 28.37...
I will change writethrough to directsync and continue observation.
BTW, though buffer io errors - there were no data loss on ext4 and xfs partitions. fsck doesn't report any filesystem errors.
CPUs are
Intel(R) Xeon(R) CPU E5645 @ 2.40GHz
Intel(R) Xeon(R) CPU E5-2695 v2 @ 2.40GHz...
Hello, e100!
All virtual disks are in writethrough mode.
Servers with most issues have LSI MegaRAID SAS 9280-4i4e controllers, with cachecade as well as without.
Some servers have Adaptec ASR7805Q with MaxCache. All controllers have latest firmware.
On proxmox host self - nothing related...
Hello!
I have several proxmox clusters separeated geographically.
Each cluster contains couples of servers sharing LVM over drbd, as a DRBD interlink i have Intel 10G ethernet cards. All servers have top-level RAID controllers with bbu.
All servers have pve-enterprise repository access via...
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