we use CIFS Protocol for Backup, but the check if the Storage is online produces high load on our Samba file servers.
The samba fileserver is bound to our Active Directory, in the log you can see, that the online checker tries an login every 10 seconds:
[2019/01/28 13:46:13.847175, 2]...
we see very often the problem, that pvestatd erroneously says the a CIFS Storage (we use it for Backup and ISO) is offline:
root@gar-ha-cfw01a:/usr/share/perl5/PVE/Storage# systemctl status pvestatd
● pvestatd.service - PVE Status Daemon
i currently have currently 3 Host with 2 OSD's (bluestore) each on Samsung NVME SSD 960 Pro 1 TB,
these are M.2 NVME Moduls on a pcie adapter from Delock.
Read Speed (e.g. with rados bench) looks really great, but write speed isn't too good.
Are there any tuning parameters for the OSD's...
I often find VM's in error state in the ha-manager but the VM is cleanly running. I know how to get it out of error state even without restarting the VM (remove and add to ha Group)
But this is annoyingly as I regularly have to clean up error states for VM's as they should get started on...