On Fri, Oct 11, 2019 at 6:04 AM Strahil <hunter86_bg@yahoo.com> wrote:
You can always check the *queue_if_no_path* multipath.conf option and give it a try.
This setting would be at host side, where things are ok to put a timeout of X seconds using entries such as devices { device { all_devs yes # Set timeout of queuing of 5*28 = 140 seconds # similar to vSphere APD timeout # no_path_retry fail no_path_retry 28 polling_interval 5 }
Don't forget that the higher in I/O chain you go - the higher the timeout is needed, so your VM should also use multipath with that option, in addition to the host.
Yes, in fact at guest side I put a udev rule
ACTION=="add", SUBSYSTEMS=="scsi", ATTRS{vendor}=="QEMU*", ATTRS{model}=="QEMU HARDDISK*", ENV{DEVTYPE}=="disk", RUN+="/bin/sh -c 'echo 180 > /sys$DEVPATH/device/timeout'" so that guest disk timeout is more than host storage. Any other settings? Gianluca