I have opensuse 15.2 Leap on all systems
qemu 4.2.1
# /usr/bin/qemu-system-x86_64 --version
QEMU emulator version 4.2.1 (openSUSE Leap 15.2)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
For guest system there are two disks, one image and one iscsi target
The problem is when network down or remote host, qemu doesn`t detach broken disk or generate error. It can wait dozens of time when target asnwers. Guest VM stops normaly work and wait too
This is my kvm configuration (qemu-kvm is symlink to /usr/bin/qemu-system-x86_64 ) :
qemu-kvm -name cc-2 \
-m 8192 -machine accel=kvm -smp 8 \
-kernel /vtpool/containers/lib/vmlinuz-4.12.14-lp151.28.52-default \
-append "root=/dev/md0p1 md=0,/dev/vda,/dev/vdb splash=silent ctype=cc-2 mitigations=auto quiet emode=ok hosted=t18" \
-initrd /vtpool/containers/lib/initrd-4.12.14-lp151.28.52-default \
-drive file=/ssd/cc-clients/containers/clients-vm-02.img,if=virtio \
\
-device virtio-scsi-pci,id=scsi0 \
-device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,drive=disk0 \
-drive id=disk0,file=iscsi://10.47.0.22/iqn.2021-05.t22.cc1:b1a0e42243f2f0c073ac/0,if=none,cache=none,format=raw,media=disk,discard=unmap \
\
-boot c \
-device virtio-net-pci,mac=00:22:02:1a:10:02,netdev=cc2e.0 \
-netdev tap,ifname=cc2e.0,id=cc2e.0,script=/etc/kvm/virtual0-up,vhost=on \
-net nic,macaddr=00:22:02:1b:10:02 -net tap,ifname=cc2e.1,script=/etc/kvm/sanbr0-up \
-vnc 172.16.10.18:102 \
-pidfile /var/run/kvm/containers/cc-2.pid \
-daemonize
So, question is how to set some timeout for iscsi target, to generate error or detach disk on kvm side ? For example, if physical disk with image damage, KVM would catch it and guest have an errors. How to do same with iscsi ?