cache_type="unsafe"

for ((i = 2; i <= 7; i++)); do
        sudo qemu-img create -f qcow2 /mnt/tmp5/disk$i 20G
done
sudo chown fdmanana /mnt/tmp5/disk*

ulimit -c unlimited

qemu-system-x86_64 -m 8G \
        -device virtio-scsi-pci \
        -boot c \
\
        -drive if=none,file=debian5.qcow2,cache=none,aio=native,cache.direct=on,format=qcow2,id=drive0,discard=on \
        -device scsi-hd,drive=drive0,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk2,cache=$cache_type,format=qcow2,id=drive1,discard=on \
        -device scsi-hd,drive=drive1,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk3,cache=$cache_type,format=qcow2,id=drive2,discard=on \
        -device scsi-hd,drive=drive2,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk4,cache=$cache_type,format=qcow2,id=drive3,discard=on \
        -device scsi-hd,drive=drive3,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk5,cache=$cache_type,format=qcow2,id=drive4,discard=on \
        -device scsi-hd,drive=drive4,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk6,cache=$cache_type,format=qcow2,id=drive5,discard=on \
        -device scsi-hd,drive=drive5,bus=scsi.0 \
\
        -drive if=none,file=/mnt/tmp5/disk7,cache=$cache_type,format=qcow2,id=drive6,discard=on \
        -device scsi-hd,drive=drive6,bus=scsi.0 \
\
        -drive if=none,file=disk8,cache=unsafe,aio=native,cache.direct=on,format=qcow2,id=drive7,discard=on \
        -device scsi-hd,drive=drive7,bus=scsi.0 \
\
        -drive if=none,file=disk9,cache=unsafe,aio=native,cache.direct=on,format=qcow2,id=drive8,discard=on \
        -device scsi-hd,drive=drive8,bus=scsi.0 \
\
        -drive if=none,file=disk10,cache=unsafe,aio=native,cache.direct=on,format=qcow2,id=drive9,discard=on \
        -device scsi-hd,drive=drive9,bus=scsi.0 \
\
        -net nic,macaddr=52:54:00:12:34:fa -net tap,ifname=tap5,script=no,downscript=no \
        -rtc base=localtime -enable-kvm -machine accel=kvm -smp 4 -cpu host \
        -k pt -serial tcp:127.0.0.1:9997 -display vnc=:5