For any unkown reason the virsh save raises an error in my environment Centos 7.2:
[root@vdicnode02 ~]# virsh list
Id Name State
----------------------------------------------------
2 vdicsunstone01 running
3 one-27 running
[root@vdicnode02 ~]# export LIBVIRT_DEBUG=0
[root@vdicnode02 ~]# export LIBVIRT_LOG_OUTPUTS="1:file:virsh.log"
[root@vdicnode02 ~]# virsh --debug 0 --connect qemu:///system save one-27 /var/lib/one//datastores/100/27/checkpoint
save: domain(optdata): one-27
save: file(optdata): /var/lib/one//datastores/100/27/checkpoint
save: found option <domain>: one-27
save: <domain> trying as domain NAME
save: found option <domain>: one-27
save: <domain> trying as domain NAME
error: Failed to save domain one-27 to /var/lib/one//datastores/100/27/checkpoint
error: operation failed: domain save job: unexpectedly failed
[root@vdicnode02 ~]# cat virsh.log
2017-12-27 21:56:26.676+0000: 86761: info : hostname: vdicnode02
2017-12-27 21:56:26.676+0000: 86761: error : virNetClientProgramDispatchError:177 : operation failed: domain save job: unexpectedly failed
[root@vdicnode02 ~]#
[root@vdicnode02 ~]# ps -defa | grep one-27
oneadmin 59956 1 56 20:36 ? 01:20:27 /usr/libexec/qemu-kvm -name one-27 -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off,dump-guest-core=off -cpu SandyBridge -m 1024 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid f3d850ce-25cb-446f-a017-0564751514a1 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-3-one-27/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -device nec-usb-xhci,id=usb,bus=pci.0,addr=0x5 -device virtio-scsi-pci,id=scsi0,num_queues=4,bus=pci.0,addr=0x6 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x7 -device usb-hub,id=hub0,bus=usb.0,port=1 -drive file=rbd:vdicvmpool-ssd/one-2-27-0:id=libvirt:key=AQDE5KVZeuJlIBAAiRDxHOGcbtioGTnBVECyrQ==:auth_supported=cephx\;none:mon_host=vdicnode01\:6789\;vdicnode02\:6789,format=raw,if=none,id=drive-virtio-disk0,cache=writeback -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/one//datastores/100/27/disk.1,format=raw,if=none,id=drive-ide0-0-0,readonly=on -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -netdev tap,fd=27,id=hostnet0,vhost=on,vhostfd=30 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=02:00:2f:4e:9c:3e,bus=pci.0,addr=0x3 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channel/target/domain-3-one-27/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 -device usb-tablet,id=input0,bus=usb.0,port=2 -spice port=5927,addr=0.0.0.0,disable-ticketing,seamless-migration=on -k es -vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=67108864 -global qxl-vga.vgamem_mb=64 -global qxl-vga.max_outputs=1 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=3 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=4 -chardev spicevmc,id=charredir2,name=usbredir -device usb-redir,chardev=charredir2,id=redir2,bus=usb.0,port=1.1 -chardev spicevmc,id=charredir3,name=usbredir -device usb-redir,chardev=charredir3,id=redir3,bus=usb.0,port=1.2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x9 -msg timestamp=on
Thanks a lot.