логи с гипервизора
/var/log # cat vmkernel.log | grep 'Failed to open file'
2017-04-25T05:50:49.742Z cpu3:37367)FSS: 5914: Failed to open file 'SRV-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219450 [vmx-vthread-5:SRV]): Busy
2017-04-25T05:50:49.757Z cpu3:37367)FSS: 5914: Failed to open file 'SRV_1-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219451 [vmx-vthread-6:SRV]): Busy
2017-04-25T05:50:49.761Z cpu3:37367)FSS: 5914: Failed to open file 'SRV_2-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219452 [vmx-vthread-7:SRV]): Busy
2017-04-25T05:50:49.764Z cpu3:37367)FSS: 5914: Failed to open file 'SRV_3-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219453 [vmx-vthread-8:SRV]): Busy
2017-04-25T05:51:16.333Z cpu9:3010997)FSS: 5914: Failed to open file 'SRV-flat.vmdk'; Requested flags 0x40001, world: 3010997 [vpxa-worker] (Existing flags 0x4008, world: 16219450 [vmx-vthread-5:SRV]): Busy
2017-04-25T05:51:16.337Z cpu9:3010997)FSS: 5914: Failed to open file 'SRV_1-flat.vmdk'; Requested flags 0x40001, world: 3010997 [vpxa-worker] (Existing flags 0x4008, world: 16219451 [vmx-vthread-6:SRV]): Busy
2017-04-25T05:51:16.340Z cpu9:3010997)FSS: 5914: Failed to open file 'SRV_2-flat.vmdk'; Requested flags 0x40001, world: 3010997 [vpxa-worker] (Existing flags 0x4008, world: 16219452 [vmx-vthread-7:SRV]): Busy
2017-04-25T05:51:16.344Z cpu9:3010997)FSS: 5914: Failed to open file 'SRV_3-flat.vmdk'; Requested flags 0x40001, world: 3010997 [vpxa-worker] (Existing flags 0x4008, world: 16219453 [vmx-vthread-8:SRV]): Busy
2017-04-25T06:19:25.451Z cpu0:34532)FSS: 5914: Failed to open file 'MSR11WST4130788-flat.vmdk'; Requested flags 0x40001, world: 34532 [vpxa-worker] (Existing flags 0x4008, world: 16908892 [vmx-vthread-5:MSR11WST4130788]): Busy
2017-04-25T06:19:46.516Z cpu7:37367)FSS: 5914: Failed to open file 'SRV-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219450 [vmx-vthread-5:SRV]): Busy
2017-04-25T06:19:46.519Z cpu7:37367)FSS: 5914: Failed to open file 'SRV_1-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219451 [vmx-vthread-6:SRV]): Busy
2017-04-25T06:19:46.521Z cpu7:37367)FSS: 5914: Failed to open file 'SRV_2-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219452 [vmx-vthread-7:SRV]): Busy
2017-04-25T06:19:46.524Z cpu7:37367)FSS: 5914: Failed to open file 'SRV_3-flat.vmdk'; Requested flags 0x40001, world: 37367 [vpxa-worker] (Existing flags 0x4008, world: 16219453 [vmx-vthread-8:SRV]): Busy