# $Id: tstVDCopy.vd 38469 2011-08-16 10:34:32Z vboxsync $
#
# Storage: Testcase for VDCopy with snapshots and optimizations.
#

#
# Copyright (C) 2011 Oracle Corporation
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software
# Foundation, in version 2 as it comes in the "COPYING" file of the
# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
#

# Init I/O RNG for generating random data for writes
iorngcreate size=10M mode=manual seed=1234567890

# Create source disk and fill data
print msg=Creating_Source_Disk
    createdisk name=source verify=no
    create disk=source mode=base name=source_base.vdi type=dynamic backend=VDI size=1G
    io disk=source async=no mode=rnd blocksize=64k off=0-512M size=256M writes=100

# Create 1st snapshot
print msg=Creating_First_Diff
    create disk=source mode=diff name=source_diff1.vdi type=dynamic backend=VDI size=1G
    io disk=source async=no mode=rnd blocksize=64k off=512M-1G size=256M writes=50

# Create 2nd snapshot
print msg=Creating_Second_Diff
    create disk=source mode=diff name=source_diff2.vdi type=dynamic backend=VDI size=1G
    io disk=source async=no mode=rnd blocksize=1M off=0M-1G size=45M writes=100

print msg=Creating_Third_Diff
    create disk=source mode=diff name=source_diff3.vdi type=dynamic backend=VDI size=1G
    io disk=source async=no mode=rnd blocksize=1M off=0M-1G size=45M writes=100

print msg=Creating_Fourth_Diff
    create disk=source mode=diff name=source_diff4.vdi type=dynamic backend=VDI size=1G
    io disk=source async=no mode=rnd blocksize=1M off=0M-1G size=45M writes=100

# Create destination disk
print msg=Creating_Destination_Disk
    createdisk name=dest verify=no

# Copy base image
print msg=Copying_Base_Image
    copy diskfrom=source diskto=dest imagefrom=0 backend=VDI filename=dest_base.vdi

print msg=Copying_First_Diff_optimized
    copy diskfrom=source diskto=dest imagefrom=1 backend=VDI filename=dest_diff1.vdi fromsame=0 tosame=0

print msg=Copying_Second_Diff_optimized
    copy diskfrom=source diskto=dest imagefrom=2 backend=VDI filename=dest_diff2.vdi fromsame=1 tosame=1
    copy diskfrom=source diskto=dest imagefrom=3 backend=VDI filename=dest_diff3.vdi fromsame=2 tosame=2
    copy diskfrom=source diskto=dest imagefrom=4 backend=VDI filename=dest_diff4.vdi fromsame=3 tosame=3

print msg=Comparing_Disks
    comparedisks disk1=source disk2=dest

printfilesize disk=source image=0
printfilesize disk=source image=1
printfilesize disk=source image=2
printfilesize disk=source image=3
printfilesize disk=source image=4

printfilesize disk=dest image=0
printfilesize disk=dest image=1
printfilesize disk=dest image=2
printfilesize disk=dest image=3
printfilesize disk=dest image=4

# Cleanup
print msg=Cleaning_up
    close disk=dest mode=single delete=yes
    close disk=dest mode=single delete=yes
    close disk=dest mode=single delete=yes

    close disk=source mode=single delete=yes
    close disk=source mode=single delete=yes
    close disk=source mode=single delete=yes
    destroydisk name=source
    destroydisk name=dest

iorngdestroy