| 1 | # $Id: tstVDDiscard.vd 39520 2011-12-02 21:17:42Z vboxsync $
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| 2 | #
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| 3 | # Storage: Testcase for discarding data in a disk.
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| 4 | #
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| 5 |
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| 6 | #
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| 7 | # Copyright (C) 2011 Oracle Corporation
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| 8 | #
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| 9 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | # available from http://www.virtualbox.org. This file is free software;
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| 11 | # you can redistribute it and/or modify it under the terms of the GNU
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| 12 | # General Public License (GPL) as published by the Free Software
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| 13 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | #
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| 17 |
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| 18 | # Init I/O RNG for generating random data for writes
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| 19 | iorngcreate size=10M mode=manual seed=1234567890
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| 20 |
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| 21 | print msg=Testing_VDI
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| 22 | # Create disk containers, read verification is on.
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| 23 | createdisk name=disk verify=yes
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| 24 | # Create the disk.
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| 25 | create disk=disk mode=base name=tstCompact.vdi type=dynamic backend=VDI size=2G
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| 26 | # Fill the disk with random data
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| 27 | io disk=disk async=no mode=seq blocksize=64k off=0-2G size=2G writes=100
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| 28 | # Read the data to verify it once.
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| 29 | io disk=disk async=no mode=seq blocksize=64k off=0-2G size=2G writes=0
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| 30 | close disk=disk mode=single delete=no
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| 31 |
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| 32 | open disk=disk name=tstCompact.vdi backend=VDI async=yes discard=yes
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| 33 | printfilesize disk=disk image=0
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| 34 | discard async=yes disk=disk ranges=6,0M,512k,1M,512k,2M,512k,3M,512k,4M,512k,5M,512k
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| 35 | discard async=yes disk=disk ranges=6,6M,512k,7M,512k,8M,512k,9M,512k,10M,512k,11M,512k
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| 36 | discard async=yes disk=disk ranges=1,512k,512k
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| 37 | printfilesize disk=disk image=0
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| 38 |
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| 39 | print msg=Discard_whole_block
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| 40 | discard async=yes disk=disk ranges=1,20M,1M
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| 41 | printfilesize disk=disk image=0
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| 42 |
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| 43 | print msg=Split_Discard
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| 44 | discard async=yes disk=disk ranges=1,21M,512k
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| 45 | printfilesize disk=disk image=0
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| 46 | discard async=yes disk=disk ranges=1,22016k,512k
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| 47 | printfilesize disk=disk image=0
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| 48 |
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| 49 | # Cleanup
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| 50 | close disk=disk mode=single delete=yes
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| 51 | destroydisk name=disk
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| 52 |
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| 53 | # Destroy RNG and pattern
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| 54 | iorngdestroy
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| 55 |
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