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/* $Id: tstVDMultBackends.vd $ */
/**
* Storage: Simple I/O test with different backends in one chain.
*/
/*
* Copyright (C) 2011-2020 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.
*/
void tstIo(string strMessage, string strBackend)
{
print(strMessage);
createdisk("test", true /* fVerify */);
create("test", "base", "tst.disk", "dynamic", strBackend, 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "seq", 64K, 0, 2G, 200M, 100, "none");
io("test", false, 1, "seq", 64K, 0, 2G, 200M, 100, "none");
io("test", true, 32, "seq", 64K, 0, 2G, 200M, 0, "none");
io("test", false, 1, "seq", 64K, 0, 2G, 200M, 0, "none");
create("test", "diff", "tst2.disk", "dynamic", "VMDK", 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 50, "none");
io("test", false, 1, "rnd", 64K, 0, 2G, 200M, 50, "none");
create("test", "diff", "tst3.disk", "dynamic", "VMDK", 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 50, "none");
io("test", false, 1, "rnd", 64K, 0, 2G, 200M, 50, "none");
create("test", "diff", "tst4.disk", "dynamic", "VMDK", 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 50, "none");
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 0, "none");
create("test", "diff", "tst5.disk", "dynamic", "VMDK", 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 50, "none");
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 0, "none");
create("test", "diff", "tst6.disk", "dynamic", "VMDK", 2G, false /* fIgnoreFlush */, false);
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 50, "none");
io("test", true, 32, "rnd", 64K, 0, 2G, 200M, 0, "none");
close("test", "single", true /* fDelete */);
close("test", "single", true /* fDelete */);
close("test", "single", true /* fDelete */);
destroydisk("test");
}
void main()
{
/* Init I/O RNG for generating random data for writes */
iorngcreate(10M, "manual", 1234567890);
tstIo("Testing VDI", "VDI");
iorngdestroy();
}
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