In section « Windows and disks» we will discuss the way the Windows interacts with the disks possible variants of virtual disk creation necessary information for disk driver development. disk image in memory, remote disk, or cash register) and it’s hard to port this code to the kernel mode or there is no source code at all, for example when performing network access or using specific encryption library.Īs an example of such user mode library I used SparseFile (file-container with some data as the data is accumulated it will size up to the maximal size). This approach can be useful when there is already developed code of user mode that provides access to the data source (there can be any data source, e.g. The main difference of the solution, which is given in this article, is that FileDisk processes requests to the virtual disk in kernel mode while the proposed solution processes them in user mode. The implementation of virtual disk for Windows can also be found in the widely known project with open sources FileDisk ( ). ![]() Some necessary information concerning disk drivers for Windows is given in the section “Windows and disks”. ![]() In Windows virtual disks are implemented by means of kernel mode drivers. This article is oriented to Windows-developers and considers how to create virtual disk in Windows system. 1.1 Why to process requests in user mode?
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