About: 1650 results

Fastest way to write raw data to hard drive (PhysicalDrive) on ...
https://stackoverflow.com/questions/28375925/faste ...
Feb 6, 2015 ... UINT WriteSector(HANDLE hWriteDisk, PBYTE Buf, ULONG Lba, ULONG Blocks ) { DWORD bytesWritten; ... You should not call CreateFile and CloseHandle for each sector overwritten. CreateFile is a very expensive operation that has to do security checks (evaluate group membership, walk SIDs, etc).
CreateFile: direct write operation to raw disk "Access is denied ...
https://stackoverflow.com/questions/8694713/create ...
It's quite rare to want only GENERIC_WRITE . You most likely want GENERIC_READ|GENERIC_WRITE .
Physical disk size not correct (IoCtlDiskGetDriveGeometry) - Stack ...
https://stackoverflow.com/questions/15051660/physi ...
From the third to the last parameter are exact the same as CreateFile , and all have default value, they are optional. ... a simple class use to store CHS address of phisical disks and provide a method converting the address from LBA format, ...
uefi cannot create file on my machine's volume - Stack Overflow
https://stackoverflow.com/questions/32179765/uefi- ...
How to find corresponding LBA (or offset for DiskIO)?. I looked to EFI sources ( from AMI bios sources) and found that there are hidden data placed right after EFI_FILE struct: typedef struct _FILE_HANDLE_INSTANCE ...
How do they read clusters/cylinders/sectors from the disk? - Stack ...
https://stackoverflow.com/questions/2877158/how-do ...
Cylinders and sectors (wiki explanation) are largely obsoleted by the newer LBA (logical block addressing) scheme ... PhisicalDriveX , with X as the number of the drive, which can be opened using the normal CreateFile API.
How to issue a READ CD command to a CD-ROM drive in Windows ...
https://stackoverflow.com/questions/29884540/how-t ...
Apr 26, 2015 ... The proper CDB for the READ CD command, when reading one CD-DA sector at LBA 1, should therefore look like this : ... This can work all the way back to Windows NT4.0 if your CreateFile() call is proper. But yes, if you use ...
INFO: Direct Drive Access Under Win32 - Microsoft Support
https://support.microsoft.com/en-us/help/100027/in ...
Apr 19, 2018 ... You can open a physical or logical drive using the CreateFile() application programming interface (API) with these device names provided that you have the appropriate access rights to the drive (that is, you must be an ...
Reading and Writing to Raw Disk Sectors - CodeProject
https://www.codeproject.com/Articles/28314/Reading ...
I wrote this thing for special cases in which there is some malware sitting and guarding some specific sectors/clusters on volume. If you want to write to do some operations on MBR or Boot Sector, easy approach would be do a CreateFile on "\\.
Customizing tests · microsoft/diskspd Wiki · GitHub
https://github.com/microsoft/diskspd/wiki/Customiz ...
Oct 1, 2018 ... The -S or -Su parameter is equivalent to using the FILE_FLAG_NO_BUFFERING flag with the Windows CreateFile function. The -Sh parameter disables both software caching and hardware write-caching and has the same ...
VDBENCH - Oracle
https://www.oracle.com/technetwork/server-storage/ ...
Jan 14, 2013 ... If you never want either of these scripts to be executed, create file 'noconfig' in the Vdbench directory. ... Whenever Vdbench generates an LBA it by default is always on a block boundary (xfersize=). Use the 'align=' parameter ...