Boost disk access- Deactivate Access time

Last update on January 30, 2009 09:13 AM by deri58
Published by deri58

Boost disk access (Deactivate access time)





Almost all operating systems use existing file systems with advanced functions: rights management, logging ...
NTFS (Windows) and ext3 (Linux) can record the date of last file access.

However when reading every file, this means writing on your disk which takes a long time in the other hand decreases the performance.

Below is a tip of how to deactivate this feature:

Under Windows 2000/XP/2003/Vista (NTFS only)


From a command line


Go to menu Start > All Programs > Accessories.
Right-click on the Command Prompt and select Run as administrator

Type the following command

fsutil behavior set disablelastaccess 1

Validate by clicking on ENTER.

If no error message appears, then the command has been executed.

Fromthe registry


Make a Back up of the registry database if needed.
Open the Registry Editor (start> run > regedit)
Scroll to: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ FileSystem
Create variable (right-click, new DWORD): NtfsDisableLastAccessUpdate with value 1

Under Linux Operating system


Edit / etc / fstab and add the options and relatime nodiratime to the partition in question.

Example:
# / Etc / fstab: static file system information.
#
# <file System> <mount point> <type> <options> <dump> <pass>
proc / proc proc defaults 0 0
/ dev/sda1 / ext3 defaults, errors = remount-ro, relatime, nodiratime 0 1
/ dev/sda2 none swap sw 0 0



Note: relatime does not disable write access during certain software files need to know the date of last access. There is the option to disable completely noatime records in file access. nodiratime disables scripts when accessing files. Watch the mount manual for more information.

Note 2: All the Linux kernel does not have the option relatime. In this case, use noatime
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