Microsoft Office Tutorials and References
In Depth Information
Adjusting NTFS Memory Allocation
timestamp to determine which files to back up when performing a sequential
backup operation (a backup operation that copies only the files that have newer
timestamps since the last backup date). Check with your backup application’s
website to find out if it will be affected. If it is, consider doing full backups
instead of sequential backups. Full backups are not affected by the lack of a
last access timestamp.
The process for disabling the file access timestamp is very similar to disabling
MS-DOS filename support. Just follow these steps:
1. Open the Start screen and type Command Prompt .
2. Command Prompt appears at the top of the list in your Start screen.
Rightclick the shortcut and click Run As Administrator.
3. After Command Prompt has loaded in the Administrator context, you can
access the NTFS configuration utility. At the prompt, type fsutil behavior
set disablelastaccess 1 .
4. Close Command Prompt and restart your computer for the change to
take effect.
If you run into any problems with this change to your backup application or
any other applications, you can easily undo the tweak. Just type fsutil behavior
set disablelastaccess 0 at the Command Prompt instead.
Adjusting NTFS Memory Allocation
NTFS likes to cache files that are open in physical memory for the fastest
possible access to the raw data. It does this by first reading the data from the hard
drive and then transferring it to physical memory. Depending on the amount of
RAM in your computer, portions of the open files may be paged to disk in the
paging file because the entire file cannot it in the available physical memory.
This results in slower overall performance because for an application to read the
entire file, existing data in the physical memory cache has to be paged back to
the hard disk to make room, and then other unread portions have to be pulled
back from the hard drive into physical memory. This carefully orchestrated
memory swap requires a lot of CPU, memory, and hard-drive processing time.
Whenever memory paging occurs, it slows down the overall performance of
your computer.
If you use your computer for anything that requires fast reads of hundreds
of files, such as indexing your MP3 collection, you might notice that it takes
your computer a while to read these files. This is because the ilesystem is
allocated only a certain amount of physical and paging file space, which results
in increased paging activity. Depending on the amount of physical memory
in your computer, you might be able to get away with increasing the memory
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