Question about Microsoft Windows Server Standard 2003 for PC

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Defragmentation Dear sir, What is meant by defragmentation ? and what is the use of this?

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Fragmentation occurs when the operating system cannot or will not allocate enough contiguous space to store a complete file as a unit, but instead puts parts of it in gaps between other files (usually those gaps exist because they formerly held a file that the operating system has subsequently deleted or because the operating system allocated excess space for the file in the first place). Larger files and greater numbers of files also contribute to fragmentation and consequent performance loss. Defragmentation attempts to alleviate these problems.
Example Consider the following scenario, as shown by the image on the right:
Defragmentation - 410px-file_system_fragmentation.svg.png An otherwise blank disk has 5 files, A, B, C, D and E each using 10 blocks of space (for this section, a block is an allocation unit of that system, it could be 1K, 100K or 1 megabyte and is not any specific size). On a blank disk, all of these files will be allocated one after the other. (Example (1) on the image.) If file B is deleted, there are two options, leave the space for B empty and use it again later, or compress all the files after B so that the empty space follows it. This could be time consuming if there were hundreds or thousands of files which needed to be moved, so in general the empty space is simply left there, marked in a table as available for later use, then used again as needed.[1] (Example (2) on the image.) Now, if a new file, F, is allocated 7 blocks of space, it can be placed into the first 7 blocks of the space formerly holding the file B and the 3 blocks following it will remain available. (Example (3) on the image.) If another new file, G is added, and needs only three blocks, it could then occupy the space after F and before C. (Example (4) on the image). Now, if subsequently F needs to be expanded, since the space immediately following it is no longer available, there are two options: (1) add a new block somewhere else and indicate that F has a second extent, or (2) move the file F to someplace else where it can be created as one contiguous file of the new, larger size. The latter operation may not be possible as the file may be larger than any one contiguous space available, or the file conceivably could be so large the operation would take an undesirably long period of time, thus the usual practice is simply to create an extent somewhere else and chain the new extent onto the old one. (Example (5) on the image.) Repeat this practice hundreds or thousands of times and eventually the file system has many free segments in many places and many files may be spread over many extents. If, as a result of free space fragmentation, a newly created file (or a file which has been extended) has to be placed in a large number of extents, access time for that file (or for all files) may become excessively long.
The process of creating new files, and of deleting and expanding existing files, may sometimes be colloquially referred to as churn, and can occur at both the level of the general root file system and in subdirectories. Fragmentation not only occurs at the level of individual files, but also when different files in a directory (and maybe its subdirectories), that are often read in a sequence, start to "drift apart" as a result of "churn".
A defragmentation program must move files around within the free space available to undo fragmentation. This is a memory intensive operation and cannot be performed on a file system with no free space. The reorganization involved in defragmentation does not change logical location of the files (defined as their location within the directory structure).

Posted on Jul 20, 2008

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1 Answer

Defragmentation


As long as you don't have a SSD, don't have backup software that does its backup byte for byte defraging is safe, as long as you don't do it very often. If you do it to much it will kill the hard drive.

May 27, 2013 | Computers & Internet

Tip

How to perform a Disk Defragmentation


Step 1: Right Click my computer and go to manage

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Step 2:Then Click on Disk defragmenter under storage (1) and in right pane select which drive you want to be formatted (2) and click on defragment (3)


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Step 3:Then it will start Defragmentation


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Step 4:Once its completed you will get the below message

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Click on View report if you want to see the report or click on close and relax!

You can do disk defragmenting by double clicking my computer and then
Step 1:Right click the drive which you want to perfom disk defragmenting


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Step 1:Then click on tools tab(1) and click on defragment Now(2)

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Then you will get windows like in Step 3 and once its done Step 4.

on Aug 28, 2010 | Computers & Internet

1 Answer

How to defrag window 7


windows can not be defragmented. it can b reinstalled.
defragmentation is done on hard disk
type defragmenter on sart menu search bar.
the result will show disk defragmenter
click it then defrag ur hard disk.

Nov 26, 2012 | YouTube Videos

1 Answer

How go i defrag my asus netbook


Try This:

  1. Open Disk Defragmenter by clicking the Start button 4f6cbd09-148c-4dd8-b1f2-48f232a2fd33_47.png, clicking All Programs, clicking Accessories, clicking System Tools, and then clicking Disk Defragmenter. 18abb370-ac1e-4b6b-b663-e028a75bf05b_41.png If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

  2. Click Defragment Now.

Disk Defragmenter might take from several minutes to a few hours to finish, depending on the size and degree of fragmentation of your hard disk. You can still use your computer during the defragmentation process

Aug 16, 2012 | ASUS Eee 701 Netbook

1 Answer

Unable to open defragmentation because missing file MFC42u.dll


Restart in Safe Mode and perform the defragmentation in Safe Mode.
Starting your computer in Windows XP Safe Mode can help you diagnose and solve many serious problems, especially when starting normally is not possible/Just before the Windows XP splash screen shown above appears, press the F8 key to enter the Windows Advanced Options Menu.

Jan 21, 2011 | Dell Dimension 1100 PC Desktop

1 Answer

LOW DISK SPACE


Do a disk defragmentation, open control panel select system administration and select defragmentation of the drives. Once completed. clear all temporary files, cookies on the internet browser.
If there is still insufficient space copy off unwanted large media files to the disc or flash memory.
Always have at least 20-30% space left in the C drive so as not to cramp up space for the program.
Uninstall all unwanted proogram files and use only what is required.
You can release a lot of space this way.

Aug 27, 2010 | Dell I531S-2809 PC Desktop

1 Answer

Cann't defrag


If the built-in defragmentation does not work, try 'Defraggler' (Google it), a much better defragmentation program (free).

May 11, 2010 | Microsoft Windows XP Professional

2 Answers

Slow connection


defragmentation is worth performing even tho it takes a long time, id look for a different software other than the windows defragmentation tool

some freeware here

http://www.snapfiles.com/Freeware/system/fwdefrag.html

hope it helps

Mar 24, 2009 | Hanns.G Corporation HW191D 19" LCD Monitor

1 Answer

EO 301


Hi,
First u check the RAM capacity.If u have Windows Vista operating system then Minimum 1GB RAM put it.
OR
Goto start-programs-Accesories-System Tools-Disk Defragmentation.There u select the drive and press Defragment Button.After all drive defragmentation,u restart the laptop.

Feb 21, 2008 | IBM ThinkPad 600 E Notebook

2 Answers

Hardrive is loud


can you give me some more infomation?
type
size
brand
ect

Dec 13, 2007 | Computers & Internet

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