Disk fragment

A, what is a disk fragment?

In fact the disk fragment should be called document fragment, is because the document is kept the different place of the whole disk asunder, not in succession keeps formation in the disk continuous Cu.

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While applying the physical memory shortage need by procedure, the general operate system will produce to exchange a document at the time in the hard drive and use the hard drive space that that document take up conjecture memory.The virtual memory management procedure would be multifarious to hard drive to read and write, creation a great deal of of fragment, this be the main reason which produces hard drive fragment.

Other will also result in to become a great deal of fragment in the system such as the constitution of the born temporary document for IE browser to browse information or the temporary document catalogue.The document fragment generally will not cause a problem in the system, but the document fragment excessive meeting make the system back and forth look for at the time of reading a document, cause system function to descend and seriously still need to shorten hard drive life span.Moreover, the excessive disk fragment return probably cause saving the throw of document lose.

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Two, is the disk fragment to how produce?

Again because of in the document the operation the process, the Windows system may adjust to use a virtual memory synchronous management procedure, so will cause each procedure multifarious to hard drive read and write, produce disk fragment thus.

Still having a kind of circumstance is stilla area contents which is middle to lately write in a smaller document after ising delete, so will appear some spaces in this document both sides, by this time write in a document again, two pieces space of arbitrarily a parts all can't accept that document and by this time need to cut up into the document two part, the fragment again produced.
The most familiar be the big document which downloads the type of movie, the everyone half will handle once other affairs, but download down this period of the movie document be compelled to cut up into some fragments saving in hard drive.So the download be an important source head which produces fragment.Still having is usually to delete, add a document, by this time if the document space isn't enough big, will produce a great deal of disk fragment, along with revise of document multifarious, this kind of circumstance would be serious day by day.
Although say disk fragment to the normal work influence not and greatly, will show the movement speed that the Zhao lowers hard drive, this is mainly a hard drive to read the document demand jump to turn between several fragments, increased to wait for a diskette revolve appointed area of incubation period and head cut over what Ci way need to look for for a time.



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Three, the disk read and write the principle of operation

The creation reason known disk fragment after, we still have necessity understanding once procedure circulate hour read and write of disk action.While generally circulating a procedure, the work do by the head of disk actuator searches that procedure first to circulate an essential document, then reads data, handle after finally doing to read-deliver the data to the disk high-speed slowly save(Cache) with memory in.Search time is called to equally look for in the hard drive function the index sign for a time(Average seek time), the unit is milli- second(ms), the equally look for of the essential hard drive is small for a time currently in 9.5 mses.If the ability puts applied relevant document of procedure in the continuous space of disk, the head search of time will reduce a lot.Also such while read, the disk reads to be located on a head under area of time that data need only needs for moving to a head another one location to read again a same data horary 1/5.While reading dish, the system checks a data first whether in the high speed slowly save, if then directly read;If then do not visit disk, be also read dish.While needing many times to read the same of data, Cache function very big, but for read for the first time a certain document, Cache incapable is dint.Hence search time and read time to to a large extent influence the efficiency of procedure performance.

Why want to tidy up disk Windows the system also can't automatically search each document the horary principle puts top in the disk quite the cheese position according to the biggest degree decrease head.Hence the Microsoft joined "Disk Defragment"(the sorting procedure of the disk fragment) in the Windows, and provided "TaskMonitor"(mission monitor) to follow the disk activity within process of the procedure start, for the convenience of canning more availably work at"Disk Defragment"."TaskMonitor" automatically circulates with the Windows start.(certainly want "TaskMonitor" in the "start" win election)When add to carry a certain application procedure, it passes interview action of keep watch on the disk to understand that procedure start search and adjust to use of document, carry on a fixed position to the document need, and store as a result surveillance at"C:\Windows\Applog"conceal catalogue in.This most documents in the catalogue with".The lgx"is a file extension, among them, the "lg"'s representative record a document(Log File), "x" means a dish sign, such as D dish procedure with".Lgd"is a file extension;The document which records a document is named the document of applied procedure that the TaskMonitor keep watch on and record for"Winzip32. lges" such as the WinZip procedure on the E dish.When customer carried on disk fragment a sorting, that procedure would according to the information in the Applog catalogue apply procedure of the relevant document move the continuous space on the disk.

The TaskMonitor carries on search to the document information just in the procedure add carry the process, and carries frequency adjustment according to the add of procedure excellent turn of sequence, be also say that using most softwares of number of times can acquire the most passes to shine on.The APPLOG.ind document in the Applog catalogue recorded the number of times that the applied procedure circulate.The customer needs to start the in common use software for many times accepts TaskMonitor surveillance and record, use Disk Defragment again to carry on a sorting, then can be real to carry out a procedure start the exaltation of the speed.But if the customer midway changed in common use software, for example before in common use WinZip, change to use ZipMagic now, so in the Disk Defragment inside very long time still first the pair of and the WinZip relevant document move to the continuous space, not ZipMagic, unless the add of ZipMagic carries number of times to exceed WinZip.To work°out this problem the customer can delete "Winzip32. lgxes" document and record a document nonexistent, the Disk Defragment can't go, either excellent turn it.

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Four, should shouldn't periodically tidy up hard drive?

Actually, the periodical sorting hard drive should be beyond all doubt.If say the hard drive fragment's sorting is true of will injure the words of hard drive, that will be at to the hard drive carry on almost astronomical figure sort number of times of sorting after.

Hard drive usage of time grew, the deposit of document position will become fragmented and disorganized-the document contents will spread on the different position of hard drive.These work efficiencies that the existence of"fragment document" will lower hard drive, would also the increment data throw possibilities of quarrel the data damages.The fragment sorting procedure collects these fragments together, and make their conduct and actions deposit in the hard drive a continuous whole up.Windows from take to have thus of procedure:The sorting procedure(DiskDefragmenter) of the disk fragment, but have this kind of better procedure in the NortonUtilities of the tool software and the Nuts& Bolts.

However, the fragment sorting is a not small work to the operation parts in the hard drive.If the hard drive has already arrived the end stage of its life, fragment's tidy up really probably is a kind of suicide behavior.But in this kind of case, even you don't carry on a fragment sorting and the hard drive will also collapse very quickly.

Actually under the most condition, the periodical hard drive fragment sorting reduced wear away of hard drive.No matter how it is say, let the head of hard drive read from 1 document's always comparing to read to want from 8 easily have to be many.Therefore, an every two weeks or on all sides tidy up a time life span of hard drives should be longer than a hard drive which tidies up never.

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Five, tidy up a prepare of front a work

We generally and all want to tidy up a garbage information to it before tidying up hard drive, the check contains infallibility, finally then can speak of a chippy sorting with excellent turn.Therefore, we should work well these works first before tidying up hard drive:

1, should clean off the garbage document in the hard drive and the garbage information.The system work a period of time after, garbage document meeting very it many, have procedure gearing output temporary document, get to the Internet leave of buffer document, delete software leave of DLL document or strong line shut down output false document etc., "the disk tidy up procedure" which suggests that the "novice" friend still uses a Microsoft deal with it and"old bird" certainly uses some softwares with stronger functions or handicraft to tidy up.

2, check and repair the mistake in the hard drive.Head choose of still keep being "the disk scan procedure" of the Microsoft, although it of speed how really not, as long as you have enough patience, through this procedure complete to disk but believe that the great majority in the system's ising false has already been repaired after scanning in detail.Certainly you can also taste to take a shot other tools, such as flat magpies great physician"Norton WinDoctor", it of the speed canned be more quickly many than"the disk scan tool" in the Windows.

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Six, tidy up method and attention

In the Windows, customer can the menu wins election to choose "the tool/disk of the procedure/enclosure/system fragment sorting procedure" from the "beginning", flick choice open actuator window way, the choice wants to tidy up of cent area, then click[assurance]can immediately start tidy up, but this method fragment tidy up when the process consume very much, the general 2 GBs or so cent area needs more than an hour, so suggest a reader:

1, the sorting disk fragment of time, close all other of applied procedure, include screen saver procedure, had better establish the size of virtual memory for fix value.Don't carry on reading and write an operation to the disk, once the Disk Defragment discovers that the document of disk contains change, it will restart a sorting.

2, sorting disk the frequency of the fragment want to control accommodation and the too multifarious sorting will also shorten the life span of disk.The disk cent area which generally usually reads and write once a week tidies up.

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Seven, the disk scan the order parameter of procedure

Order parameter at DOS ages can be treated as a basic technical ability, a lot of procedures all want to be start by order parameter, but arrived sketch to turn interface for ages, already very difficult see its trace again, but it exists really, and develops a not small function.Such as a lot of constitution procedures of Windows games are to use/Setup parameter to carry out.Usually we will not keep in mind the order parameter of some procedures too much, but they usually include some and hidden function, if the usage adequacy is very helpful to you.

The disk in the Windows scans procedure to include many order parameters, you can under the MS_DOS method or realization in the "circulate" the dialog box, if need to usually use order parameter, can also build up a fast way.

/The SILENT start disk scans procedure to disallow to make any options constitution and deluxe constitution.

/A check all native hard drives

/The N automatically starts and withdraws disk to scan procedure

/The P keeps disk from scan procedure repair discover of mistake

X: The X mean appointed want to check of actuator number(do not need/ of order parameter)

For instance:

1)check actuator E combine the auto start and withdraw disk to scan procedure

SCANDSKW E: /N

2)check all hard drives also keep disk from scan the procedure repair discover of any mistake

SCANDSKW /A /P

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Eight, once circulated other documents to tidy up how the procedure do

After circulating other sorting procedure(like WinAlign) of the disk documents, it probably disturbed the data of TaskMon record, if directly carried on a fragment sorting at this time, may lose more than gain and could not reach excellent turn the purpose of function.The way of solve is many movement Windowses and oneself before carry on fragment sorting the most in common use procedure, can let the TaskMon re- collect a correct covariance data so, guide to carry on disk excellent turn.

End, be the sorting procedure of the disk fragment of start the Windows98, Intel within probably surprised interface marking.The production manufacturer of processor why will participate to write this excellent turn the software of disk?This is because hard drive's looking for a slowness of time will cause descend of the system whole function, will have the Sun CPU the image of super calculation ability so, let the person mistake CPU function of lowly.Microsoft a test expresses that the start Windows only compares to dash about in dashing about 233 machines 150 quick 3%, be also say, fast of the CPU also can't overcome the weakness that the disk delay.Hence, drive in the common benefits under, Intel and Microsoft united to develop the disk fragment of the Windows98 a sorting procedure and use to remove hard drive to look for a bottleneck of slowness.

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Nine, how quickly tidy up disk fragment

All need to choose a "beginning" while needing to tidy up disk fragment each time*"procedure"*"enclosure"*"system tool"*"the sorting procedure of the disk fragment", then again appointed actuator, troublesome.Can you have the simple method completion this a series operation?

In the Windows resources management machine, the choice "look into"*"the document clip an options"(or"look into"*"options"), the choice"document type" options card, and win election to choose "actuator" in the "already register of document type" row form.The single shot "edit"s a button, open "edit document type" dialog box, the choice"lately set up", key-in "fast sorting disk fragment" in the "operation" the column.Key-in "C:\ Windows\ the defrag.exe"%1"\ noprompt" in"used for the applied procedure of performance operation" the column.

The single shot "assurance", then"close", return to "document type" options card, then single shot"close".Open "my computer" now, the right key single shot wants to tidy up the actuator of disk fragment, is flick of the fast menu win election to choose "fast sorting disk fragment" then.