Reserved System Space on Hard Drive?

[Jack Barrett]

Whenever I Defrag there are always areas reserved for "System Space" and it
never seems to be in the same location.
The size of this area changes every time also.
I am using XP Pro with Diskeeper Defrag Tool.
What is the purpose of reserving space in different locations?

Thanks,

Jack

 

[LamSoft]

Is it unremoveable space?
I think it is the pagefile.sys...

 

[DeMoN LaG]

What is the purpose of reserving space in different locations?

System files that can not be moved. The page file which can not be moved
while in use. Just two possibilities

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[NoOne]

System files that can not be moved. The page file which can not be moved
while in use. Just two possibilities

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email: de_on-lag@co_cast.net (_ = m)
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One more.
Some manufacturers reserve space for their files. IE: Compaq does this so
that you use a "system restore" disk to restore your machine. The disk
looks for the files. In my case it was a small "D" partition.

 

[Robert Baer]

System files that can not be moved. The page file which can not be moved
while in use. Just two possibilities

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Actually, there is no such thing as a file that "cannot" be moved.
The truth of the matter is that nobody (yet that i know of) has
written the software to move those system files.
As far as i know, the only file that should not be moved is the boot
record (without changing the pointer in the partition table).
And lastly, the partition record, which is a file, is almost
non-moveable, as the BIOS would have to be modified to point to its
location.
All of the above ignores the info that the HD manufacrurer may place
(somewhere hidden) on the hard drive (hard drive ID info, bad sector
info, servo info, and who knows what else).

 

[Alex Nichol]

Actually, there is no such thing as a file that "cannot" be moved.
The truth of the matter is that nobody (yet that i know of) has
written the software to move those system files.
As far as i know, the only file that should not be moved is the boot
record (without changing the pointer in the partition table).
And lastly, the partition record, which is a file, is almost
non-moveable, as the BIOS would have to be modified to point to its
location.

The partition boot record (all one) is not properly a file anyway, but
is the first sector in a partition, including (if it is bootable) the
code needed to get the first file of boot; in XP's case ntldr.

But there are files that cannot be moved with the system running - eg
the page file - where I am pretty sure that system takes note of all the
sectors used in it and then the kernel carries out paging operations
using those sector numbers direct - not 'sector n of he file' with all
the overhead that implies. If you moved the file underneath, you would
get one heap big crash. Same sort of considerations apply to registry
files

 

[DeMoN LaG]

Actually, there is no such thing as a file that "cannot" be moved.
The truth of the matter is that nobody (yet that i know of) has
written the software to move those system files.

They are files that should not be moved. The page file should not be
moved while it is in use. Critical OS files should not be moved while
there is a chance they may need to be read.

As far as i know, the only file that should not be moved is the boot
record (without changing the pointer in the partition table).

I don't consider the boot record to be a file in the same sense that %
windir%\NTOSKRNL.EXE is a file

And lastly, the partition record, which is a file, is almost
non-moveable, as the BIOS would have to be modified to point to its
location.

Again, I don't consider this to be a file in the same reguard we are
talking about.

All of the above ignores the info that the HD manufacrurer may place
(somewhere hidden) on the hard drive (hard drive ID info, bad sector
info, servo info, and who knows what else).

None of these things will appear in the defragmenter view as unmovable
files, as the OS does not recognize them as a file, merely as sectors on
the hard drive

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email: de_on-lag@co_cast.net (_ = m)
website: under construction
Need a technician in the south Jersey area?
email/IM for rates/services

 

[Robert Baer]

They are files that should not be moved. The page file should not be
moved while it is in use. Critical OS files should not be moved while
there is a chance they may need to be read.


I don't consider the boot record to be a file in the same sense that %
windir%\NTOSKRNL.EXE is a file


Again, I don't consider this to be a file in the same reguard we are
talking about.


None of these things will appear in the defragmenter view as unmovable
files, as the OS does not recognize them as a file, merely as sectors on
the hard drive

--
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email: de_on-lag@co_cast.net (_ = m)
website: under construction
Need a technician in the south Jersey area?
email/IM for rates/services

AyeYup!

 

[davep1553]

sorry to reopen an old thread

Ok all that is good but
1) Diskeeper identies the actually paging file seperatly from Reseve
System Space
2) Diskeeper dosn't find anywhere near as much reserve system space o
a FAT32 partion
3) Why would a secondary harddrive that was just formated have 15
reserved system space


-
davep155

 

[davep1553]

*3) Why would a secondary harddrive that was just formated have 15
reserved system space? *

I should note there is apsolutly nothing on the drive that the forma
utilty doesn't build. (root directory, FAT table


-
davep155

 

[David Candy]

How would we know wtf you are babbling about. You deleted the previous content. Post again properly.

 

[NobodyMan]

http://www.uscricket.com

How would we know wtf you are babbling about. You deleted the previous content. Post again properly.

This coming from a person who doesn't know how to properly bottom
post? Remember the saying about stones and your glass house?