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Partition Gonne! HELP!

Z

zm2002

Banned
Good Day,

One Hard Drive of 120Gb unpartitioned space (out of the box), and a boot from Windows XP Pro CD. It asks how much unpartitioned space I want to use for XP, and only gives me a maximum of 114Gb. Then, it tells that I have 114Gb partitioned for NTFS and 8Mb unpartitioned. When I try to use the 8Mb, it tells that the partition is for "partition information only" ???


I have a 120Gb disk with Windows XP Pro installed. A partition was created when installing the OS, and only gave me a maximum of 114Gb. Then, it told that I had 114Gb partitioned for NTFS and 8Gb unpartitioned. When I try to use the 8Gb, it told me that the partition was for "partition information only" ???

After Win XP Pro installation, I've installed Partition Magic 8.0 and I saw the 8Gb unpartitioned space. I made a 90Gb Logical Partition, so now I have the following info in PM8:

Partition Type Size MB Status Pri/Log
-----------------------------------------------------------------------------------
Local Disk C -> NTFS -> 24466Mb -> Active -> Primary
(*) -> Extended -> 90004Mb -> None -> Primary
Local Disk F -> NTFS -> 90004Mb -> None -> Logical

Looking at this, I count 24466 + 90004 = 114470 Mb, and I still miss my 8Gb space ...

[1] Before I made the 90Gb partition, I saw a 114Gb NTFS partition and a 8Gb unallocated partition ... now, I see no 8Gb unallocated one ... where is it? Anyone has a clue?

[2] What is the reason for that (*) partition on PM8?

[3] If I format drive C to reinstall my operation system, I still maintain all data from drive F with this configuration, don't I? (just to confirm if I'm corrrect)

[4] What are the main diferences between Primary and Logical? When creating the partition, PM8 gave me the option of both, but recomended the Logical one ...

[5] Can't I use that missed 8Gb partition? It's allot of space ( for me, at least 🙂 )


Thanks Allot
ZM
 
Oh, I see your problem now. It had nothing to do with the reserved space for dynamic partitions.

The reserved space for a dynamic disk is 8MB, as we established in your earlier thread.

You see your total space is 114GB.

This is correct. You have been duped by marketing. Common problem. There's lot of threads about this in General Hardware.

Your hard drive manufacturer states hard drive capacities, using Base10. 1MB = 1,000,000 bytes.

Computer OSes use Base2, where 1MB = 2^20 bytes, or 1048576 bytes. When you use different definitions for the MB, the discrepancies can add up real fast when you get to large sizes.

Your 120GB drive is really 114GB. You are not missing any space.

[1]: You had 114GB + 8MB. Get your units correct.

[2]: (*) indicates no drive letter or Volume Name. An extended partition does not have these; the logical partitions inside the extended do.

[3]: Yes

[4]: You can place Operating System boot files on a Primary partition and allow the OS to start from it. You can't do that for a logical partition (although you can place OS files (not boot files) there).

[5]: Explained above.
 
uhm ... marketing you say? GOD DAMN MARKETING BOYS!!! 😀

I see the "problem" here ... it's not a problem, thanks for your help "AndyHui" ... I made quite a confusion between 8Mb and 8Gb there 🙂 and it's a very very big diference ... 🙂

Thanks
ZM
 
OK AndyHui, not quoting anymore. 😉 But thanks anyway 😀😀😀


Computer OSes use Base2, where 1MB = 2^20 bytes, or 1048576 bytes
Click to expand...


One technical question:

1Mb wasn't supposed to be like ... 1024Kb? 🙂

What is the technical reason for an OS to use 1048Kb?


Thanks
ZM
 
Reason OS's use it is because all their computations done by the CPU is in binary, i.e. Base 2. Since the calculations use Base 2, it only makes sense to calculate your file size, etc., in base 2. If you had not noticed, just about everything in computers is based on Base 2, 32 bit processors, 64 bit processors, 8 bit graphics, 16 bit graphics, 32 bit graphics, 64 bit graphics, 128 bit graphics, RAM, etc., etc., etc..... All of those numbers are Base 2. Everything about the computer is Base 2 EXCEPT hard drive specs given from the manufacturers.
 
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