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armageddon08
November 29th, 2008, 08:58 AM
I've purchased a WD External/Portable HDD. It is a 160 GB HDD, but shows up only 149 gigs. Is that normal ?

cariboo
November 29th, 2008, 09:17 AM
Yes it is.

Jim

hessiess
November 29th, 2008, 01:13 PM
The filesystem which tells the OS where files are located tackes up some space on the disk, and some manufactures use 1GB = 1000 MB, when it is actually 1GB = 1024 MB.

Newuser1111
November 29th, 2008, 01:16 PM
Is that normal ?Yes.

armageddon08
November 29th, 2008, 02:03 PM
Yes it is.

Jim


The filesystem which tells the OS where files are located tackes up some space on the disk, and some manufactures use 1GB = 1000 MB, when it is actually 1GB = 1024 MB.


Yes.

But....should it be taking >10GB of space. Is there a hidden partition or something ?

qazwsx
November 29th, 2008, 02:26 PM
Sounds right
Just calculate
160/(1.024)^3=149.012

manicman
November 29th, 2008, 02:37 PM
Yes it's Normal. Hard Drives Manufactures us the SI standard for GB which is 1GB = 1000MB or 10^9 Bytes. Where as most OS's Tend to go with 1GB = 1024MB or 2^30 Bytes. You can distinguish between the two by using Gibibytes where 1Gib = 1024Mib.

Your Hard Disk is correct as
160GB = ~149GiB

Technically Hard Drive Manufactures are more in the right the then the OS's as there compiling with SI standards.

mips
November 29th, 2008, 03:22 PM
But....should it be taking >10GB of space. Is there a hidden partition or something ?

No, that is the size of a 160GB HD. See explanation above.

I have a internal 160GB WD and it's size is 149GB.

handy
November 30th, 2008, 12:45 AM
File systems always shrink the useful size to varying degrees as well.

Varying due to their differing block sizes?