I have a 16GB Firebird USB and the actual size on disk is only 14.9GB

Hi all,

When I format my usb disk, all i can get is 14.9GB. Is it normal?

and one more thing. I tried to format it as a chrome OS startup disk and that made a big mess. eventually i managed to return it to one partition. that thing with the chrome os changed the drive’s default settings so i would like to know what is the default allocation unit size (when formating)? i think it was 4096 bytes before i messed with it, now its default 8192. i don’t remember what the default allocation size was so i need a number for an answer.

thanks a lot!

I.K.

@idankanfi wrote:

 

When I format my usb disk, all i can get is 14.9GB. Is it normal?

Yes.

Even your hard disk, it would show less. let’s say a 500GB will only be shown as 480GB or something. But when you look at BIOS, it will be shown the whole size. PC hardware and Windows actually see a data in different ways. For a hardware, it’s 1KB = 1000 bytes and in Windows, it reads 1KB = 1024 bytes.

thanks!

thanks

thanks

i still need help with the default allocation unit size

If most of the files you plan on keeping on it are large keep the 8K cluster size.  If most are small use the 4K one.

Thanks Ed_P