Find Size in Unformatted Harddisk

[sivasakthi]

Hai All,
How the BIOS knows the size of a unformatted Harddisk? Is there any data area in Hard disk itself which stores the size of hte Harddisk...

With regards
Sivasakthivel [sig][/sig]

 

[Boyd2000]

Assuming you're using HP-UX 10 or 11 and you're asking
how you can find out the size, use this:
vgdisplay -v /dev/vgxx (where xx is the volume group)
Look at the line(s) with "PV Name" in them for the
device(s).
Use the raw device name with diskinfo (also for HP-UX 9):
diskinfo /dev/rdsk/cxtydz (where x, y, and z match the
vgdisplay output).
I think it gets the information from /etc/disktab, which
must be manually updated based on information from your
disk vendor if you get a newer disk than the OS and patch
level supplies.
[sig][/sig]

 

[sivasakthi]

Hai,
Where the OS get the info? I am using DOS.. BIOS has the responsiblity to detect the Harddisk and give the size to OS. So that the OS can format the harddisk.. How BIOS get the info


With regards
Siva [sig][/sig]