Physical Disk Size

[Nigel Wade]

Andrew.Bridgeman at corusgroup.com wrote:
> 
> Could someone tell me a command i can run on my Redhat machines to find out
> the physical disk size of the hard disk in the machine without having to
> take the disk out and look at it , this is because  i have some machines
> that are 18/36/72/73 gig and need to know which ones they are. I have run a
> fdisk to show the partitions but i am unsure if all of the machines have
> been configured to use all of the disk so there must be a command i can run
> to just check this out?
> Any help would be much appreciated.
> 

Fdisk tells you the size of the disk, as well as the partitions.

# fdisk -l

Disk /dev/sda: 72.9 GB, 72999763968 bytes
255 heads, 63 sectors/track, 8875 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        1288    10241437+  82  Linux swap
/dev/sda3            1289        8875    60942577+  8e  Linux LVM


On the first line of output it says the disk is 72.9GB.

-- 
Nigel Wade, System Administrator, Space Plasma Physics Group,
             University of Leicester, Leicester, LE1 7RH, UK
E-mail :    nmw at ion.le.ac.uk
Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555