[SOLVED] hdd total capacity

JJJCR · 04-23-2012, 06:12 AM

hi gurus, if i type this command:

fdisk -l | grep Disk

and it shows:

Disk /dev/sda: 73.4 GB, 73406611456 bytes
Disk /dev/sdb: 73.4 GB, 73406611456 bytes

this means that the PC got two 80GB hard drive?

thanks.

fukawi1 · 04-23-2012, 06:35 AM

Correct.
But they could be in an LVM and effectively referred to as one (often /dev/volgroup-00 or similar)

jefro · 04-23-2012, 04:39 PM

In a general sense the (sd)a and the (sd)b would be a clue to there being two complete physical drives. I never tried it but I guess it could be fooled or even mirrored. That would be very uncommon.

Not even sure about the 80 gig guess either. I'd have to ponder on that. I'd be thinking a 73G size.

JJJCR · 04-24-2012, 04:24 AM

Thank you guys for your replies

SandsOfArrakis · 04-24-2012, 05:58 AM

Quote:

Originally Posted by jefro

In a general sense the (sd)a and the (sd)b would be a clue to there being two complete physical drives. I never tried it but I guess it could be fooled or even mirrored. That would be very uncommon.

Not even sure about the 80 gig guess either. I'd have to ponder on that. I'd be thinking a 73G size.

They are most likely labeled as 80 gb drives. Even though you can store less data on it. In this case just over 73 gb.
It's that way with all hard disks since as far back as I can remember.

For example the hard disk in my laptop is a 750 gb model, yet it can only store 694.7 gb.

There is a nice explanation on this Wikipedia page about this stuff