[Novalug] need dd help
novalugml at jgcomp.com
Sun Feb 12 22:28:26 EST 2012
On Sun, Feb 12, 2012 at 10:17:04PM -0500, Jay Hart wrote:
> I think this command with totally wipe a drive:
> dd if=/dev/zero of=/dev/devicename bs=1k
> Yes/no. what exactly does the "bs=1k" do???
By default dd uses input and output buffers of 512 bytes.
These can be changed individually with ibs= and obs=.
Your option bs= changes both buffer sizes to 1024 bytes.
I find when making large transfers like this that a
larger buffer size greatly speeds up dd. I'd suggest 4k.
Jon H. LaBadie novalugml at jgcomp.com
11226 South Shore Rd (703) 787-0688 (H)
Reston, VA 20190 (609) 477-8330 (C)
More information about the Novalug