[clug] fastest way to copy a fs

Peter Barker pbarker at barker.dropbear.id.au
Wed Jan 17 07:11:47 GMT 2007

On Wed, 17 Jan 2007, Alex Satrapa wrote:

> only controlling one drive. Strictly speaking the bottleneck becomes the 
> drive itself (most drives I've played with max out at 20MB/s off the

I think you might need to buy some more drives :)

pblocal at ellington:~$ sudo time dd if=/dev/sda of=/dev/null 
21100+0 records in
21099+0 records out
22123905024 bytes (22 GB) copied, 303.025 seconds, 73.0 MB/s
Command terminated by signal 2
0.04user 24.71system 5:03.04elapsed 8%CPU (0avgtext+0avgdata 
0inputs+0outputs (4major+540minor)pagefaults 0swaps
pblocal at ellington:~$

That was from a ST3808110AS - nothing special nowadays.

> Alex

Peter Barker                          |   N    _--_|\ /---- Barham, Vic
Programmer,Sysadmin,Geek              | W + E /     /\
pbarker at barker.dropbear.id.au         |   S   \_,--?_*<-- Canberra
You need a bigger hammer.             |             v    [35S, 149E]
"Peter is apathetic, and I'm vaguely apathetic" -- Rachel, thinking of organising a movie trip

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