Re: fastest raw device copy?

2008-11-03 Thread Jeremy Chadwick
On Mon, Nov 03, 2008 at 09:04:47AM +0100, Wojciech Puchar wrote: Would there be anything wrong in cat /dev/ad0 /dev/da0 ? small block size, IMHO 4kB with cat Not to mention, doesn't cat operate on a character level and not a block level? -- | Jeremy Chadwick

Re: fastest raw device copy?

2008-11-03 Thread Wojciech Puchar
Would there be anything wrong in cat /dev/ad0 /dev/da0 ? small block size, IMHO 4kB with cat ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL

Re: fastest raw device copy?

2008-11-03 Thread Wojciech Puchar
? small block size, IMHO 4kB with cat Not to mention, doesn't cat operate on a character level and not a block level? it just do 4kB read. that's all ___ freebsd-questions@freebsd.org mailing list

Re: fastest raw device copy?

2008-11-02 Thread Nikola Lečić
-BEGIN PGP SIGNED MESSAGE- Hash: RIPEMD160 On Fri, 31 Oct 2008 14:16:38 +0100 Ivan Voras [EMAIL PROTECTED] wrote: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using

fastest raw device copy?

2008-10-31 Thread Christoph Kukulies
Hi list, I'm considering using a bootable USB stick with FreeBSD to perform a backup of my notebooks' 500 GB hard disk to a physically identical (same make, same type, same size) hard disk attached to USB. What would be the fastest way to do that sector by sector copy? I'm using dd right

Re: fastest raw device copy?

2008-10-31 Thread Jeremy Chadwick
On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: Hi list, I'm considering using a bootable USB stick with FreeBSD to perform a backup of my notebooks' 500 GB hard disk to a physically identical (same make, same type, same size) hard disk attached to USB. What would

Re: fastest raw device copy?

2008-10-31 Thread Wojciech Puchar
In general, what you're doing is correct for a block copy. There is nothing (that I know of) which is faster; you're copying 500GB of data (including the unused portion -- you *did* ask for a block copy), and this takes a long time. Be patient. On the flip side, your blocksize (bs) there is

Re: fastest raw device copy?

2008-10-31 Thread Ivan Voras
Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now, dd if=/dev/ad0 of=/dev/da0 bs=1000 On the flip side, your blocksize (bs) there is quite high for no good

Re: fastest raw device copy?

2008-10-31 Thread Christoph Kukulies
Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now, dd if=/dev/ad0 of=/dev/da0 bs=1000 On the flip side, your

Re: fastest raw device copy?

2008-10-31 Thread Christoph Kukulies
Christoph Kukulies schrieb: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now, dd if=/dev/ad0 of=/dev/da0 bs=1000

Re: fastest raw device copy?

2008-10-31 Thread Wojciech Puchar
OK, I understand that 1000 isn't good, I just thought it wouldn't harm. But if it is a transfer rate killer then I'd better think of typing ^C now. The command is running for 6 hours now. An idea how I can check the current amount of transfered byed alongside the running dd command? Or

Re: fastest raw device copy?

2008-10-31 Thread Erik Trulsson
On Fri, Oct 31, 2008 at 03:36:02PM +0100, Christoph Kukulies wrote: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now,

Re: fastest raw device copy?

2008-10-31 Thread Jeremy Chadwick
On Fri, Oct 31, 2008 at 03:36:02PM +0100, Christoph Kukulies wrote: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now, dd

Re: fastest raw device copy?

2008-10-31 Thread Pieter de Goeje
On Friday 31 October 2008, Christoph Kukulies wrote: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector by sector copy? I'm using dd right now, dd if=/dev/ad0 of=/dev/da0

Re: fastest raw device copy?

2008-10-31 Thread Ivan Voras
Christoph Kukulies wrote: OK, I understand that 1000 isn't good, I just thought it wouldn't harm. But if it is a transfer rate killer then I'd better think of typing ^C now. The command is running for 6 hours now. No, with a size that isn't a multiple of sector sizes your transferred data

Re: fastest raw device copy?

2008-10-31 Thread Jerry McAllister
On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: Hi list, I'm considering using a bootable USB stick with FreeBSD to perform a backup of my notebooks' 500 GB hard disk to a physically identical (same make, same type, same size) hard disk attached to USB. What would

Re: fastest raw device copy?

2008-10-31 Thread Christoph Kukulies
Jeremy Chadwick schrieb: On Fri, Oct 31, 2008 at 03:36:02PM +0100, Christoph Kukulies wrote: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest way to do that sector

Re: fastest raw device copy?

2008-10-31 Thread Christoph Kukulies
Jerry McAllister schrieb: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: Hi list, I'm considering using a bootable USB stick with FreeBSD to perform a backup of my notebooks' 500 GB hard disk to a physically identical (same make, same type, same size) hard disk

Re: fastest raw device copy?

2008-10-31 Thread Jerry McAllister
On Fri, Oct 31, 2008 at 04:48:32PM +0100, Christoph Kukulies wrote: Jerry McAllister schrieb: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: Hi list, I'm considering using a bootable USB stick with FreeBSD to perform a backup of my notebooks' 500 GB hard disk

Re: fastest raw device copy?

2008-10-31 Thread Erik Trulsson
On Fri, Oct 31, 2008 at 08:13:07AM -0700, Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 03:36:02PM +0100, Christoph Kukulies wrote: Ivan Voras schrieb: Jeremy Chadwick wrote: On Fri, Oct 31, 2008 at 09:48:16AM +0100, Christoph Kukulies wrote: What would be the fastest