Re: copy on write misconception

2013-02-23 Thread Mike Power
On 02/22/2013 10:35 AM, cwillu wrote: On Fri, Feb 22, 2013 at 11:41 AM, Mike Power dodts...@gmail.com wrote: On 02/22/2013 09:16 AM, Hugo Mills wrote: On Fri, Feb 22, 2013 at 09:11:28AM -0800, Mike Power wrote: I think I have a misconception of what copy on write in btrfs means for individual

copy on write misconception

2013-02-22 Thread Mike Power
was looking at a virtual machine solution and thought btrfs would be great if I could copy the vm disk to a new file at low cost and then launch that vm and customize it to my needs. OS Ubuntu 12.10 Mike Power -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body

Re: copy on write misconception

2013-02-22 Thread Mike Power
On 02/22/2013 09:16 AM, Hugo Mills wrote: On Fri, Feb 22, 2013 at 09:11:28AM -0800, Mike Power wrote: I think I have a misconception of what copy on write in btrfs means for individual files. I had originally thought that I could create a large file: time dd if=/dev/zero of=10G bs=1G count=10