dd - Read For Learn

Does the “bs” option in “dd” really improve the speed?

What you have done is only a read speed test. if you are actually copying blocks to another device you have pauses in the reading while the other device is accepting the data you want to write, when this happens you can hit rotational latency issues on the read device (if it’s a hard disk) … Read more

Using DD for disk cloning

dd is most certainly the best cloning tool, it will create a 100% replica simply by using the following command. I’ve never once had any problems with it. dd if=/dev/sda of=/dev/sdb bs=32M Be aware that while cloning every byte, you should not use this on a drive or partition that is being used. Especially applications … Read more