Always remember the block size option on dd
I am currently having to copy one 50GB partition over another 50GB partition.
dd is great for this
but the first time I did this I forgot to set the block size so
dd defaulted to 512 bytes. An hour
and 10 minutes later
dd finished. The second time I remembered to set it to 20MB (just add
as one of the parameters for
dd) and it took just under 9 minutes. Just to see what difference it
makes I ran it a third time with a block size of 40MB and it took just over 7 minutes.
In the future I really should try harder to remember to set the block size when using