On Mon, Feb 8, 2010 at 10:26 PM, Steven Haigh <netwiz@xxxxxxxxx> wrote: > On Mon, 8 Feb 2010 22:24:09 -0600, Wil Reichert <wil.reichert@xxxxxxxxx> > wrote: >> On Mon, Feb 8, 2010 at 7:23 PM, Dawning Sky <the.dawning.sky@xxxxxxxxx> >> wrote: >>> On Mon, Feb 8, 2010 at 3:23 PM, Dawning Sky <the.dawning.sky@xxxxxxxxx> >>> wrote: >>>> It appears clonezilla is using dd and the speed is extremely >>>> slow (~5MB/sec) and it says it's gonna take 1 day to clone the 500GB. >>> >>> BTW, is it normal for dd to be this slow, or is there something wrong >>> with my setup? These are quite modern drives and should be able to >>> handle sequential transfer of 10's of MB/s. I have never used dd >>> before so I don't have any experience. >> >> dd should be pretty close to the max possible throughput of yer drive. >> For example, I dd'd a 1T WD black not too long ago & it was around >> 120MB/s on the outside & 70MB/s in the middle. > > I think this depends more on the block size that is used. 1MB block sizes > are much faster than 512 byte blocks... Good point, I was using bs=1M. Wil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html