On Wed, Feb 2, 2011 at 5:12 AM, Lukas Czerner <lczerner@xxxxxxxxxx> wrote: > On Tue, 1 Feb 2011, Greg Freemyer wrote: > >> On Tue, Feb 1, 2011 at 3:37 PM, Andreas Dilger <adilger@xxxxxxxxx> wrote: >> > On 2011-02-01, at 12:18, Lukas Czerner wrote: >> >> +Optionally, the >> >> +.I filesystem-size >> >> +parameter may be suffixed by one of the following the units >> >> +designators: 'b', 's', 'K', 'M', or 'G', >> >> +for blocks count, 512 byte sectors, kilobytes, megabytes, or gigabytes, >> >> +respectively. >> > >> > My reading of parse_num_blocks() shows that 'T' is also accepted as a suffix for terabytes, which I was otherwise going to suggest be added, since this is the normal size for filesystems today. It might be worthwhile _briefly_ mentioning here that these are binary/power-of-two values and not decimal values, instead of the rant further below. >> > >> > Minor technical nit - the proper metric value is lower-case 'k' for kilo, though the upper-case 'M', 'G', and 'T' are correct for mega-, giga-, and terabytes. >> >> <pedantic> >> If they are powers of 2, they are: kibibytes, mebibytes, gibibytes, >> and tebibytes. >> >> See the chart on the right of: http://en.wikipedia.org/wiki/Kibibyte >> >> Many linux tools have already moved to these names and abbreviations. >> (TiB not TB, etc.) >> <\pedantic> >> >> Greg >> > > Right, that's why there is the "rant" about it being called kilobytes, > but still treated as binary, not decimal unit. But Andreas is right > that it is not necessary to have one paragraph grumbling about the > stupid-sounding kibibytes and so on. > > So, what I am going to do is to cope with the standard and use those > stupid-sounding binary prefixes (kibi- etc.), remove the "rant" and add > one line note for people to be really sure that it is meant to be a > binary unit. > > Thanks! > -Lukas Lukas, I'm glad you did that. I see too often: Fdisk is broken, I can only put a 150 gigabyte partition on my 160 gigabyte drive. Hopefully people will realize the difference when they see its a 150 Gibibyte partition on a 160 Gigabyte drive. Greg -- Greg Freemyer Head of EDD Tape Extraction and Processing team Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer CNN/TruTV Aired Forensic Imaging Demo - http://insession.blogs.cnn.com/2010/03/23/how-computer-evidence-gets-retrieved/ The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
