> I think hardisk manufacturers use base 10, rather than base 2, > when they speak of "mega" and "giga", ie. mega = 1000K and not > 1024K. That means that a 120G hardisk is only 114.4G. No. You are right in that "mega = 1000K", but from your figure of 114.4, you still appear to have "K = 1024" and "G = 1024M", both of which are wrong. Hard disk manufacturers use SI defined multipliers, i.e. they use a documented standard. K = 10^3 M = 10^6 G = 10^9 120 GB = 120 000 000 000 B Computer people have traditionally abused these symbols to mean multipliers with similar values, but based on powers of two. Symbols have been defined for these multipliers, but some people still haven't caught up to them. Ki = 2^10 = 1024 Mi = 2^20 = 1048576 Gi = 2^30 = 1073741824 So 120 GB ~= 111.8 GiB Interestingly, LVM1's vgdisplay incorrectly uses "GB" in its output where it should say "GiB". Bill -- William H. Blunn - <bill+s.9sfuw6uo@tao-group.com> - Developer Support Tao 62/63 Suttons Business Park, Earley, READING, RG6 1AZ, United Kingdom Tel: +44 118 901 2999 - Fax: +44 118 901 2963 - http://tao-group.com/ The contents of this e-mail and any attachments are confidential and may be legally privileged. If you have received this e-mail and you are not a named addressee, please inform us as soon as possible on +44 118 901 2999 and then delete the e-mail from your system. If you are not a named addressee you must not copy, use, disclose, distribute, print or rely on this e-mail. Any views expressed in this e-mail or any attachments may not necessarily reflect those of Tao's management. Although we routinely screen for viruses, addressees should scan this e-mail and any attachments for viruses. Tao makes no representation or warranty as to the absence of viruses in this e-mail or any attachments. Please note that for the protection of our business, we may monitor and read e-mails sent to and from our server(s). _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
