Try something like: dd if=/dev/zero of=mybigfile bs=1024k count=3000000 At 10:03 PM 5/9/02 "Grigsby, Garl" <[EMAIL PROTECTED]> wrote: >Bob, > First thanks for the tool. I have been wanting to play around with >large files on Linux, but have not wanted to deal with 3 Gb files... >Second it would seem that for me your program will only create a file up >to 1.1 Gb in size. I tried it on three Linux boxes two running ext3 and >one running ReiserFS (both of which should do a file larger than 2Gb). I >also tried it on a Sun E250 running Solaris 8. Now I know for a fact >that my E250 will create a file over 200 Gb (don't ask, it was a bad >weekend), but using your little tool all I get are files that are ~1.1 >Gb. What did I do wrong???? > >Garl > >-rw-r--r-- 1 grigsby gtac 1073741824 May 9 18:57 a-big-file > > > >-----Original Message----- >From: Bob Miller [mailto:[EMAIL PROTECTED]] >Sent: Thursday, May 09, 2002 12:22 PM >To: [EMAIL PROTECTED] >Subject: [EUG-LUG:2583] Re: BIG FILES > > >Kahli R. Burke wrote: > >> SO...how much are those 8TB drives running these days? Could you >spare >> me a couple? > >I wondered who'd call me on that first. The size of the file is 8 TB. >But it's a sparse file. It only has 44 nonzero bytes in it, and it >only uses 488 Kb of disk space. > >Here's the program that created it. To use on Linux, compile like >this. > > cc -o bigfile bigfile.c -D_FILE_OFFSET_BITS=64 > >-- >Bob Miller K<bob> >kbobsoft software consulting >http://kbobsoft.com [EMAIL PROTECTED] > ><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> ><HTML> ><HEAD> ><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> ><META NAME="Generator" CONTENT="MS Exchange Server version 6.0.4417.0"> ><TITLE>RE: [EUG-LUG:2583] Re: BIG FILES</TITLE> ></HEAD> ><BODY> ><!-- Converted from text/plain format --> > ><P><FONT SIZE=2>Bob,</FONT> > ><BR><FONT SIZE=2> First thanks for the tool. I have been wanting to play around with large files on Linux, but have not wanted to deal with 3 Gb files... Second it would seem that for me your program will only create a file up to 1.1 Gb in size. I tried it on three Linux boxes two running ext3 and one running ReiserFS (both of which should do a file larger than 2Gb). I also tried it on a Sun E250 running Solaris 8. Now I know for a fact that my E250 will create a file over 200 Gb (don't ask, it was a bad weekend), but using your little tool all I get are files that are ~1.1 Gb. What did I do wrong????</FONT></P> > ><P><FONT SIZE=2>Garl</FONT> ></P> > ><P><FONT SIZE=2>-rw-r--r-- 1 grigsby gtac 1073741824 May 9 18:57 a-big-file</FONT> ></P> ><BR> ><BR> > ><P><FONT SIZE=2>-----Original Message-----</FONT> > ><BR><FONT SIZE=2>From: Bob Miller [<A HREF="mailto:[EMAIL PROTECTED]";>mailto:[EMAIL PROTECTED]</A>]</FONT> > ><BR><FONT SIZE=2>Sent: Thursday, May 09, 2002 12:22 PM</FONT> > ><BR><FONT SIZE=2>To: [EMAIL PROTECTED]</FONT> > ><BR><FONT SIZE=2>Subject: [EUG-LUG:2583] Re: BIG FILES</FONT> ></P> ><BR> > ><P><FONT SIZE=2>Kahli R. Burke wrote:</FONT> ></P> > ><P><FONT SIZE=2>> SO...how much are those 8TB drives running these days? Could you spare </FONT> > ><BR><FONT SIZE=2>> me a couple?</FONT> ></P> > ><P><FONT SIZE=2>I wondered who'd call me on that first. The size of the file is 8 TB.</FONT> > ><BR><FONT SIZE=2>But it's a sparse file. It only has 44 nonzero bytes in it, and it</FONT> > ><BR><FONT SIZE=2>only uses 488 Kb of disk space.</FONT> ></P> > ><P><FONT SIZE=2>Here's the program that created it. To use on Linux, compile like</FONT> > ><BR><FONT SIZE=2>this.</FONT> ></P> > ><P> <FONT SIZE=2>cc -o bigfile bigfile.c -D_FILE_OFFSET_BITS=64</FONT> ></P> > ><P><FONT SIZE=2>-- </FONT> > ><BR><FONT SIZE=2>Bob Miller &nbs p; &n bsp; K<bob></FONT> > ><BR><FONT SIZE=2>kbobsoft software consulting</FONT> > ><BR><FONT SIZE=2><A HREF="http://kbobsoft.com";>http://kbobsoft.com</A> &n bsp; [EMAIL PROTECTED]</FONT> ></P> > ></BODY> ></HTML>
