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Article #9191Re: Max file size?
From: Andrue Cope [TeamB]
Date: Fri, 23 Jul 2004 12:42
Date: Fri, 23 Jul 2004 12:42
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2112 bytes
<David> wrote: > What is the max file size ? Is it limited by OS or HW? It's limited by the following (from the bottom up): File system Operating system API File I/O libraries. Application code. Application code: Most applications use 32 bit file pointers. This limits their file sizes to 4GB. File I/O libraries. Older file I/O libraries are also often limited to 32 bit file pointers. Operating system API: Win32 uses 64 bit file pointers so can address very, very big files. File systems: NTFS uses 64 bit file pointers so can in theory address very, very big files. In practice (in the past) there were problems going beyond 4GB but those were resolves in an NT fixpack long ago. Whether other bugs might strike somewhere further up the line is unknown. I can vouch that the 4GB barrier can be crossed but have not taken it to the limit yet :) NetWare 3/4/5: 32 bit file pointers. NetWare NSS:64 bit file pointers. FAT12/16/32:32 bit file pointers. Early versions used signed values so sometimes got confused above 2GB. Most Unix file systems: 32 bit pointers. Generally speaking older file systems only have 32 bit pointers. Newer file systems have 64-bit. -- Andrue Cope [TeamB] [Bicester, Uk] http://info.borland.com/newsgroups/guide.html
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X-Google-Thread: 10cc67,8c3de3d88ac413f2 X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Andrue Cope [TeamB]" <no.spam@spammy.com> Subject: Re: Max file size? Newsgroups: borland.public.cppbuilder.nativeapi References: <41010174@newsgroups.borland.com> User-Agent: XanaNews/1.16.3.1 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 NNTP-Posting-Host: 217.207.223.34 Message-ID: <410107ca$2@newsgroups.borland.com> Date: 23 Jul 2004 05:42:50 -0700 X-Trace: newsgroups.borland.com 1090586570 217.207.223.34 (23 Jul 2004 05:42:50 -0700) Lines: 45 X-Authenticated-User: acope Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail