From: Axel Etzold <AEtzold@...>
Date: 2008-11-29T03:26:08+09:00
Subject: Re: Maximum number of files on a disk ?


-------- Original-Nachricht --------
> Datum: Fri, 28 Nov 2008 08:10:34 +0900
> Von: "Wayne Vucenic" <nightphotos@gmail.com>
> An: ruby-talk@ruby-lang.org
> Betreff: Re: Maximum number of files on a disk ?

> On Thu, Nov 27, 2008 at 2:16 PM, Axel Etzold <AEtzold@gmx.de> wrote:
> 
> > the maximum number of files that can be created on a hard disk...
> > for ... NTFS and fat32 ...
> 
> For NTFS, the maximum number of files that can be created is 2**32 - 1.
> 
> I'd expect that the number for fat32 is similarly large.
> 
> Hope this helps,
> 
> Wayne
> 
> ---
> Wayne Vucenic
> No Bugs Software
> Agile Ruby (but preferably not Rails) Contract Programming in Silicon
> Valley since 2001

Dear Wayne,

thank you for responding.
I am writing to an NTFS disk, where I am splitting up a large XML file into smaller
bits, which are saved as individual files ( and closed immediately after writing to them).
The process runs smoothly until I get the following last correct output 

49'000'000   #  <-  number of lines traversed in the XML file so far (print every 500'000)
<current file title>
1483042     #  <- smaller files written to disk so far

and this error:

lbwiki2.rb:114:in `initialize': Operation not supported - /media/Philips External Hard Disk/en_wiki/Warnock's\ Dilemma (Errno::EOPNOTSUPP)
	from lbwiki2.rb:114:in `new'
	from lbwiki2.rb:114
	from lbwiki2.rb:85:in `each'
	from lbwiki2.rb:85

In this line 114, there's a File.new for the next small file to be created. The spaces in the file name are no problem.
I am using Ubuntu 8.10 (32 bit)  + ruby-1.8.7-p72. 

I cannot create any files on the disk anymore, neither with Ruby nor on the command line. This works
again if I delete some file/folder.

So there must be some maximum amount of files that this NTFS disk can handle, which is way below 2**32-1 ...
What can I do here ?


Thank you very much!

Best regards,

Axel
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