[TriLUG] Failure Copying Large Amounts of Data

[Ron Kelley]

Just run a standard "mke2fs /dev/sdc2", mount the volume, then run "df -i".  If you still get 238K inodes, something is wrong.  You can use the "-t" option with mke2fs to support various filesizes.  Look at /etc/mke2fs.conf for an example...


-Ron



On Apr 16, 2010, at 1:51 PM, boyle at laue.chem.ncsu.edu wrote:

> 
> 
> On 16 Apr, Glenn Starling wrote:
>> Do you have sufficient swap file space for the copy program to use as it
>> does it's work?
> 
> The system has 1GB of main memory and 2GB of swap, so I don't think that
> is the problem.
> 
> To respond to Steve Litt:  only the backup drive is a USB drive the
> other is IDE.
> 
> In my second post in this thread, I noted  that the 'df -i' command
> indicates there were 0 available inodes. 
> 
> Since that post, I ran
> dumpe2fs on filesystem "A" (/dev/sdb1) and "C" (/dev/sdc2).
> Excerpt from the output for "A" and "C" side by side:
> 		A		C
> Inode count:		19546112		238592
> Block count:		39072080		61059048
> Free blocks:		14014352		44077885
> Free inodes:              19202016				0
> First block:		0		0
> Block size:		4096		4096
> Fragment size:		4096		4096
> Blocks per group:		32768		32768
> Fragments per group: 	32768			32768
> Inodes per group:		16384		128
> Inode blocks per group:   512				8
> 
> The places where C falls short are on "Inode count" (only 238K !),
> "Inodes per group" ( 128 vs 16384) and "Inode blocks per group" (8 vs.
> 512).
> 
> The question is:  how to remake the file system so that I get a higher
> number of inodes and inodes per group as well as inode blocks per group?
> 
> 
> I am studying the mke2fs man page now and trying to do some web
> research.  I remember reading several years ago (or more) about the
> relationships between number of inodes and block size and other
> filesystem parameters.
> 
> Thanks for the suggestions.  Filesystem configuration really isn't my
> strong point, so I'll happily accept any other advice or tips.
> 
> Paul
> 
> 
> -- 
> Paul D. Boyle			    |	boyle at laue.chem.ncsu.edu
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