[Techtalk] my home directory grew

Maria McKinley maria at shadlen.org
Tue Apr 21 08:49:05 UTC 2009

Chris Wilson wrote:
> Hi Maria,
> On Tue, 21 Apr 2009, Maria McKinley wrote:
>> I recently moved our home directories from a hard drive to a RAID array.
>> Initially I copied the home directory like this:
>> nohup cp -a /home/* /new_home/ &
>> Then, once it was done, I disconnected the machine from the network, so
>> no one could mess with the home directories, and used rsync:
>> rsync -av /home/ /new_home
>> For some reason after I was done copying, the home directories had grown
>> from 539G to 907G. There are no strange new directories, and it appears
>> that links have been preserved correctly. Anybody have any ideas what
>> could have happened?
> Do you mean it grew on the destination system between immediately before 
> the rsync and immediately after? I that case I would guess that somebody 
> added 360G of files in the mean time, or has been using sparse files.
> Or do you mean that it was 540G on the old system and 907G on the new? 
> In that case I'd guess a difference in filesystem or in cluster size of 
> the filesystem.

The latter. 540G on the old system, 907G on the new. That is over 350G. 
  Crazy. Glad the new RAID array is large...


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