[Lustre-discuss] MDT backup (using tar) taking very long

Bernd Schubert bs_lists at aakef.fastmail.fm
Thu Sep 2 08:27:19 PDT 2010

On Thursday, September 02, 2010, Frederik Ferner wrote:
> Hi List,
> we are currently reviewing our backup policy for our Lustre file system
> as backups of the MDT are taking longer and longer.

Yes, that is due to the size-on-mds feature, which was introduced into  See bug 


It has a patch, that also got accepted in upstream tar last week. You may find 
updated RHEL5 tar packages on my home page:



Bernd Schubert
DataDirect Networks

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