Is this the same issue as at "backup MDT question" (and follow up)
http://lists.lustre.org/pipermail/lustre-discuss/2009-April/010151.html
due to sparse files on MDT? Does tar take a lot of CPU?
Alex.
On May 30, 2012, at 5:02 PM, Andreas Dilger wrote:
The tar backup of the MDT is taking a very long time. So far it has
backed up 1.6GB of the 5.0GB used in nine hours. In watching the tar
process pointers to small or average size files are backed up
quickly
and at a consistent pace. When tar encounters a pointer/inode
belonging to a very large file (100GB+) the tar process stalls on
that
file for a very long time, as if it were trying to archive the real
filesize amount of data rather than the pointer/inode.
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