[CentOS-mirror] rsync -H flag
centos at miuku.net
Sat Oct 19 13:55:35 UTC 2013
Hi guys, CentOS 5.10 is currently being synced to mirrors.
While monitoring the synchronization status, I noticed that there are a
number of mirrors that apparently don't use the -H flag to preserve hard
links. Using that flag would have multiple benefits:
1) Reduced hard disk space. Some i386 packages are also present in the
x86_64 tree. These are hard links with their counterparts in the i386
directory. By using the hard links, those files would need to be stored
only once on your hard disk.
2) Faster sync times at release. Almost every package in 5.10 is already
in a 5.9 directory -- either cr, fasttrack, os or updates. Those not
using the rsync -H flag will now need to download the 5.10 os RPMs,
instead of just making more hard links to the already existing files.
Obviously this does not apply to the .iso files, those will need to be
downloaded in any case.
3) Bandwidth consumption would also be reduced, both from your side and
from the CentOS msync service side. The msync servers are under a very
heavy burden at release times, therefore anything that reduces the
traffic would help everyone.
For reference: http://wiki.centos.org/HowTos/CreatePublicMirrors
More information about the CentOS-mirror