On Fri, Jun 08, 2018 at 12:13:34PM +0100, Thouraya TH wrote: > Hi, > > In my cluster, i have 3 containers per host and i have 10 hosts. > all containers are ubuntu containers. > My question: the rootfs of these containers are the same ? > i have duplicated files in different containers repository ? > > > > Thank you so much for answers. > Best regards.
Depends on your storage backend, all backends except the directory one will use copy-on-write for deltas from the image used for the container and their current state. If using ZFS and have quite a bit of spare RAM you can also turn on deduplication on your ZPOOL which will then deduplicate writes as they happen, possibly saving you a lot of disk space. -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
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