Currently the biggest HDD is 20TB. 1 exabyte means 50.000 OSD cluster(without replication or EC) AFAIK Cern did some tests using 5000 OSDs. I don't know any larger clusters than Cern's. So I am not saying it is impossible but it is very unlikely to grow a single Ceph cluster to that size. Maybe you should search for alternatives, like hdfs which I know/worked with more than 50.000 HDDs without problems. On Mon, Jun 20, 2022 at 10:46 AM Arnaud M <arnaud.meauzoone@xxxxxxxxx> wrote: > > Hello to everyone > > I have looked on the internet but couldn't find an answer. > Do you know the maximum size of a ceph filesystem ? Not the max size of a > single file but the limit of the whole filesystem ? > > For example a quick search on zfs on google output : > A ZFS file system can store up to *256 quadrillion zettabytes* (ZB). > > I would like to have the same answer with cephfs. > > And if there is a limit, where is this limit coded ? Is it hard-coded or is > it configurable ? > > Let's say someone wants to have a cephfs up to ExaByte, would it be > completely foolish or would the system, given enough mds and servers and > everything needed, be usable ? > > Is there any other limit to a ceph filesystem ? > > All the best > > Arnaud > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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