>From how I understand it, that setting is a rev-limiter to prevent users from creating HUGE sparse files and then wasting cluster resources firing off deletes. We have ours set to 32T and haven't seen any issues with large files. -- Paul Mezzanini Sr Systems Administrator / Engineer, Research Computing Information & Technology Services Finance & Administration Rochester Institute of Technology o:(585) 475-3245 | pfmeec@xxxxxxx CONFIDENTIALITY NOTE: The information transmitted, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy any copies of this information. ------------------------ ________________________________________ From: Adam Tygart <mozes@xxxxxxx> Sent: Friday, December 11, 2020 1:59 PM To: Mark Schouten Cc: ceph-users; Patrick Donnelly Subject: Re: CephFS max_file_size I've had this set to 16TiB for several years now. I've not seen any ill effects. -- Adam On Fri, Dec 11, 2020 at 12:56 PM Patrick Donnelly <pdonnell@xxxxxxxxxx> wrote: > > Hi Mark, > > On Fri, Dec 11, 2020 at 4:21 AM Mark Schouten <mark@xxxxxxxx> wrote: > > There is a default limit of 1TiB for the max_file_size in CephFS. I altered that to 2TiB, but I now got a request for storing a file up to 7TiB. > > > > I'd expect the limit to be there for a reason, but what is the risk of setting that value to say 10TiB? > > There is no known downside. Let us know how it goes! > > -- > Patrick Donnelly, Ph.D. > He / Him / His > Principal Software Engineer > Red Hat Sunnyvale, CA > GPG: 19F28A586F808C2402351B93C3301A3E258DD79D > _______________________________________________ > 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 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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