On Mon, Dec 19, 2022 at 12:20 PM Ramana Krisna Venkatesh Raja <rraja@xxxxxxxxxx> wrote: > > On Mon, Dec 19, 2022 at 11:14 AM Stefan Kooman <stefan@xxxxxx> wrote: > > > > On 12/19/22 16:46, Christoph Adomeit wrote: > > > Hi, > > > > > > we are planning an archive with cephfs containing 2 Petabytes of Data > > > on 200 slow S-ATA Disks on a single cephfs with 150 subdirectories. The Disks > > > will be around 80% full (570 TB of Data, 3-way replication). > > > > > > Since this is an archive most of the data will be written once and read only > > > sometimes. Deletions are very seldom. Changes of the filesystem in general > > > are not very often. > > > > > > The cephfs is exported via samba. > > > > > > Now I am thinking about how we can protect the data from accidental deletion > > > or from malicious deletion from people knowing the login data. > > > > > > Also protection from administrator errors might be a good idea, imagine an > > > admin on shell running an rsync --delete /usbdisk/ /cephfs/ > > > > This might help when using kernel cephfs mounts: > > > > https://docs.ceph.com/en/latest/cephfs/client-auth/#root-squash > > The "root-squash" feature currently doesn't work as expected, > https://tracker.ceph.com/issues/56067 . So you wouldn't want to use it > until the bug is fixed. > Maybe it's better to remove the "root-squash" section from the docs until the feature is fixed, or include a warning in the docs that the feature doesn't work? -Ramana > -Ramana > > > > > Gr. Stefan > > _______________________________________________ > > 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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