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/ Also encryption protection is a matter. What would be a good way to protect from these ? Daily Snapshots might be a good idea. But I have no idea what will happen if i create a snapshot in the root of the 2PB cephfs ? Will it be no problem or will it block the 2PB Cluster for some days and then crash or run out of space ? Is it absolutely stable ? I never made experiences with this large filesystem size. And for testing, it takes days to load the data so there is no capacity for try and error. Any ideas ? Thanks Christoph _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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