Hi Albert, In this scenario, it is more consistent to work with subvolumes. Regarding security, you can use namespaces to isolate access at the OSD level. What Robert emphasizes is that creating pools dynamically is not without effect on the number of PGs and (therefore) on the architecture (PG per OSD, balancer, pg autoscaling, etc.) ________________________________________________________ Cordialement, *David CASIER* ________________________________________________________ Le mer. 24 janv. 2024 à 10:10, Albert Shih <Albert.Shih@xxxxxxxx> a écrit : > Le 24/01/2024 à 09:45:56+0100, Robert Sander a écrit > Hi > > > > > On 1/24/24 09:40, Albert Shih wrote: > > > > > Knowing I got two class of osd (hdd and ssd), and I have a need of ~ > 20/30 > > > cephfs (currently and that number will increase with time). > > > > Why do you need 20 - 30 separate CephFS instances? > > 99.99% because I'm newbie with ceph and don't understand clearly how > the autorisation work with cephfs ;-) > > If I say 20-30 it's because I currently have on my classic ZFS/NFS server > around 25 «datasets» exported to various server. > > But because you question I understand I can put many export «inside» one > cephfs. > > > > and put all my cephfs inside two of them. Or should I create for each > > > cephfs a couple of pool metadata/data ? > > > > Each CephFS instance needs their own pools, at least two (data + > metadata) > > per instance. And each CephFS needs at least one MDS running, better > with an > > additional cold or even hot standby MDS. > > Ok. I got for my ceph cluster two set of servers, first set are for > services (mgr,mon,etc.) with ssd and don't currently run any osd (but still > have 2 ssd not used), I also got a second set of server with HDD and 2 > SSD. The data pool will be on > the second set (with HDD). Where should I run the MDS and on which osd ? > > > > > > Il will also need to have ceph S3 storage, same question, should I > have a > > > designated pool for S3 storage or can/should I use the same > > > cephfs_data_replicated/erasure pool ? > > > > No, S3 needs its own pools. It cannot re-use CephFS pools. > > Ok thanks. > > Regards > -- > Albert SHIH 🦫 🐸 > France > Heure locale/Local time: > mer. 24 janv. 2024 09:55:26 CET > _______________________________________________ > 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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