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