Greeting folks, We are planning to build Ceph storage for mostly cephFS for HPC workload and in future we are planning to expand to S3 style but that is yet to be decided. Because we need mass storage, we bought the following HW. 15 Total servers and each server has a 12x18TB HDD (spinning disk) . We understand SSD/NvME would be best fit but it's way out of budget. Ceph recommends using a faster disk for wal/db if the data disk is slow and in my case I do have a slower disk for data. Question: 1. Let's say if i want to put a NvME disk for wal/db then what size i should buy. 2. Do I need to partition wal/db for each OSD or just a single partition can share for all OSDs? 3. Can I put the OS on the same disk where the wal/db is going to sit ? (This way i don't need to spend extra money for extra disk) Any suggestions you have for this kind of storage would be much appreciated. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |