[ceph-users] Re: NVME Namspaces vs SPDK

2022-02-05 Thread Mark Nelson
4 NVMe drives per OSD only really makes sense if you have extra CPU to spare and very fast drives.  It can have higher absolute performance when you give OSDs unlimited CPUs, but it tends to be slower (and less efficient) in CPU limited scenarios in our testing (ymmv).  We've got some

[ceph-users] NVME Namspaces vs SPDK

2022-02-05 Thread Lazuardi Nasution
Hi, I have read some benchmarks which recommends of using 4 OSDs per NVME drive. Until now, I'm using 4 NVME namespaces per drive for doing that way. If I'm using SPDK, do I still need to follow 4 OSDs per NVME drive way? Is there any benchmark related to SPDK and number of OSDs per NVME drive?

[ceph-users] Re: The Return of Ceph Planet

2022-02-05 Thread Kai Stian Olstad
On 04.02.2022 00:00, Mike Perez wrote: If you have a Ceph category feed you would like added; please email me your RSS feed URL. While you are mention RSS, any reason for the RSS feed on the ceph.com blog/news was removed? It used to be https://ceph.com/community/blog/feed/ but after the