On 10/5/21 17:06, Zakhar Kirpichenko wrote:
Hi,
I built a CEPH 16.2.x cluster with relatively fast and modern hardware, and
its performance is kind of disappointing. I would very much appreciate an
advice and/or pointers :-)
The hardware is 3 x Supermicro SSG-6029P nodes, each equipped with:
2 x Intel(R) Xeon(R) Gold 5220R CPUs
384 GB RAM
2 x boot drives
2 x 1.6 TB Micron 7300 MTFDHBE1T6TDG drives (DB/WAL)
2 x 6.4 TB Micron 7300 MTFDHBE6T4TDG drives (storage tier)
9 x Toshiba MG06SCA10TE 9TB HDDs, write cache off (storage tier)
2 x Intel XL710 NICs connected to a pair of 40/100GE switches
That's a lot of CPU cores and a lot of RAM for mostly spinners. Why is
that? Will this be a hyperconverged solution?
Can you repeat the tests with fio with rados and rbd as ioengines on a
bare metal host?
Gr. Stefan
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