Hey, sorry if the question doesnt really make a lot of sense I am
talking from almost complete ignorace of the topic, but there is not a
lof info about it

I am planning about creating a cluster with 7~10 NL-SAS HDD and 1 nmve
per host.

The nmve would be used as rocksDB and journal for each osd (hdd block
device) but I am worried about that being a bottleneck as all the osds
would share the same device.

I've been reading about spdk for nmve devices and I have seen that
blueStore configuration supports it
(http://docs.ceph.com/docs/master/rados/configuration/bluestore-config-ref/#spdk-usage)
but I would like the know the current status of the spdk and if I could
use it for rocksDB device and not for block device

I've been reading also about RDMA and I would like to know if I could
use it in this scenario, all  I have found was using hole nmve devices
for block and RocksDB

I would really apreciate if someone could introduce me about this topic,
its really interesting but also confusing at the same time.

Thanks a lot!

-- 
------------------------------------------------------------------------
*Jorge Pinilla López*
jorp...@unizar.es
Estudiante de ingenieria informática
Becario del area de sistemas (SICUZ)
Universidad de Zaragoza
PGP-KeyID: A34331932EBC715A
<http://pgp.rediris.es:11371/pks/lookup?op=get&search=0xA34331932EBC715A>
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