On 8/23/24 10:58, Phong Tran Thanh wrote: > Hi Ceph users > > I am designing a CEPH system with 6 servers running full NVMe. Do I need to > use 3 separate servers to run the MON services that communicate with > OpenStack, or should I integrate the MON services into the OSD servers? > What is the recommendation? Thank you. We often co-locate MONs, MGRs and OSDs (using LXD containers) but you need to make sure you're meeting resource requirements for all. See https://docs.ceph.com/en/latest/start/hardware-recommendations/ for some guidelines. This is obviously important for disk space, but also for RAM. Important because while memory consumption of those services might be deceptively low while the cluster is healthy, the memory usage during recovery and rebalancing could be much higher, so be sure to give it some room. Also, especially NVMe OSDs benefit from additional RAM in terms of performance > > -- > Email: tranphong079@xxxxxxxxx > Skype: tranphong079 > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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