If you're using cephadm or other container deployment scheme, upgrades shouldn't be affected. When using a traditional package-based install, there can be snags in the unlikely event of a system rebooting at exactly the wrong time. I personally prefer to keep mon/mgr services on dedicated, modest nodes, having experienced unexpected effects from mon restarts in the past. But with recent Ceph releases, the daemons are better-behaved and lots of people converge in just this way. If your nodes do not have extra RAM available for mon/MDS/etc, you might starve the OSDs a bit. MDS is not multithreaded so it benefits from high freq CPU and doesn't care about cores. Some people thus tie MDS to specifically-chosen systems. > On Aug 23, 2024, at 11:10 AM, Phong Tran Thanh <tranphong079@xxxxxxxxx> wrote: > > This is my first time setting up a Ceph cluster for OpenStack. Will > running both the Mon service and the OSD service on the same node affect > maintenance or upgrades in the future? While running Mon, MDS, and OSD > services on the same node does offer some benefits, could someone provide > me with additional advice? > > Vào Th 6, 23 thg 8, 2024 vào lúc 17:31 Bogdan Adrian Velica < > vbogdan@xxxxxxxxx> đã viết: > >> Ah, for OpenStack.. >> Yeah I've seen setups like that so it should be fine... >> >> On Fri, Aug 23, 2024 at 1:27 PM Bogdan Adrian Velica <vbogdan@xxxxxxxxx> >> wrote: >> >>> Hi, >>> >>> MON servers typically don't consume a lot of resources, so it's fairly >>> common to run MGR/MON daemons on the same machines as the OSDs in a >>> cluster. Do you have any insights on the type of workload or data you plan >>> to use with your Ceph cluster? >>> >>> Thank you, >>> Bogdan Velica >>> croit.io >>> >>> On Fri, Aug 23, 2024 at 12:05 PM Phong Tran Thanh <tranphong079@xxxxxxxxx> >>> 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. >>>> >>>> -- >>>> Email: tranphong079@xxxxxxxxx >>>> Skype: tranphong079 >>>> _______________________________________________ >>>> ceph-users mailing list -- ceph-users@xxxxxxx >>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx >>>> >>> > > -- > Trân trọng, > ---------------------------------------------------------------------------- > > *Tran Thanh Phong* > > 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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