On 2/17/20 3:02 PM, Alwin Antreich wrote: > and add the memory target for OSDs, included since Luminous. As well as > distinguish the memory usage between the OSD backends. > > Signed-off-by: Alwin Antreich <a.antre...@proxmox.com> > --- > pveceph.adoc | 13 ++++++++++--- > 1 file changed, 10 insertions(+), 3 deletions(-) > > diff --git a/pveceph.adoc b/pveceph.adoc > index b3bbadf..8dc8568 100644 > --- a/pveceph.adoc > +++ b/pveceph.adoc > @@ -86,9 +86,16 @@ provide enough resources for stable and durable Ceph > performance. > .Memory > Especially in a hyper-converged setup, the memory consumption needs to be > carefully monitored. In addition to the intended workload from virtual > machines > -and container, Ceph needs enough memory available to provide good and stable > -performance. As a rule of thumb, for roughly 1 TiB of data, 1 GiB of memory > -will be used by an OSD. OSD caching will use additional memory. > +and containers, Ceph needs enough memory available to provide excellent and > +stable performance. > + > +As a rule of thumb, for roughly **1 TiB of data, 1 GiB of memory** will be > used > +by an OSD. Especially during recovery, rebalancing or backfilling. > + > +The daemon itself will use additional memory. The Bluestore backend of the > +daemon requires by default **3-5 GiB of memory** (adjustable). In contrast, > the > +legacy Filestore backend uses the OS page cache and the memory consumption is > +generally related to PGs of an OSD daemon. > > .Network > We recommend a network bandwidth of at least 10 GbE or more, which is used >
applied, thanks! _______________________________________________ pve-devel mailing list pve-devel@pve.proxmox.com https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
