On Fri, 24 Jan 2014 16:53:14 +0000 Dietmar Maurer <[email protected]> wrote:
> > Do you have any performance measures which displays what influence running > > Ceph on the pve nodes has on pve itself? > > Running OSDs needs some CPU and memory. So that depends mainly on > the number of OSDs, and how fast they are. > So the impact on the existing pve-cluster will rice as the number of OSDs increase. Are we talking linear or exponential impact? Is there some rules to the amount of RAM that should be dedicated? Is this an absolute number or will that also depend on the number of disks? I see from Martin's notes that you use Seagate Constellation 4TB. Have you any experience with WD Red WD40EFRX 4 TB which seems to be available for half the price? -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael <at> rasmussen <dot> cc http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xD3C9A00E mir <at> datanom <dot> net http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE501F51C mir <at> miras <dot> org http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE3E80917 -------------------------------------------------------------- /usr/games/fortune -es says: Whenever anyone says, "theoretically," they really mean, "not really." -- Dave Parnas
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