--Apple-Mail-3A6654D0-314E-489D-8AFD-B591A0E708E2 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Yaniv,
Il giorno 18 dic 2016, alle ore 17:37, Yaniv Kaul <ykaul@redhat.com> ha sc= ritto: =20 =20 =20
On Sun, Dec 18, 2016 at 6:21 PM, Alessandro De Salvo <Alessandro.DeSalvo@= roma1.infn.it> wrote: Hi, having a 3-node ceph cluster is the bare minimum you can have to make it w= orking, unless you want to have just a replica-2 mode, which is not safe. =20 How well does it perform?
One if the ceph clusters we use had exactly this setup: 3 DELL R630 (ceph je= wel), 6 1TB NL-SAS disks so 3 mons, 6 osds. We bound the cluster network to a= dedicated interface, 1Gbps. I can say it works pretty well, the performance= reaches up to 100MB/s per rbd device, which is the expected maximum for the= network connection. Resiliency is also pretty good, we can loose 2 osds (I.= e. a full machine) without impacting on the performance.
=20
It's not true that ceph is not easy to configure, you might use very easi= ly ceph-deploy, have puppet configuring it or even run it in containers. Usi= ng docker is in fact the easiest solution, it really requires 10 minutes to m= ake a cluster up. I've tried it both with jewel (official containers) and kr= aken (custom containers), and it works pretty well. =20 This could be a great blog post in ovirt.org site - care to write somethin= g describing the configuration and setup?
Oh sure, if it may be of general interest I'll be glad to. How can I do it? := -) Cheers, Alessandro=20
Y. =20
The real problem is not creating and configuring a ceph cluster, but usin= g it from ovirt, as it requires cinder, i.e. a minimal setup of openstack. W= e have it and it's working pretty well, but it requires some work. For your r= eference we have cinder running on an ovirt VM using gluster. Cheers, =20 Alessandro=20 =20
Il giorno 18 dic 2016, alle ore 17:07, Yaniv Kaul <ykaul@redhat.com> ha s= critto: =20 =20 =20
On Sun, Dec 18, 2016 at 3:29 PM, rajatjpatel <rajatjpatel@gmail.com> wr= ote: =E2=80=8BDear Team, =20 We are using Ovirt 4.0 for POC what we are doing I want to check with a= ll Guru's Ovirt. =20 We have 2 hp proliant dl 380 with 500GB SAS & 1TB *4 SAS Disk and 500GB= SSD. =20 Waht we are done we have install ovirt hyp on these h/w and we have phy= sical server where we are running our manager for ovirt. For ovirt hyp we ar= e using only one 500GB of one HDD rest we have kept for ceph, so we have 3 n= ode as guest running on ovirt and for ceph. My question you all is what I am= doing is right or wrong. =20 I think Ceph requires a lot more resources than above. It's also a bit m= ore challenging to configure. I would highly recommend a 3-node cluster with= Gluster. Y. =20 =20 Regards Rajat=E2=80=8B =20 =20 _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users =20 =20
Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users =20
--Apple-Mail-3A6654D0-314E-489D-8AFD-B591A0E708E2 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D= utf-8"></head><body dir=3D"auto"><div></div><div>Hi Yaniv,</div><div><br>Il g= iorno 18 dic 2016, alle ore 17:37, Yaniv Kaul <<a href=3D"mailto:ykaul@re= dhat.com">ykaul@redhat.com</a>> ha scritto:<br><br></div><blockquote type= =3D"cite"><div><div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div clas= s=3D"gmail_quote">On Sun, Dec 18, 2016 at 6:21 PM, Alessandro De Salvo <span= dir=3D"ltr"><<a href=3D"mailto:Alessandro.DeSalvo@roma1.infn.it" target=3D= "_blank">Alessandro.DeSalvo@roma1.infn.it</a>></span> wrote:<br><blockquo= te class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc sol= id;padding-left:1ex"><div dir=3D"auto"><div></div><div>Hi,</div><div>having a= 3-node ceph cluster is the bare minimum you can have to make it working, un= less you want to have just a replica-2 mode, which is not safe.</div></div><= /blockquote><div><br></div><div>How well does it perform?</div></div></div><= /div></div></blockquote><div><br></div><div>One if the ceph clusters we use h= ad exactly this setup: 3 DELL R630 (ceph jewel), 6 1TB NL-SAS disks so 3 mon= s, 6 osds. We bound the cluster network to a dedicated interface, 1Gbps. I c= an say it works pretty well, the performance reaches up to 100MB/s per rbd d= evice, which is the expected maximum for the network connection. Resiliency i= s also pretty good, we can loose 2 osds (I.e. a full machine) without impact= ing on the performance.</div><br><blockquote type=3D"cite"><div><div dir=3D"= ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><div> </div>= <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px= #ccc solid;padding-left:1ex"><div dir=3D"auto"><div>It's not true that ceph= is not easy to configure, you might use very easily ceph-deploy, have puppe= t configuring it or even run it in containers. Using docker is in fact the e= asiest solution, it really requires 10 minutes to make a cluster up. I've tr= ied it both with jewel (official containers) and kraken (custom containers),= and it works pretty well.</div></div></blockquote><div><br></div><div>This c= ould be a great blog post in <a href=3D"http://ovirt.org">ovirt.org</a> site= - care to write something describing the configuration and setup?</div></di= v></div></div></div></blockquote><div><br></div><div>Oh sure, if it may be o= f general interest I'll be glad to. How can I do it? :-)</div><div>Cheers,</= div><div><br></div><div> Alessandro </div><br><blockquote t= ype=3D"cite"><div><div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"= gmail_quote"><div>Y.</div><div> </div><blockquote class=3D"gmail_quote"= style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><di= v dir=3D"auto"><div>The real problem is not creating and configuring a ceph c= luster, but using it from ovirt, as it requires cinder, i.e. a minimal setup= of openstack. We have it and it's working pretty well, but it requires some= work. For your reference we have cinder running on an ovirt VM using gluste= r.</div><div>Cheers,</div><div><br></div><div> Alessandro <= /div><div><div class=3D"h5"><div><br>Il giorno 18 dic 2016, alle ore 17:07, Y= aniv Kaul <<a href=3D"mailto:ykaul@redhat.com" target=3D"_blank">ykaul@re= dhat.com</a>> ha scritto:<br><br></div><blockquote type=3D"cite"><div><di= v dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">= On Sun, Dec 18, 2016 at 3:29 PM, rajatjpatel <span dir=3D"ltr"><<a href=3D= "mailto:rajatjpatel@gmail.com" target=3D"_blank">rajatjpatel@gmail.com</a>&g= t;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .= 8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class= =3D"m_8035446879836480739m_-8155750194716306479gmail_signature"><div dir=3D"= ltr"><div>=E2=80=8BDear Team,<br><br>We are using Ovirt 4.0 for POC what we a= re doing I want to check with all Guru's Ovirt.<br><br>We have 2 hp proliant= dl 380 with 500GB SAS & 1TB *4 SAS Disk and 500GB SSD.<br><br>Waht we a= re done we have install ovirt hyp on these h/w and we have physical server w= here we are running our manager for ovirt. For ovirt hyp we are using only o= ne 500GB of one HDD rest we have kept for ceph, so we have 3 node as guest r= unning on ovirt and for ceph. My question you all is what I am doing is righ= t or wrong.<br></div></div></div></div></blockquote><div><br></div><div>I th= ink Ceph requires a lot more resources than above. It's also a bit more chal= lenging to configure. I would highly recommend a 3-node cluster with Gluster= .</div><div>Y.</div><div> </div><blockquote class=3D"gmail_quote" style= =3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D= "ltr"><div class=3D"m_8035446879836480739m_-8155750194716306479gmail_signatu= re"><div dir=3D"ltr"><div><br></div><div>Regards<br></div><div>Rajat=E2=80=8B= </div><br></div></div> </div> <br>______________________________<wbr>_________________<br> Users mailing list<br> <a href=3D"mailto:Users@ovirt.org" target=3D"_blank">Users@ovirt.org</a><br>= <a href=3D"http://lists.ovirt.org/mailman/listinfo/users" rel=3D"noreferrer"= target=3D"_blank">http://lists.ovirt.org/mailman<wbr>/listinfo/users</a><br=
<br></blockquote></div><br></div></div> </div></blockquote><blockquote type=3D"cite"><div><span>____________________= __________<wbr>_________________</span><br><span>Users mailing list</span><b= r><span><a href=3D"mailto:Users@ovirt.org" target=3D"_blank">Users@ovirt.org= </a></span><br><span><a href=3D"http://lists.ovirt.org/mailman/listinfo/user= s" target=3D"_blank">http://lists.ovirt.org/<wbr>mailman/listinfo/users</a><= /span><br></div></blockquote></div></div></div></blockquote></div><br></div>= </div> </div></blockquote></body></html>= --Apple-Mail-3A6654D0-314E-489D-8AFD-B591A0E708E2--