Hello
I need your help to redesign my ceph storage network. As suggested in earlier discussions, i must not use SAN storage. So we have decided to removed it. Now we are ordering Local HDDs. My Network would be Host1 --> Controller + COmpute --> Local Disk 600GB Host 2--> Compute2 --> Local Disk 600GB Host 3 --> Compute2 Is it right setup for ceph network? For Host1 and Host2 , we are using 1 600GB disk for basic filesystem. Should we use same size storage disks for ceph environment or i can order Disks in size of 2TB for ceph cluster? Making it 2T X 2 on Host1 2T X 2 on Host 2 2T X 2 on Host 3 12TB in total. replication factor 2 should make it 6 TB? Regards Gaurav Goyal On Thu, Aug 4, 2016 at 1:52 AM, Bharath Krishna <bkris...@walmartlabs.com> wrote: > Hi Gaurav, > > There are several ways to do it depending on how you deployed your ceph > cluster. Easiest way to do it is using ceph-ansible with purge-cluster yaml > ready made to wipe off CEPH. > > https://github.com/ceph/ceph-ansible/blob/master/purge-cluster.yml > > You may need to configure ansible inventory with ceph hosts. > > Else if you want to purge manually, you can do it using: > http://docs.ceph.com/docs/hammer/rados/deployment/ceph-deploy-purge/ > > > Thanks > Bharath > > From: ceph-users <ceph-users-boun...@lists.ceph.com> on behalf of Gaurav > Goyal <er.gauravgo...@gmail.com> > Date: Thursday, August 4, 2016 at 8:19 AM > To: David Turner <david.tur...@storagecraft.com> > Cc: ceph-users <ceph-users@lists.ceph.com> > Subject: Re: [ceph-users] Fwd: Ceph Storage Migration from SAN storage to > Local Disks > > Please suggest a procedure for this uninstallation process? > > > Regards > Gaurav Goyal > > On Wed, Aug 3, 2016 at 5:58 PM, Gaurav Goyal <er.gauravgo...@gmail.com< > mailto:er.gauravgo...@gmail.com>> wrote: > > Thanks for your prompt > response! > > Situation is bit different now. Customer want us to remove the ceph > storage configuration from scratch. Let is openstack system work without > ceph. Later on install ceph with local disks. > > So I need to know a procedure to uninstall ceph and unconfigure it from > openstack. > > Regards > Gaurav Goyal > On 03-Aug-2016 4:59 pm, "David Turner" <david.tur...@storagecraft.com > <mailto:david.tur...@storagecraft.com>> wrote: > If I'm understanding your question correctly that you're asking how to > actually remove the SAN osds from ceph, then it doesn't matter what is > using the storage (ie openstack, cephfs, krbd, etc) as the steps are the > same. > > I'm going to assume that you've already added the new storage/osds to the > cluster, weighted the SAN osds to 0.0 and that the backfilling has > finished. If that is true, then your disk used space on the SAN's should > be basically empty while the new osds on the local disks should have a fair > amount of data. If that is the case, then for every SAN osd, you just run > the following commands replacing OSD_ID with the osd's id: > > # On the server with the osd being removed > sudo stop ceph-osd id=OSD_ID > ceph osd down OSD_ID > ceph osd out OSD_ID > ceph osd crush remove osd.OSD_ID > ceph auth del osd.OSD_ID > ceph osd rm OSD_ID > > Test running those commands on a test osd and if you had set the weight of > the osd to 0.0 previously and if the backfilling had finished, then what > you should see is that your cluster has 1 less osd than it used to, and no > pgs should be backfilling. > > HOWEVER, if my assumptions above are incorrect, please provide the output > of the following commands and try to clarify your question. > > ceph status > ceph osd tree > > I hope this helps. > > > Hello David, > > > > Can you help me with steps/Procedure to uninstall Ceph storage from > openstack environment? > > > > > > Regards > > Gaurav Goyal > ________________________________ > [cid:image001.jpg@01D1EE42.88EF6E60]<https://storagecraft.com> > > David Turner | Cloud Operations Engineer | StorageCraft Technology > Corporation<https://storagecraft.com> > 380 Data Drive Suite 300 | Draper | Utah | 84020 > Office: 801.871.2760 | Mobile: 385.224.2943<tel:385.224.2943> > > ________________________________ > If you are not the intended recipient of this message or received it > erroneously, please notify the sender and delete it, together with any > attachments, and be advised that any dissemination or copying of this > message is prohibited. > > ________________________________ > >
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