As it is a lab environment, can i install the setup in a way to achieve less redundancy (replication factor) and more capacity?
How can i achieve that? On Wed, Aug 17, 2016 at 7:47 PM, Gaurav Goyal <er.gauravgo...@gmail.com> wrote: > Hello, > > Awaiting any suggestion please! > > > > > Regards > > On Wed, Aug 17, 2016 at 9:59 AM, Gaurav Goyal <er.gauravgo...@gmail.com> > wrote: > >> Hello Brian, >> >> Thanks for your response! >> >> Can you please elaborate on this. >> >> Do you mean i must use >> >> 4 x 1TB HDD on each nodes rather than 2 x 2TB? >> >> This is going to be a lab environment. Can you please suggest to have >> best possible design for my lab environment. >> >> >> >> On Wed, Aug 17, 2016 at 9:54 AM, Brian :: <b...@iptel.co> wrote: >> >>> You're going to see pretty slow performance on a cluster this size >>> with spinning disks... >>> >>> Ceph scales very very well but at this type of size cluster it can be >>> challenging to get nice throughput and iops.. >>> >>> for something small like this either use all ssd osds or consider >>> having more spinning osds per node backed by nvme or ssd journals.. >>> >>> >>> >>> On Wed, Aug 17, 2016 at 1:14 PM, Gaurav Goyal <er.gauravgo...@gmail.com> >>> wrote: >>> > Dear Ceph Users, >>> > >>> > Can you please address my scenario and suggest me a solution. >>> > >>> > Regards >>> > Gaurav Goyal >>> > >>> > On Tue, Aug 16, 2016 at 11:13 AM, Gaurav Goyal < >>> er.gauravgo...@gmail.com> >>> > wrote: >>> >> >>> >> 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. >>> >>> >>> >>> ________________________________ >>> >>> >>> >> >>> > >>> > >>> > _______________________________________________ >>> > ceph-users mailing list >>> > ceph-users@lists.ceph.com >>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> > >>> >> >> >
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