thanks a lot to help me confirm that SSD speed up OSD's journal to improve perfermance. one server need seprate ssd 2014-07-21 21:50 GMT+07:00 Iban Cabrillo <cabrillo at ifca.unican.es>: > Yes, Indra is right. Osds and journal must be on the same server. > Regards, I > El 21/07/2014 16:38, "Indra Pramana" <indra at sg.or.id> escribi?: > > AFAIK, it's not possible. A journal should be on the same server as the >> OSD it serves. CMIIW. >> >> Thank you. >> >> >> On Mon, Jul 21, 2014 at 10:34 PM, ???? <onlydebian at gmail.com> wrote: >> >>> thanks for ur reply. >>> >>> in ur case, u deploy 3 osds in one server. my case is that 3 osds in 3 >>> server. >>> how to do ? >>> >>> >>> 2014-07-21 17:59 GMT+07:00 Iban Cabrillo <cabrillo at ifca.unican.es>: >>> >>> Dear, >>>> I am not an expert, but Yes This is possible. >>>> I have RAID1 SAS disk journal for 3 journal SATA osds (maybe this is >>>> not the smartest solution) >>>> >>>> When you preparere the OSDs for example: >>>> >>>> ceph-deploy --verbose osd prepare >>>> cephosd01:/dev/"sdd_device":"path_to journal_ssddisk_X" >>>> >>>> path_to journal_ssddisk_X must exists (mkdir -p /var/ceph/osd1; touch >>>> /var/ceph/osd1/journal) >>>> for example: >>>> >>>> ceph-deploy --verbose osd prepare >>>> cephosd01:/dev/sdg:/var/ceph/osd1/journal >>>> ceph-deploy --verbose osd prepare >>>> cephosd01:/dev/sdf:/var/ceph/osd2/journal >>>> ceph-deploy --verbose osd prepare >>>> cephosd01:/dev/sdh:/var/ceph/osd3/journal >>>> >>>> Then activate the OSDs... >>>> >>>> ceph-deploy --verbose osd activate >>>> cephosd01:/dev/sdg1:/var/ceph/osd1/journal >>>> ceph-deploy --verbose osd activate >>>> cephosd01:/dev/sdf1:/var/ceph/osd2/journal >>>> ceph-deploy --verbose osd activate >>>> cephosd01:/dev/sdh1:/var/ceph/osd3/journal >>>> >>>> regards, I >>>> >>>> >>>> 2014-07-21 12:30 GMT+02:00 ???? <onlydebian at gmail.com>: >>>> >>>>> i have only one SSD want to improve Ceph perfermnace. >>>>> Is possible to use one SSD journal hard disk for 3 OSD ? >>>>> >>>>> if it is possible ,how to config it ? >>>>> many thanks >>>>> >>>>> _______________________________________________ >>>>> ceph-users mailing list >>>>> ceph-users at lists.ceph.com >>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> ############################################################################ >>>> Iban Cabrillo Bartolome >>>> Instituto de Fisica de Cantabria (IFCA) >>>> Santander, Spain >>>> Tel: +34942200969 >>>> PGP PUBLIC KEY: >>>> http://pgp.mit.edu/pks/lookup?op=get&search=0xD9DF0B3D6C8C08AC >>>> >>>> ############################################################################ >>>> Bertrand Russell: >>>> *"El problema con el mundo es que los est?pidos est?n seguros de todo y >>>> los inteligentes est?n llenos de dudas*" >>>> >>> >>> >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users at lists.ceph.com >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >>> >> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140721/ec16e0d9/attachment.htm>
 |