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*" -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140721/f9c0e346/attachment.htm>
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