Hi Wido, > As a Ceph consultant I get numerous calls throughout the year to help people > with getting their broken Ceph clusters back online. > > The causes of downtime vary vastly, but one of the biggest causes is that > people use replication 2x. size = 2, min_size = 1. We are building a Ceph cluster for our OpenStack and for data integrity reasons we have chosen to set size=3. But we want to continue to access data if 2 of our 3 osd server are dead, so we decided to set min_size=1. Is it a (very) bad idea? Regards / Cordialement, ___________________________________________________________________ PSA Groupe Loïc Devulder (loic.devulder@xxxxxxxx) Senior Linux System Engineer / Linux HPC Specialist DF/DDCE/ISTA/DSEP/ULES - Linux Team BESSONCOURT / EXTENSION RIVE DROITE / B19 Internal postal address: SX.BES.15 Phone Incident - Level 3: 22 94 39 Phone Incident - Level 4: 22 92 40 Office: +33 (0)9 66 66 69 06 (27 69 06) Mobile: +33 (0)6 87 72 47 31 ___________________________________________________________________ This message may contain confidential information. If you are not the intended recipient, please advise the sender immediately and delete this message. For further information on confidentiality and the risks inherent in electronic communication see http://disclaimer.psa-peugeot-citroen.com. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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