Hi wah peng, Hope you don't mind. Just for reference. A extreme case. If your ceph cluster have 3 osd disks on different osd server. Set pg number is 10240.(Just example) That's mean all these pg will create on 3 disks. Lost one OSD also means a lot of pg lost too. It may bring some trouble for re-balance and recovery.
In the other side, if you have 10000 OSDs but only set pg = 8. That mean some disks have no chance to using. Best wishes, Mika 2015-11-13 16:26 GMT+08:00 wah peng <wah_p...@yahoo.com.sg>: > why data lost happens? thanks. > > On 2015/11/13 ζζδΊ 16:13, Vickie ch wrote: > >> In the other side, pg number too large but OSD number too small that >> have a chance to cause data lost. >> > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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