Hi, I use the ext4-parameters like Christian Balzer wrote in one posting: osd mount options ext4 = "user_xattr,rw,noatime,nodiratime" osd_mkfs_options_ext4 = -J size=1024 -E lazy_itable_init=0,lazy_journal_init=0 The osd-journals are on SSD-Partitions (without filesystem). IMHO ext4 don't support an different journal-device, like xfs do, but I assume you mean the osd-jounal and not the filesystem journal?! Udo Am 07.08.2015 16:13, schrieb Burkhard Linke: > Hi, > > > On 08/07/2015 04:04 PM, Udo Lembke wrote: >> Hi, >> some time ago I switched all OSDs from XFS to ext4 (step by step). >> I had no issues during mixed osd-format (the process takes some weeks). >> >> And yes, for me ext4 performs also better (esp. the latencies). > Just out of curiosity: > > Do you use a ext4 setup as described in the documentation? Did you try to use external ext4 journals on SSD? > > Regards, > Burkhard > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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