Hi Vincent, On 12.07.2016 15:03, Vincent Godin wrote: > Hello. > > I've been testing Intel 3500 as journal store for few HDD-based OSD. I > stumble on issues with multiple partitions (>4) and UDEV (sda5, sda6,etc > sometime do not appear after partition creation). And I'm thinking that > partition is not that useful for OSD management, because linux do no > allow partition rereading with it contains used volumes. > > So my question: How you store many journals on SSD? My initial thoughts: > > 1) filesystem with filebased journals > 2) LVM with volumes 1+2 has an performance impact. I do an trick and use partition labels for the journal. [osd] osd_journal = /dev/disk/by-partlabel/journal-$id
Due this i'm independed from linux device-naming. Udo _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
