>> * Hardware raid with Battery Backed write-cache - will allow OSD to ack >> writes before hitting spinning rust. > > Disagree. See my litany from a few months ago. Use a plain, IT-mode HBA. > Take the $$ you save and put it toward building your cluster out of SSDs > instead of HDDs. That way you donâ??t have to mess with the management > hassles of maintaining and allocating external WAL+DB partitions too. These things are not really comparable - are they? Cost of SSD vs. HDD is still in the 6:1 favor of HHD's. Yes SSD would be great but not nessesarily affordable - or have I missed something that makes the math work ? -- Jesper _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |