2015-10-20 16:00 GMT+02:00 Wido den Hollander <wido@xxxxxxxx>: ... > The system consists out of 39 hosts: > > 2U SuperMicro chassis: > * 80GB Intel SSD for OS > * 240GB Intel S3700 SSD for Journaling + Bcache > * 6x 3TB disk I'm currently testing a similar setup, but it turns out that setup and operations are a bit clumsy: 1. ceph-disk-prepare when given the bcache device always wants to create a partition on it, which isn't possible, so as a workaround I have to manually put a FS onto the device, mount it and give ceph-disk the mount-point. 2. Since there is no partition, there is also no type UUID, so the usual udev based autostart mechanisms do not work. Running "ceph-disk activate /dev/bcache0" works fine though. Did you come up with some more clever solutions for this? Also, do you have some experience with broken disks? I'm wondering if one failing disk will affect performance for the others running in the same cache set. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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