2012/11/7 Wido den Hollander <wido@xxxxxxxxx>: > Except that SSDs will mainly fail due to the amount of write cycles they had > to endure. > > So in RAID-1 your SSDs will fail at almost the same time. > > With for example 8 OSDs in a server you better spread them out 50/50 over > two SSDs. But the OS should be installed on SSD, to allow the use of the whole SATA/SAS disk as OSDs. Without RAID-1 between SSDs, a disk failure will result it the whole node down. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html