Hi, I'm reading the documentation about creating new OSD's and I'm see:
"The foregoing example assumes a disk dedicated to one Ceph OSD Daemon, and a path to an SSD journal partition. We recommend storing the journal on a separate drive to maximize throughput. You may dedicate a single drive for the journal too (which may be expensive) or place the journal on the same disk as the OSD (not recommended as it impairs performance). In the foregoing example we store the journal on a partitioned solid state drive." From: http://ceph.com/docs/master/rados/deployment/ceph-deploy-osd/ So I would like to create my journals on the same SSD as I have my OS (RAID1). Is this good practise to initiate a new disk with: ceph-deploy disk zap osdserver1:sdb ceph-deploy osd prepare osdserver1:sdb:/dev/sda parted info on sda is: Number Start End Size File system Name Flags 1 1049kB 211MB 210MB ext4 boot 2 211MB 21.2GB 21.0GB ext4 3 21.2GB 29.6GB 8389MB linux-swap(v1) There is enough space for many 5G journal patitions on sda
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