The following settings allow the Ceph OSD daemon to determine the filesystem type, mount options, as well as some other useful settings:
- osd_mkfs_options_xfs: At the time of OSD creation, Ceph will use these xfs options to create the OSD filesystem:
osd_mkfs_options_xfs = "-f -i size=2048
- osd_mount_options_xfs: It supplies the xfs filesystem mount options to OSD. When Ceph is mounting an OSD, it will use the following options for OSD filesystem mounting:
osd_mount_options_xfs = "rw,noatime,largeio, inode64,swalloc,logbufs=8,logbsize=256k,delaylog,allocsize=4M"
- osd_max_write_size: The maximum size in MB an OSD can write at a time:
osd_max_write_size = 256
- osd_client_message_size_cap: The largest client data message ...