Hi, We plan to create image with this format, how do you think about it? thanks.
rbd create myimage --size 102400 --order 25 --stripe-unit 4K --stripe-count 32 --image-feature layering --image-feature striping 2016-05-10 21:19 GMT+08:00 <[email protected]>: > Hi, > > > Am 2016-05-10 05:48, schrieb Geocast: > >> Hi members, >> >> We have 21 hosts for ceph OSD servers, each host has 12 SATA disks (4TB >> each), 64GB memory. >> ceph version 10.2.0, Ubuntu 16.04 LTS >> The whole cluster is new installed. >> >> Can you help check what the arguments we put in ceph.conf is reasonable or >> not? >> thanks. >> >> [osd] >> osd_data = /var/lib/ceph/osd/ceph-$id >> osd_journal_size = 20000 >> osd_mkfs_type = xfs >> osd_mkfs_options_xfs = -f >> filestore_xattr_use_omap = true >> filestore_min_sync_interval = 10 >> filestore_max_sync_interval = 15 >> filestore_queue_max_ops = 25000 >> filestore_queue_max_bytes = 10485760 >> filestore_queue_committing_max_ops = 5000 >> filestore_queue_committing_max_bytes = 10485760000 >> journal_max_write_bytes = 1073714824 >> journal_max_write_entries = 10000 >> journal_queue_max_ops = 50000 >> journal_queue_max_bytes = 10485760000 >> osd_max_write_size = 512 >> osd_client_message_size_cap = 2147483648 >> osd_deep_scrub_stride = 131072 >> osd_op_threads = 8 >> osd_disk_threads = 4 >> osd_map_cache_size = 1024 >> osd_map_cache_bl_size = 128 >> osd_mount_options_xfs = "rw,noexec,nodev,noatime,nodiratime,nobarrier" >> > I have this settings (to avoid fragmentation): > osd mount options xfs = > "rw,noatime,inode64,logbufs=8,logbsize=256k,allocsize=4M" > osd mkfs options xfs = "-f -i size=2048" > > Udo >
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