ceph 为ssd，sas osd设置不同的crush location
创建ssd rootceph osd crush add-bucket ssd root 创建hostgroup
ceph osd crush add-bucket ssd-hosts hostgroup
ceph osd crush move ssd-hosts root=ssd 创建host
ceph osd crush add-bucket ssd-m1 host
ceph osd crush add-bucket ssd-compute host
ceph osd crush add-bucket ssd-network hostceph osd crush move ssd-m1 hostgroup=ssd-hosts
ceph osd crush move ssd-compute hostgroup=ssd-hosts
ceph osd crush move ssd-network hostgroup=ssd-hosts 移动osd
ceph osd crush set osd.0 1.0 host=ssd-m1
ceph osd crush set osd.1 1.0 host=ssd-compute
ceph osd crush set osd.2 1.0 host=ssd-network 创建crush rule
ceph osd crush rule create-simple ssd ssd host firstn 查看crush rule
ceph osd crush rule dump
[
{
"rule_id": 0,
"rule_name": "replicated_ruleset",
"ruleset": 0,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -1,
"item_name": "default"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
},
{
"rule_id": 1,
"rule_name": "ssd",
"ruleset": 1,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -9,
"item_name": "ssd"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
}
]
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