ceph 为ssd，sas osd设置不同的crush location

左手的ㄟ右手 2022-01-10 19:43 385阅读 0赞

创建ssd root

ceph 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 host

ceph 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"
                }
            ]
        }
    ]

转载于:https://blog.51cto.com/penguintux/1686479