• 在kolla中配置cinder ceph多后端

    我一台有2块硬盘，1块ssd（性能盘）和1块sata（容量盘），共有3台同样的服务器（控制计算存储融合）
    /dev/sdb ssd
    /dev/sdc sata

    配置globals.yml 文件

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    ceph_enable_cache: "yes"
    enable_ceph: "yes"
    enable_cinder: "yes"
    cinder_backend_ceph: "{{ enable_ceph }}"

    修改cinder配置（代码修改都在部署节点）

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    # vim /etc/kolla/config/cinder.conf
    [DEFAULT]
    enabled_backends = rbd-1,ssd
    [ssd]
    volume_driver = cinder.volume.drivers.rbd.RBDDriver
    volume_backend_name = ssd
    rbd_pool = volumes-cache
    rbd_ceph_conf = /etc/ceph/ceph.conf
    rbd_flatten_volume_from_snapshot = false
    rbd_max_clone_depth = 5
    rbd_store_chunk_size = 4
    rados_connect_timeout = 5
    rbd_user = cinder
    rbd_secret_uuid = b89a2a40-c009-47da-ba5b-7b6414a1f759
    # rbd_secret_uuid = xxxxxxxxxxxxxxxxxxxxxxxxxxx
    report_discard_supported = True
    image_upload_use_cinder_backend = True

    给磁盘打标签

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    parted /dev/sdb -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_BOOTSTRAP 1 -1
     
    parted /dev/sdc -s -- mklabel gpt mkpart KOLLA_CEPH_OSD_CACHE_BOOTSTRAP 1 -1

    开始部署

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    kolla-ansible deploy -i /root/multinode

    crushmap

    获取crushmap

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    # docker exec -it ceph_mon bash
    # ceph osd getcrushmap -o crushmap.old

    反编译：此后就可以编辑CRUSHMAP文件了

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    # crushtool -d crushmap.old -o crushmap.new

    修改CRUSHMAP

    根据实际情况编写crushmap

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    # vi crushmap.new
     
    # begin crush map
    tunable choose_local_tries 0
    tunable choose_local_fallback_tries 0
    tunable choose_total_tries 50
    tunable chooseleaf_descend_once 1
    tunable chooseleaf_vary_r 1
    tunable straw_calc_version 1
     
    # devices
    device 0 osd.0
    device 1 osd.1
    device 2 osd.2
    device 3 osd.3
    device 4 osd.4
    device 5 osd.5
     
    # types
    type 0 osd
    type 1 host
    type 2 chassis
    type 3 rack
    type 4 row
    type 5 pdu
    type 6 pod
    type 7 room
    type 8 datacenter
    type 9 region
    type 10 root
     
    # buckets
    host 1.1.1.163 {
    id -2 # do not change unnecessarily
    # weight 0.990
    alg straw
    hash 0 # rjenkins1
    item osd.0 weight 0.990
    }
    host 1.1.1.161 {
    id -3 # do not change unnecessarily
    # weight 0.990
    alg straw
    hash 0 # rjenkins1
    item osd.1 weight 0.990
    }
    host 1.1.1.162 {
    id -4 # do not change unnecessarily
    # weight 0.990
    alg straw
    hash 0 # rjenkins1
    item osd.2 weight 0.990
    }
    root default {
    id -1 # do not change unnecessarily
    # weight 2.970
    alg straw
    hash 0 # rjenkins1
    item 1.1.1.163 weight 0.990
    item 1.1.1.161 weight 0.990
    item 1.1.1.162 weight 0.990
    }
    host 1.1.1.163-ssd {
    id -5 # do not change unnecessarily
    # weight 0.470
    alg straw
    hash 0 # rjenkins1
    item osd.4 weight 0.470
    }
    host 1.1.1.161-ssd {
    id -6 # do not change unnecessarily
    # weight 0.470
    alg straw
    hash 0 # rjenkins1
    item osd.3 weight 0.470
    }
    host 1.1.1.162-ssd {
    id -8 # do not change unnecessarily
    # weight 0.470
    alg straw
    hash 0 # rjenkins1
    item osd.5 weight 0.470
    }
    root ssd {
    id -7 # do not change unnecessarily
    # weight 1.410
    alg straw
    hash 0 # rjenkins1
    item 1.1.1.163-ssd weight 0.470
    item 1.1.1.161-ssd weight 0.470
    item 1.1.1.162-ssd weight 0.470
    }
     
    # rules
    rule replicated_ruleset {
    ruleset 0
    type replicated
    min_size 1
    max_size 10
    step take default
    step chooseleaf firstn 0 type host
    step emit
    }
    rule disks {
    ruleset 1
    type replicated
    min_size 1
    max_size 10
    step take default
    step chooseleaf firstn 0 type host
    step emit
    }
    rule ssd_releset {
    ruleset 2
    type replicated
    min_size 1
    max_size 10
    step take ssd
    step chooseleaf firstn 0 type host
    step emit
    }
     
    # end crush map

    重新编译

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    # crushtool -c crushmap.new -o crushmap.bin

    导入新的CRUSHMAP

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    # ceph osd setcrushmap -i crushmap.bin

    查看

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    # ceph osd tree
    ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
    -7 1.40996 root ssd
    -5 0.46999 host 1.1.1.163-ssd
    4 0.46999 osd.4 up 1.00000 1.00000
    -6 0.46999 host 1.1.1.161-ssd
    3 0.46999 osd.3 up 1.00000 1.00000
    -8 0.46999 host 1.1.1.162-ssd
    5 0.46999 osd.5 up 1.00000 1.00000
    -1 2.96997 root default
    -2 0.98999 host 1.1.1.163
    0 0.98999 osd.0 up 1.00000 1.00000
    -3 0.98999 host 1.1.1.161
    1 0.98999 osd.1 up 1.00000 1.00000
    -4 0.98999 host 1.1.1.162
    2 0.98999 osd.2 up 1.00000 1.00000

    创建pool

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    # ceph osd pool create volumes-cache 64 64

    设置pool的crushmap

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    # ceph osd pool set volumes-cache crush_ruleset 2
    # ceph osd dump |grep -i pool
    pool 1 'images' replicated size 1 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 285 flags hashpspool stripe_width 0
    pool 2 'volumes' replicated size 1 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 281 flags hashpspool stripe_width 0
    pool 3 'backups' replicated size 1 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 165 flags hashpspool stripe_width 0
    pool 4 'vms' replicated size 1 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 44 flags hashpspool stripe_width 0
    pool 5 'gnocchi' replicated size 1 min_size 1 crush_ruleset 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 35 flags hashpspool stripe_width 0
    pool 6 'volumes-cache' replicated size 3 min_size 2 crush_ruleset 2 object_hash rjenkins pg_num 64 pgp_num 64 last_change 62 flags hashpspool stripe_width 0

    创建两个cinder卷类型

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    # source /etc/kolla/admin-openrc.sh
    # cinder type-create SATA
    # cinder type-create SSD
    # cinder type-list
    +--------------------------------------+------+-------------+-----------+
    | ID | Name | Description | Is_Public |
    +--------------------------------------+------+-------------+-----------+
    | 8c1079e5-90a3-4f6d-bdb7-2f25b70bc2c8 | SSD | | True |
    | a605c569-1e88-486d-bd8e-7aba43ce1ef2 | SATA | | True |
    +--------------------------------------+------+-------------+-----------+

    设置卷类型的key键值

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    cinder type-key SSD set volume_backend_name=ssd
    cinder type-key SATA set volume_backend_name=rbd-1
    # cinder extra-specs-list
    +--------------------------------------+------+----------------------------------+
    | ID | Name | extra_specs |
    +--------------------------------------+------+----------------------------------+
    | 8c1079e5-90a3-4f6d-bdb7-2f25b70bc2c8 | SSD | {'volume_backend_name': 'ssd'} |
    | a605c569-1e88-486d-bd8e-7aba43ce1ef2 | SATA | {'volume_backend_name': 'rbd-1'} |
    +--------------------------------------+------+----------------------------------+

    创建云硬盘验证

    测试

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    # cinder create --volume_type SSD --display_name vol-ssd 1
    +--------------------------------+--------------------------------------+
    | Property | Value |
    +--------------------------------+--------------------------------------+
    | attachments | [] |
    | availability_zone | nova |
    | bootable | false |
    | consistencygroup_id | None |
    | created_at | 2017-11-30T02:58:17.000000 |
    | description | None |
    | encrypted | False |
    | id | e2df2b47-13ec-4503-a78b-2ab60cb5a34b |
    | metadata | {} |
    | migration_status | None |
    | multiattach | False |
    | name | vol-ssd |
    | os-vol-host-attr:host | control@ssd#ssd |
    | os-vol-mig-status-attr:migstat | None |
    | os-vol-mig-status-attr:name_id | None |
    | os-vol-tenant-attr:tenant_id | 21c161dda51147fb9ff527aadfe1d81a |
    | replication_status | None |
    | size | 1 |
    | snapshot_id | None |
    | source_volid | None |
    | status | creating |
    | updated_at | 2017-11-30T02:58:18.000000 |
    | user_id | 68601348f1264a4cb69f8f8f162e3f2a |
    | volume_type | SSD |
    +--------------------------------+--------------------------------------+
    # cinder create --volume_type SATA --display_name vol-sata 1
    +--------------------------------+--------------------------------------+
    | Property | Value |
    +--------------------------------+--------------------------------------+
    | attachments | [] |
    | availability_zone | nova |
    | bootable | false |
    | consistencygroup_id | None |
    | created_at | 2017-11-30T02:59:07.000000 |
    | description | None |
    | encrypted | False |
    | id | f3f53733-348d-4ff9-a472-445aed77c111 |
    | metadata | {} |
    | migration_status | None |
    | multiattach | False |
    | name | vol-sata |
    | os-vol-host-attr:host | None |
    | os-vol-mig-status-attr:migstat | None |
    | os-vol-mig-status-attr:name_id | None |
    | os-vol-tenant-attr:tenant_id | 21c161dda51147fb9ff527aadfe1d81a |
    | replication_status | None |
    | size | 1 |
    | snapshot_id | None |
    | source_volid | None |
    | status | creating |
    | updated_at | None |
    | user_id | 68601348f1264a4cb69f8f8f162e3f2a |
    | volume_type | SATA |
    +--------------------------------+--------------------------------------+
     
    # rbd -p volumes-cache ls|grep e2df2b47-13ec-4503-a78b-2ab60cb5a34b
    volume-e2df2b47-13ec-4503-a78b-2ab60cb5a34b
    # rbd -p volumes ls|grep f3f53733-348d-4ff9-a472-445aed77c111
    volume-f3f53733-348d-4ff9-a472-445aed77c111
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  • 原文地址：https://www.cnblogs.com/mylovelulu/p/10901311.html
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