08.存储Cinder→5.场景学习→01.LVM Volume

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描述

详细

1. 查看配置文件
1. Cinder 支持多种 volume provider，LVM 是默认的 volume provider。Devstack 安装之后，/etc/cinder/cinder 已经配置好了 LVM
2. 配置定义了名为“lvmdriver-1”的 volume provider，也称作 back-end。其 driver 是 LVM，LVM 的 volume group 名为“stack-volumes-lvmdriver-1”。可以查看：

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   root@controller:~# vgdisplay --- Volume group --- VG Name stack-volumes-default System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 1 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 24.00 GiB PE Size 4.00 MiB Total PE 6143 Alloc PE / Size 0 / 0 Free PE / Size 6143 / 24.00 GiB VG UUID Kn0tXW-wiOv-SE1F-zGQ2-iqIK-wsl6-UHG6ux --- Volume group --- VG Name stack-volumes-lvmdriver-1 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 24.00 GiB PE Size 4.00 MiB Total PE 6143 Alloc PE / Size 5849 / 22.85 GiB Free PE / Size 294 / 1.15 GiB VG UUID VnFxRc-Vi1T-hyTw-z6Xt-sfyP-Se12-klZOj8

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root@cinder:~# grep -Ev '^#|^$' /etc/cinder/cinder.conf [DEFAULT] ... default_volume_type = lvmdriver-1 enabled_backends = lvmdriver-1 ... [lvmdriver-1] ... volume_group = stack-volumes-lvmdriver-1 volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver volume_backend_name = lvmdriver-1

通过不同的driver支持不同的back-end

Web GUI查看Volume Type：

查看lvmdrive-1的Extra Specs