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  • GlusterFS常用设置命令

    可信存储池(Trusted Storage Pool)
    创建存储池
    例如要创建一个包含3个服务器的存储池,则需要从第一个服务器server1中把另外两个服务器加入存储池中:
    # gluster peer probe server2
    Probe successful

    # gluster pool peer server3
    Probe successful

    查看存储池状态:
    # gluster peer status
    Number of Peers: 2

    Hostname: server2.quenywell.com
    Uuid: 86bd7b96-1320-4cd5-b3e1-e537d06dd5f7
    State: Peer in Cluster (Connected)

    Hostname: server3.quenywell.com
    Uuid: c191b17b-ab9d-4b15-a70d-dcc92be067c9
    State: Peer in Cluster (Connected)

    从存储池移除服务器
    假设要把server3从存储池里删除,可以使用以下命令:
    # gluster peer detach server3
    Detach successful
    GlusterFS逻辑卷(Volume)
    逻辑卷由一个或多个存储块(Brick)组成,每个存储块对应存储池中的一个目录。
    GlusterFS的基本类型有三个,分别是分散存储(Distributed,将不同的文件放在不同的存储块)、镜像存储(Replicated,同一个文件存放在两个以上的存储块,相当于RAID1) 和分片存储(Striped,将一个文件分划分为多个固定长度的数据,分散存放在所有存储块,相当于RAID0)。另外Distributed也可以跟Replicated和Striped组合形成新的类型。
    建立GlusterFS逻辑卷的基本语法:
    # gluster volume create [stripe ] [replica ] [device vg] [transport ] ...
    创建Distributed逻辑卷
    创建一个名字为dis-volume、包含两个存储块、使用TCP协议的Distributed逻辑卷:
    # gluster volume create dis-volume server1:/data server2:/data
    Creation of dis-volume has been successful
    Please start the volume to access data.
    查看逻辑卷状态:
    # gluster volume info

    Volume Name: dis-volume
    Type: Distribute
    Volume ID: 5429d6c1-44e5-43ad-a495-0a1f5b6d774b
    Status: Started
    Number of Bricks: 1 x 2 = 2
    Transport-type: tcp
    Bricks:
    Brick1: server1.quenywell.com:/data
    Brick2: server2.quenywell.com:/data

    创建Replicated逻辑卷
    创建一个名字为rep-volume,包含两个存储块,使用TCP协议的Replicated逻辑卷:
    # gluster volume create rep-volume replica 2 transport tcp server1:/data server2:/data
    Creation of rep-volume has been successful
    Please start the volume to access data.
    创建Striped逻辑卷
    创建一个名字为strip-volume,包含两个存储块,使用TCP协议的Striped逻辑卷:
    # gluster volume create strip-volume stripe 2 transport tcp server1:/data server2:/data
    Creation of strip-volume has been successful
    Please start the volume to access data.
    GlusterFS逻辑卷权限控制(可选,非必须)
    可以给Gluster逻辑卷设置访问权限以增加安全性。可使用auth.allow和auth.reject允许或禁止特定IP地址访问逻辑卷,支持*通配符。例如:192.168.0.*、192.168.*、192.*都是符合规则的。
    例如允许192.168.0.*网段的主机访问rep-volume:
    # gluster volume set rep-volume auth.allow 192.168.0.*
    启动GlusterFS逻辑卷
    注意:逻辑卷在使用前必须先启动!
    基本语法:
    # gluster volume start
    例如要启动rep-volume:
    # gluster start rep-volume
    Starting rep-volume has been successful
    查看GlusterFS逻辑卷状态
    基本语法:
    # gluster volume info
    例如要查看rep-volume状态:
    # gluster volume info rep-volume

    Volume Name: rep-volume
    Type: Replicate
    Volume ID: 5429d6c1-44e5-43ad-a495-0a1f5b6d774b
    Status: Started
    Number of Bricks: 1 x 2 = 2
    Transport-type: tcp
    Bricks:
    Brick1: server1.quenywell.com:/data
    Brick2: server2.quenywell.com:/data

    停止GlusterFS逻辑卷
    # gluster volume stop rep-volume
    Stopping volume will make its data inaccessible. Do you want to continue? (y/n)
    输入y然后按回车键(Enter),将会出现如下信息:
    Stopping volume rep-volume has been successful
    删除GlusterFS逻辑卷
    # gluster volume delete rep-volume
    Deleting volume will erase all information about the volume. Do you want to continue? (y/n)
    输入y然后按回车键(Enter),将会出现如下信息:
    Deleting volume test-volume has been successful
    存储块Brick操作命令
    增加Brick
    在rep-volume卷中增加一个存储块server3:/data:
    # gluster volume add-brick rep-volume server3:/data
    Add Brick successful
    重要:每次操作存储块之后都必须执行一次rebalance命令!
    # gluster volume rebalance rep-volume start
    Starting rebalancing on volume rep-volume has been successful
    删除Brick
    在rep-volume卷中删除存储块server3:/data:
    # gluster volume remove-brick rep-volume server3:/data
    Removing brick(s) can result in data loss. Do you want to Continue? (y/n)
    输入y然后按回车键(Enter),将会出现如下信息:
    Remove Brick successful
    执行rebalance命令:
    # gluster volume rebalance rep-volume start
    Starting rebalancing on volume rep-volume has been successful

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  • 原文地址:https://www.cnblogs.com/Qing-840/p/9264059.html
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