Centos 6.5下配置tgt后端存储为ceph

ゝ一世哀愁。 2022-08-14 00:44 245阅读 0赞

# 操作环境 #

Centos 6.5

ceph 0.87

tgt

# 操作步骤 #

安装tgt

#wget http://ceph.com/packages/ceph-extras/rpm/centos6/x86_64/scsi-target-utils-1.0.38-48.bf6981.ceph.el6.x86_64.rpm
    #rpm -ivh scsi-target-utils-1.0.38-48.bf6981.ceph.el6.x86_64.rpm

查看当前tgt对于rbd driver是否支持

[root@ceph-osd-3 ~]# tgtadm --lld iscsi --mode system --op show
    System:
        State: ready
        debug: off
    LLDs:
        iser: error
        iscsi: ready
    Backing stores:
        rbd (bsoflags sync:direct)
        rdwr (bsoflags sync:direct)
        ssc
        null
        bsg
        sg
        sheepdog
    Device types:
        passthrough
        tape
        changer
        controller
        osd
        cd/dvd
        disk
    iSNS:
        iSNS=Off
        iSNSServerIP=
        iSNSServerPort=3205
        iSNSAccessControl=Off

在Backing stores栏中可以看见rbd，说明该tgt可对rbd支持

创建tgt所需的pool以及rbd

[root@ceph-osd-1 ~]ceph osd pool create iscsi 256
    [root@ceph-osd-1 ~]rbd create tgt --size 10240 --pool iscsi

查看rbd

[root@ceph-osd-1 ~]# rbd ls --pool iscsi
    tgt

添加以下内容至gt配置文件中

include /etc/tgt/conf.d/*.conf
    <target iqn.2014-11.rbdstore.com:iscsi>
        driver iscsi
        bs-type rbd
        backing-store iscsi/tgt  
    </target>

重启tgtd

[root@ceph-osd-3 ~]# /etc/init.d/tgtd restart
    Stopping target framework daemon
    Starting target framework daemon

在iscsi initiator端连接该iscsi target

[root@ceph-osd-1 ~]# iscsiadm -m discovery -t sendtargets -p 10.10.200.165
    Starting iscsid:                                           [  OK  ]
    10.10.200.165:3260,1 iqn.2014-11.rbdstore.com:iscsi
    [root@ceph-osd-1 ~]# iscsiadm -m node -T iqn.2014-11.rbdstore.com:iscsi -l
    Logging in to [iface: default, target: iqn.2014-11.rbdstore.com:iscsi, portal: 10.10.200.165,3260] (multiple)
    Login to [iface: default, target: iqn.2014-11.rbdstore.com:iscsi, portal: 10.10.200.165,3260] successful.
    [root@ceph-osd-1 ~]# fdisk -l
    
    Disk /dev/sdb: 5788.2 GB, 5788206759936 bytes
    255 heads, 63 sectors/track, 703709 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    
    Disk /dev/sda: 209.7 GB, 209715068928 bytes
    255 heads, 63 sectors/track, 25496 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0009a9dd
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *           1         131     1048576   83  Linux
    Partition 1 does not end on cylinder boundary.
    /dev/sda2             131        1176     8392704   82  Linux swap / Solaris
    /dev/sda3            1176       25497   195356672   8e  Linux LVM
    
    Disk /dev/mapper/vg_swift-LogVol00: 200.0 GB, 200043134976 bytes
    255 heads, 63 sectors/track, 24320 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    
    Disk /dev/mapper/docker-253:0-3539142-pool: 107.4 GB, 107374182400 bytes
    255 heads, 63 sectors/track, 13054 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 65536 bytes
    Disk identifier: 0x00000000
    
    
    Disk /dev/sdc: 10.7 GB, 10737418240 bytes
    64 heads, 32 sectors/track, 10240 cylinders
    Units = cylinders of 2048 * 512 = 1048576 bytes
    Sector size (logical/physical): 512 bytes / 4194304 bytes
    I/O size (minimum/optimal): 4194304 bytes / 4194304 bytes
    Disk identifier: 0x00000000

可以发现sdc为映射过来的新硬盘