Centos7 system-storage-manager 使用

妖狐艹你老母 2022-01-10 10:23 310阅读 0赞

### system-storage-manager 是红帽RHEL7系统自带的一款存储管理工具 可以简化存储管理 ###

#### 本次实验使用一台Centos7的虚拟机，新添加3块8G的scsi硬盘 通过ssm自动完成lvm的创建 文件系统创建 挂载 ####

[root@localhost ~]# yum -y install system-storage-manager
    
    # 查看本机的存储信息
    [root@localhost ~]# ssm list
    --------------------------------
    Device        Total  Mount point  
    --------------------------------
    /dev/sda   20.00 GB  PARTITIONED  
    /dev/sda1   1.00 GB  /boot        
    /dev/sda2   2.00 GB  SWAP         
    /dev/sda3  10.00 GB  /            
    /dev/sdb    8.00 GB               
    /dev/sdc    8.00 GB               
    /dev/sdd    8.00 GB               
    --------------------------------
    -------------------------------------------------------------------
    Volume     Volume size  FS    FS size       Free  TypeMount point  
    -------------------------------------------------------------------
    /dev/sda1      1.00 GB  ext4  1.00 GB  827.75 MB  part/boot        
    /dev/sda3     10.00 GB  xfs   9.99 GB    8.74 GB  part/            
    -------------------------------------------------------------------
    [root@localhost ~]# ls /media/
    cdrom  lv1  lv2
    
    # 使用 sd{b..d} 创建vg0/lv1 并格式化为 xfs 挂载到 /media/lv1 
    
    [root@localhost ~]# ssm create -s 400M -n lv1 -p vg0 --fstype xfs /dev/sd{b..d} /media/lv1
      Physical volume "/dev/sdb" successfully created.
      Physical volume "/dev/sdc" successfully created.
      Physical volume "/dev/sdd" successfully created.
      Volume group "vg0" successfully created
      Logical volume "lv1" created.
    meta-data=/dev/vg0/lv1           isize=512    agcount=4, agsize=25600 blks
             =                       sectsz=512   attr=2, projid32bit=1
             =                       crc=1        finobt=0, sparse=0
    data     =                       bsize=4096   blocks=102400, imaxpct=25
             =                       sunit=0      swidth=0 blks
    naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
    log      =internal log           bsize=4096   blocks=855, version=2
             =                       sectsz=512   sunit=0 blks, lazy-count=1
    realtime =none                   extsz=4096   blocks=0, rtextents=0
    
    [root@localhost ~]# df -h
    Filesystem           Size  Used Avail Use% Mounted on
    /dev/sda3             10G  1.3G  8.8G  13% /
    /dev/sda1            976M   97M  812M  11% /boot
    /dev/mapper/vg0-lv1  397M   21M  377M   6% /media/lv1
    
    # 扩容 /dev/vg0/lv1 增加60M
    [root@localhost ~]# ssm resize -s +60M vg0/lv1
      Size of logical volume vg0/lv1 changed from 400.00 MiB (100 extents) to 460.00 MiB (115 extents).
      Logical volume vg0/lv1 successfully resized.
    
    [root@localhost ~]# df -h
    Filesystem           Size  Used Avail Use% Mounted on
    /dev/sda3             10G  1.3G  8.8G  13% /
    /dev/sda1            976M   97M  812M  11% /boot
    /dev/mapper/vg0-lv1  457M   21M  437M   5% /media/lv1
    
    # 创建一个vg0/lv1 的逻辑卷大小200M 使用ext4文件系统 挂载到 /media/lv2
    
    [root@localhost ~]# ssm create -s 200M -n lv2 --fstype ext4 -p vg0 /media/lv2
      Logical volume "lv2" created.
    mke2fs 1.42.9 (28-Dec-2013)
    Filesystem label=
    OS type: Linux
    Block size=1024 (log=0)
    Fragment size=1024 (log=0)
    Stride=0 blocks, Stripe width=0 blocks
    51200 inodes, 204800 blocks
    10240 blocks (5.00%) reserved for the super user
    First data block=1
    Maximum filesystem blocks=33816576
    25 block groups
    8192 blocks per group, 8192 fragments per group
    2048 inodes per group
    Superblock backups stored on blocks: 
        8193, 24577, 40961, 57345, 73729
    
    Allocating group tables: done                            
    Writing inode tables: done                            
    Creating journal (4096 blocks): done
    Writing superblocks and filesystem accounting information: done 
    
    [root@localhost ~]# df -h
    Filesystem           Size  Used Avail Use% Mounted on
    /dev/sda3             10G  1.3G  8.8G  13% /
    /dev/sda1            976M   97M  812M  11% /boot
    /dev/mapper/vg0-lv1  457M   21M  437M   5% /media/lv1
    /dev/mapper/vg0-lv2  190M  1.6M  175M   1% /media/lv2
    
    # vg0/lv2 缩小 40M 如果没有卸载会提示卸载处理完后会自动挂载
    [root@localhost ~]# ssm resize -s-40M vg0/lv2
    Do you want to unmount "/media/lv2" ? [Y|n] y
    fsck from util-linux 2.23.2
    /dev/mapper/vg0-lv2: 11/51200 files (0.0% non-contiguous), 12115/204800 blocks
    resize2fs 1.42.9 (28-Dec-2013)
    Resizing the filesystem on /dev/mapper/vg0-lv2 to 163840 (1k) blocks.
    The filesystem on /dev/mapper/vg0-lv2 is now 163840 blocks long.
    
      Size of logical volume vg0/lv2 changed from 200.00 MiB (50 extents) to 160.00 MiB (40 extents).
      Logical volume vg0/lv2 successfully resized.
    [root@localhost ~]# lvs
      LV   VG  Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
      lv1  vg0 -wi-ao---- 460.00m                                                  
      lv2  vg0 -wi-ao---- 160.00m          
    
    [root@localhost ~]# df -hT
    Filesystem          Type      Size  Used Avail Use% Mounted on
    /dev/sda3           xfs        10G  1.3G  8.8G  13% /
    /dev/sda1           ext4      976M   97M  812M  11% /boot
    /dev/mapper/vg0-lv1 xfs       457M   21M  437M   5% /media/lv1
    /dev/mapper/vg0-lv2 ext4      151M  1.6M  139M   2% /media/lv2

#### 删除创建的 lvm vg pv ####

[root@localhost ~]# ssm remove -h
    usage: ssm remove [-h] [-a] [items [items ...]]
    
    positional arguments:
      items       Items to remove. Item could be device, pool, or volume.
    
    optional arguments:
      -h, --help  show this help message and exit
      -a, --all   Remove all pools in the system.
    [root@localhost ~]# ssm remove vg0/lv1 vg0/lv2
    Do you really want to remove active logical volume vg0/lv1? [y/n]: y
      Logical volume "lv1" successfully removed
    Do you really want to remove active logical volume vg0/lv2? [y/n]: y
      Logical volume "lv2" successfully removed
    [root@localhost ~]# ssm remove vg0
      Volume group "vg0" successfully removed
    [root@localhost ~]# ssm remove /dev/sd{b..d}
    SSM Info: Unable to remove '/dev/sdb'
    SSM Info: Unable to remove '/dev/sdc'
    SSM Info: Unable to remove '/dev/sdd'
    SSM Error (2001): Nothing was removed!
    [root@localhost ~]# pvremove /dev/sd{b..d}
      Labels on physical volume "/dev/sdb" successfully wiped.
      Labels on physical volume "/dev/sdc" successfully wiped.
      Labels on physical volume "/dev/sdd" successfully wiped.

转载于:https://blog.51cto.com/1012682/2369205