新磁盘sdb进行初始化：fdisk /dev/sdb

    1. [root@localhost ~]# lsblk
    2. NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    3. sda           8:0    0   50G  0 disk
    4. ├─sda1        8:1    0  476M  0 part /boot
    5. └─sda2        8:2    0   47G  0 part
    6.   ├─ao-root 253:0    0   35G  0 lvm  /
    7.   ├─ao-swap 253:1    0    2G  0 lvm  [SWAP]
    8.   └─ao-home 253:2    0   10G  0 lvm  /home
    9. sdb           8:16   0   10G  0 disk
    10. sr0          11:0    1 1024M  0 rom
    11. [root@localhost ~]#
    12. [root@localhost ~]# fdisk /dev/sdb
    13. 欢迎使用 fdisk (util-linux 2.23.2)。
    15. 更改将停留在内存中，直到您决定将更改写入磁盘。
    16. 使用写入命令前请三思。
    18. Device does not contain a recognized partition table
    19. 使用磁盘标识符 0x26dda025 创建新的 DOS 磁盘标签。
    21. 命令(输入 m 获取帮助)：n
    22. Partition type:
    23.    p   primary (0 primary, 0 extended, 4 free)
    24.    e   extended
    25. Select (default p):
    26. Using default response p
    27. 分区号 (1-4，默认 1)：
    28. 起始 扇区 (2048-20971519，默认为 2048)：
    29. 将使用默认值 2048
    30. Last 扇区, +扇区 or +size{K,M,G} (2048-20971519，默认为 20971519)：
    31. 将使用默认值 20971519
    32. 分区 1 已设置为 Linux 类型，大小设为 10 GiB
    34. 命令(输入 m 获取帮助)：w
    35. The partition table has been altered!
    37. Calling ioctl() to re-read partition table.
    38. 正在同步磁盘。
    39. [root@localhost ~]#
    40. [root@localhost ~]# lsblk
    41. NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    42. sda           8:0    0   50G  0 disk
    43. ├─sda1        8:1    0  476M  0 part /boot
    44. └─sda2        8:2    0   47G  0 part
    45.   ├─ao-root 253:0    0   35G  0 lvm  /
    46.   ├─ao-swap 253:1    0    2G  0 lvm  [SWAP]
    47.   └─ao-home 253:2    0   10G  0 lvm  /home
    48. sdb           8:16   0   10G  0 disk
    49. └─sdb1        8:17   0   10G  0 part
    50. sr0          11:0    1 1024M  0 rom
    51. [root@localhost ~]#

    将数据文件目录data与磁盘sdb的分区进行关联

    2. [root@localhost ~]# pvcreate /dev/sdb1
    3.   Physical volume "/dev/sdb1" successfully created.
    4. [root@localhost ~]#
    5. [root@localhost ~]# lsblk
    6. NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    7. sda           8:0    0   50G  0 disk
    8. ├─sda1        8:1    0  476M  0 part /boot
    9. └─sda2        8:2    0   47G  0 part
    10.   ├─ao-root 253:0    0   35G  0 lvm  /
    11.   ├─ao-swap 253:1    0    2G  0 lvm  [SWAP]
    12.   └─ao-home 253:2    0   10G  0 lvm  /home
    13. sdb           8:16   0   10G  0 disk
    14. └─sdb1        8:17   0   10G  0 part
    15. sr0          11:0    1 1024M  0 rom
    16. [root@localhost ~]#
    17. [root@localhost ~]# vgcreate datavg /dev/sdb1
    18.   Volume group "datavg" successfully created
    19. [root@localhost ~]#
    20. [root@localhost ~]# lsblk
    21. NAME              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    22. sda                 8:0    0   50G  0 disk
    23. ├─sda1              8:1    0  476M  0 part /boot
    24. └─sda2              8:2    0   47G  0 part
    25.   ├─ao-root       253:0    0   35G  0 lvm  /
    26.   ├─ao-swap       253:1    0    2G  0 lvm  [SWAP]
    27.   └─ao-home       253:2    0   10G  0 lvm  /home
    28. sdb                 8:16   0   10G  0 disk
    29. └─sdb1              8:17   0   10G  0 part
    30. sr0                11:0    1 1024M  0 rom
    31. [root@localhost ~]#
    32. [root@localhost ~]#
    33. [root@localhost ~]# lvcreate -n datalv -l 100%FREE datavg
    34.   Logical volume "datalv" created.
    35. [root@localhost ~]#
    36. [root@localhost ~]# lsblk
    37. NAME              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    38. sda                 8:0    0   50G  0 disk
    39. ├─sda1              8:1    0  476M  0 part /boot
    40. └─sda2              8:2    0   47G  0 part
    41.   ├─ao-root       253:0    0   35G  0 lvm  /
    42.   ├─ao-swap       253:1    0    2G  0 lvm  [SWAP]
    43.   └─ao-home       253:2    0   10G  0 lvm  /home
    44. sdb                 8:16   0   10G  0 disk
    45. └─sdb1              8:17   0   10G  0 part
    46.   └─datavg-datalv 253:3    0   10G  0 lvm
    47. sr0                11:0    1 1024M  0 rom
    48. [root@localhost ~]#
    1. [root@localhost ~]#
    2. [root@localhost ~]# mkfs.xfs /dev/datavg/datalv
    3. meta-data=/dev/datavg/datalv     isize=512    agcount=4, agsize=655104 blks
    4.          =                       sectsz=512   attr=2, projid32bit=1
    5.          =                       crc=1        finobt=1, sparse=1, rmapbt=0
    6.          =                       reflink=0
    7. data     =                       bsize=4096   blocks=2620416, imaxpct=25
    8.          =                       sunit=0      swidth=0 blks
    9. naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
    10. log      =internal log           bsize=4096   blocks=2560, version=2
    11.          =                       sectsz=512   sunit=0 blks, lazy-count=1
    12. realtime =none                   extsz=4096   blocks=0, rtextents=0
    13. [root@localhost ~]#
    14. [root@localhost ~]# blkid
    15. /dev/sda1: UUID="58910633-0fc8-4b9b-b01e-5ec025a3c98b" TYPE="xfs"
    16. /dev/sda2: UUID="t0diWM-kKwL-tgot-xBWN-WzO3-HgaX-N1YaXD" TYPE="LVM2_member"
    17. /dev/sdb1: UUID="8x0RlH-UDVQ-6QCE-CgW0-hted-6MLq-CadnZx" TYPE="LVM2_member"
    18. /dev/mapper/ao-root: UUID="8a267a24-6256-4aba-b67a-43ce9e3bb263" TYPE="xfs"
    19. /dev/mapper/ao-swap: UUID="86ea5b96-e65c-480d-b839-f48c0d7d3e64" TYPE="swap"
    20. /dev/mapper/ao-home: UUID="befb749b-54a9-4e3a-9322-00aa48a859f6" TYPE="xfs"
    21. /dev/mapper/datavg-datalv: UUID="ea7cbfa9-c565-4c77-8d8a-ea97addc3b0c" TYPE="xfs         "
    22. [root@localhost ~]# vi /etc/fstab
    23. [root@localhost ~]#
    1. #
    2. # /etc/fstab
    3. # Created by anaconda on Thu Mar 10 11:07:24 2022
    4. #
    5. # Accessible filesystems, by reference, are maintained under '/dev/disk'
    6. # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
    7. #
    8. /dev/mapper/ao-root     /                       xfs     defaults        0 0
    9. UUID=58910633-0fc8-4b9b-b01e-5ec025a3c98b /boot                   xfs     defaults        0 0
    10. /dev/mapper/ao-home     /home                   xfs     defaults        0 0
    11. /dev/mapper/ao-swap     swap                    swap    defaults        0 0
    12. UUID=ea7cbfa9-c565-4c77-8d8a-ea97addc3b0c  /dbdata/data xfs     defaults        0 0
    2. [root@localhost ~]# mkdir -p /dbdata/data
    3. [root@localhost ~]#
    4. [root@localhost ~]# mkdir -p /dbdata/backup
    5. [root@localhost ~]#
    6. [root@localhost ~]# chown kingbase:kingbase /dbdata/data
    7. [root@localhost ~]#
    8. [root@localhost ~]# chmod 700 /dbdata/data
    9. [root@localhost ~]#
    10. [root@localhost ~]#
    11. [root@localhost ~]# mount -a
    12. [root@localhost ~]#
    13. [root@localhost ~]# lsblk
    14. NAME              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    15. sda                 8:0    0   50G  0 disk
    16. ├─sda1              8:1    0  476M  0 part /boot
    17. └─sda2              8:2    0   47G  0 part
    18.   ├─ao-root       253:0    0   35G  0 lvm  /
    19.   ├─ao-swap       253:1    0    2G  0 lvm  [SWAP]
    20.   └─ao-home       253:2    0   10G  0 lvm  /home
    21. sdb                 8:16   0   10G  0 disk
    22. └─sdb1              8:17   0   10G  0 part
    23.   └─datavg-datalv 253:3    0   10G  0 lvm  /dbdata/data
    24. sr0                11:0    1 1024M  0 rom
    25. [root@localhost ~]#
    26. [root@localhost ~]# df -hT
    27. 文件系统                  类型      容量  已用  可用 已用% 挂载点
    28. devtmpfs                  devtmpfs  973M     0  973M    0% /dev
    29. tmpfs                     tmpfs     991M  8.0K  991M    1% /dev/shm
    30. tmpfs                     tmpfs     991M   11M  980M    2% /run
    31. tmpfs                     tmpfs     991M     0  991M    0% /sys/fs/cgroup
    32. /dev/mapper/ao-root       xfs        35G  8.3G   27G   24% /
    33. /dev/sda1                 xfs       473M  167M  306M   36% /boot
    34. /dev/mapper/ao-home       xfs        10G  1.7G  8.4G   17% /home
    35. tmpfs                     tmpfs     199M     0  199M    0% /run/user/1001
    36. tmpfs                     tmpfs     199M   12K  199M    1% /run/user/42
    37. tmpfs                     tmpfs     199M     0  199M    0% /run/user/0
    38. /dev/mapper/datavg-datalv xfs        10G   33M   10G    1% /dbdata/data
    39. [root@localhost ~]#
    40. [root@localhost ~]# chown kingbase:kingbase /dbdata/data
    41. [root@localhost ~]#
    42. [root@localhost ~]# chmod 700 /dbdata/data
    43. [root@localhost ~]#

    解除挂载

    1. umount: /home/kingbase/kinstall：目标忙。
    2.         (有些情况下通过 lsof(8) 或 fuser(1) 可以
    3.          找到有关使用该设备的进程的有用信息)
    5. fuser -mv /home/kingbase/kinstall