当前位置： 首页 > wzjs >正文

基于html5的电商网站开发网站建设的简要任务执行书

wzjs 2025/9/6 15:19:32
基于html5的电商网站开发,网站建设的简要任务执行书,半夜看的直播app推荐知乎,余姚网站建设设计服务Linux系统常见磁盘扩容操作 目录说明 一、准备工作：获取目标磁盘信息 （1）确认分区表格式和文件系统 二、扩容已有MBR分区 （1）分区后扩容 ext为例 xfs为例 三、扩容已有GPT分区 （1）分区…

Linux系统常见磁盘扩容操作

目录说明

一、准备工作：获取目标磁盘信息

（1）确认分区表格式和文件系统

二、扩容已有MBR分区

（1）分区后扩容

    • ext为例

    • xfs为例

三、扩容已有GPT分区

（1）分区后扩容

    • ext为例

    • xfs为例

四、未分区扩容

    • ext为例

    • xfs为例

五、LVM

（1）通过LVM创建逻辑卷

    • ext为例

    • xfs为例

（2）扩容逻辑卷

    方式一：扩容磁盘以扩容逻辑卷容量

      • ext为例

      • xfs为例

    方式二：新增磁盘以扩容逻辑卷容量

      • ext为例

      • xfs为例

一、准备工作：获取目标磁盘信息

（1）确认分区表格式和文件系统

运行以下命令确认数据盘的分区表格式

[root@itgank ~]#fdisk -lu /dev/sdaDisk /dev/vdb: 42.9 GB, 42949672960 bytes, 83886080 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x9277b47b Device Boot Start End Blocks Id System/dev/vdb1 2048 41943039 20970496 83 Linux

注意:Disk label type的值为dos则分区是MBR，若该结果的值为gpt则分区是GPT

运行以下命令确认已有分区的文件系统类型

[root@itgank ~]# blkid /dev/vdb1/dev/vdb1: UUID="e97bf1e2-fc84-4c11-9652-73********24" TYPE="ext4"

注意:TYPE的值为ext4则文件系统类型为ext4，若该结果的值为xfs则文件系统类型为xfs

ext*文件系统使用resize2fs命令扩容文件系统 xfs文件系统使用 xfs_growfs命令扩容文件系统

说明

为了防止数据丢失，不建议扩容已挂载的分区和文件系统。请先取消挂载（umount）分区，完成扩容并正常使用后，重新挂载（mount）。针对不同的Linux内核版本，推荐以下操作方式：

  • 实例内核版本小于3.6：先取消挂载该分区，再修改分区表，最后扩容文件系统。

  • 实例内核版本大于等于3.6：先修改对应分区表，再通知内核更新分区表，最后扩容文件系统。

二、扩容已有MBR分区

fdisk命令主要用于 MBR分区表的操作

  • MBR： MBR 分区表支持最多四个主分区，其中一个可以是扩展分区，该扩展分区可以包含多个逻辑分区。由于 MBR 使用32位的扇区偏移值来寻址，因此 MBR 分区表的最大容量为2 TB

（1）分区后扩容

/dev/sdb有10G，只有一个分区/dev/sdb1。将其扩大至20G，将新增的10G划分至已有的/dev/sdb1内

ext为例

[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               ext4      9.8G   37M  9.2G   1% /data

执行以下命令，安装growpart扩容工具

yum install cloud-utils-growpart -y [root@itgank ~]# echo 1 > /sys/block/sdb/device/rescan #如果数据盘扩容后容量大小未变执行此命令让内核扫描并重新识别连接到sdb磁盘的所有磁盘驱动器[root@itgank ~]# growpart /dev/sdb 1CHANGED: partition=1 start=2048 old: size=20969472 end=20971520 new: size=41940959 end=41943007[root@itgank ~]# resize2fs /dev/sdb1 resize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/sdb1 is mounted on /data; on-line resizing requiredold_desc_blocks = 2, new_desc_blocks = 3The filesystem on /dev/sdb1 is now 5242619 blocks long. [root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               ext4       20G   44M   19G   1% /data

如果不使用growpart命令 手动扩容如下​​​​​​​

[root@itgank ~]# fdisk /dev/sdbWelcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them.Be careful before using the write command.  Command (m for help): p  #查看分区 Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x2e714d05    Device Boot      Start         End      Blocks   Id  System/dev/sdb1            2048    20971519    10484736   83  Linux Command (m for help): d   #删除当前1分区 切记不要w保存退出 会造成数据丢失Selected partition 1Partition 1 is deleted Command (m for help): n #选择分区类型Partition type:   p   primary (0 primary, 0 extended, 4 free)   e   extendedSelect (default p): p  #选择主分区Partition number (1-4, default 1):    First sector (2048-41943039, default 2048):Using default value 2048Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): Using default value 41943039Partition 1 of type Linux and of size 20 GiB is set Command (m for help): p Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x2e714d05    Device Boot      Start         End      Blocks   Id  System/dev/sdb1            2048    41943039    20970496   83  Linux Command (m for help): w  #以上操作保存退出 如果中途命令输入错误 ctrl+c回退所有命令  重头再开始The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy.The kernel still uses the old table. The new table will be used atthe next reboot or after you run partprobe(8) or kpartx(8)Syncing disks.[root@itgank ~]# partprobe[root@itgank ~]# resize2fs /dev/sdb1resize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/sdb1 is mounted on /data; on-line resizing requiredold_desc_blocks = 2, new_desc_blocks = 3The filesystem on /dev/sdb1 is now 5242624 blocks long. [root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               ext4       20G   44M   19G   1% /data

xfs为例​​​​​​

[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               xfs       9.8G   37M  9.2G   1% /data

执行以下命令，安装growpart扩容工具​​​​​​​

yum install cloud-utils-growpart -y[root@itgank ~]# echo 1 > /sys/block/sdb/device/rescan #如果数据盘扩容后容量大小未变执行此命令让内核扫描并重新识别连接到sdb磁盘的所有磁盘驱动器[root@itgank ~]# growpart /dev/sdb 1CHANGED: partition=1 start=2048 old: size=20969472 end=20971520 new: size=41940959 end=41943007[root@itgank ~]# xfs_growfs /dev/sdb1 [root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               xfs        20G   44M   19G   1% /data

如果不使用growpart命令 手动扩容如下​​​​​​​

[root@itgank ~]# fdisk /dev/sdbWelcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them.Be careful before using the write command.  Command (m for help): p #打印分区表 Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x2e714d05    Device Boot      Start         End      Blocks   Id  System/dev/sdb1            2048    20971519    10484736   83  Linux Command (m for help): d  #删除分区   Selected partition 1Partition 1 is deleted Command (m for help): n #选择主分区Partition type:   p   primary (0 primary, 0 extended, 4 free)   e   extendedSelect (default p): p  #默认选择primaryPartition number (1-4, default 1):    #默认选择1First sector (2048-41943039, default 2048):Using default value 2048Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): Using default value 41943039Partition 1 of type Linux and of size 20 GiB is set Command (m for help): p Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x2e714d05    Device Boot      Start         End      Blocks   Id  System/dev/sdb1            2048    41943039    20970496   83  Linux Command (m for help): w  #保存修改并退出The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy.The kernel still uses the old table. The new table will be used atthe next reboot or after you run partprobe(8) or kpartx(8)Syncing disks.[root@itgank ~]# partprobe[root@itgank ~]# xfs_growfs /dev/sdb1meta-data=/dev/sdf               isize=512    agcount=4, agsize=655360 blks         =                       sectsz=512   attr=2, projid32bit=1         =                       crc=1        finobt=0 spinodes=0data     =                       bsize=4096   blocks=2621440, imaxpct=25         =                       sunit=0      swidth=0 blksnaming   =version 2              bsize=4096   ascii-ci=0 ftype=1log      =internal               bsize=4096   blocks=2560, version=2         =                       sectsz=512   sunit=0 blks, lazy-count=1realtime =none                   extsz=4096   blocks=0, rtextents=0[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb1               xfs       20G   44M   19G   1% /data

三、扩容已有GPT分区

parted命令主要用于 GPT分区表的操作

  • GPT： GPT 分区表支持更大的硬盘容量。它使用64位的逻辑块地址，因此可以支持超过2 TB的硬盘容量

（1）分区后扩容

ext为例

/dev/sdf1有10G。将数据盘容量扩大至20G，将新增的10G划分至已有的/dev/sdf1内​​​​​​​

[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   20M  1.9G   2% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata ext4      689G   69M  658G   1% /data/dev/sdf1                 ext4      9.8G   37M  9.2G   1% /aaa[root@itgank ~]# parted /dev/sdfGNU Parted 3.1Using /dev/sdfWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) printError: The backup GPT table is not at the end of the disk, as it should be.  This might mean that another operating system believes thedisk is smaller.  Fix, by moving the backup to the end (and removing the old backup)?Fix/Ignore/Cancel? Fix   #若界面提示Fix/Ignore/Cancel?和Fix/Ignore?，均输入Fix即可Warning: Not all of the space available to /dev/sdf appears to be used, you can fix the GPT to use all of the space (an extra 20971520blocks) or continue with the current setting?Fix/Ignore? FixModel: VMware Virtual disk (scsi)Disk /dev/sdf: 21.5GBSector size (logical/physical): 512B/512BPartition Table: gptDisk Flags: Number  Start   End     Size    File system  Name     Flags 1      1049kB  10.7GB  10.7GB  ext4         primary (parted) rm 1  #删除1分区(parted) mkpart primary 1049kB 100%   #原分区的起始扇区为1049kB，且要将扩容后的总容量全部分配给该分区(parted) print Model: VMware Virtual disk (scsi)Disk /dev/sdf: 21.5GBSector size (logical/physical): 512B/512BPartition Table: gptDisk Flags: Number  Start   End     Size    File system  Name     Flags 1      1049kB  21.5GB  21.5GB  ext4         primary(parted) quit #退出Information: You may need to update /etc/fstab. [root@itgank ~]# resize2fs /dev/sdf1resize2fs 1.42.9 (28-Dec-2013)Please run 'e2fsck -f /dev/sdf1' first. [root@itgank ~]# e2fsck -f /dev/sdf1  #检测磁盘e2fsck 1.42.9 (28-Dec-2013)Pass 1: Checking inodes, blocks, and sizesPass 2: Checking directory structurePass 3: Checking directory connectivityPass 4: Checking reference countsPass 5: Checking group summary information/dev/sdf1: 11/655360 files (0.0% non-contiguous), 83137/2620928 blocks[root@itgank ~]# resize2fs /dev/sdf1resize2fs 1.42.9 (28-Dec-2013)Resizing the filesystem on /dev/sdf1 to 5242368 (4k) blocks.The filesystem on /dev/sdf1 is now 5242368 blocks long. [root@itgank ~]# mount /dev/sdf1  /aaa[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   20M  1.9G   2% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata ext4      689G   69M  658G   1% /data/dev/sdf1                 ext4       20G   44M   19G   1% /aaa

xfs为例​​​​​​​

[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   20M  1.9G   2% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata ext4      689G   69M  658G   1% /data/dev/sdf1                 xfs        10G   33M   10G   1% /aaa[root@itgank ~]# parted /dev/sdfGNU Parted 3.1Using /dev/sdfWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) printError: The backup GPT table is not at the end of the disk, as it should be.  This might mean that another operating system believes thedisk is smaller.  Fix, by moving the backup to the end (and removing the old backup)?Fix/Ignore/Cancel? fixWarning: Not all of the space available to /dev/sdf appears to be used, you can fix the GPT to use all of the space (an extra 20971520blocks) or continue with the current setting?Fix/Ignore? fixModel: VMware Virtual disk (scsi)Disk /dev/sdf: 21.5GBSector size (logical/physical): 512B/512BPartition Table: gptDisk Flags: Number  Start   End     Size    File system  Name     Flags 1      1049kB  10.7GB  10.7GB  xfs          primary (parted) rm 1(parted) mkpart primary 1049kB 100%(parted) printModel: VMware Virtual disk (scsi)Disk /dev/sdf: 21.5GBSector size (logical/physical): 512B/512BPartition Table: gptDisk Flags: Number  Start   End     Size    File system  Name     Flags 1      1049kB  21.5GB  21.5GB  xfs          primary (parted) quitInformation: You may need to update /etc/fstab.[root@itgank ~]# mount /dev/sdf1 /aaa[root@itgank ~]# xfs_growfs /aaameta-data=/dev/sdf1              isize=512    agcount=4, agsize=655232 blks         =                       sectsz=512   attr=2, projid32bit=1         =                       crc=1        finobt=0 spinodes=0data     =                       bsize=4096   blocks=2620928, imaxpct=25         =                       sunit=0      swidth=0 blksnaming   =version 2              bsize=4096   ascii-ci=0 ftype=1log      =internal               bsize=4096   blocks=2560, version=2         =                       sectsz=512   sunit=0 blks, lazy-count=1realtime =none                   extsz=4096   blocks=0, rtextents=0data blocks changed from 2620928 to 5242368[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   20M  1.9G   2% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata ext4      689G   69M  658G   1% /data/dev/sdf1                 xfs        20G   33M   20G   1% /aaa[root@itgank ~]#
四、未分区扩容

/dev/sdb有10G，未分区直接挂载。将数据盘容量扩大至20G，将新增的10G划分至已有的/dev/sdb内

ext为例​​​​​​​

[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb                ext4      9.8G   37M  9.2G   1% /data[root@itgank ~]# echo 1 > /sys/block/sdb/device/rescan[root@itgank ~]# resize2fs /dev/sdbresize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/sdb is mounted on /data; on-line resizing requiredold_desc_blocks = 2, new_desc_blocks = 3The filesystem on /dev/sdb is now 5242880 blocks long.[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb                ext4       20G   44M   19G   1% /data

xfs为例

[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb                xfs      9.8G   37M  9.2G   1% /data[root@itgank ~]# echo 1 > /sys/block/sdb/device/rescan[root@itgank ~]# xfs_growfs /dev/sdb[root@itgank ~]# df -ThFilesystem              Type      Size  Used Avail Use% Mounted ondevtmpfs                devtmpfs  1.9G     0  1.9G   0% /devtmpfs                   tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                   tmpfs     1.9G   12M  1.9G   1% /runtmpfs                   tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root xfs        53G  3.2G   50G   6% //dev/sda1               xfs       797M  151M  647M  19% /boottmpfs                   tmpfs     378M     0  378M   0% /run/user/0/dev/sdb                xfs        20G   44M   19G   1% /data
五、LVM

（1）通过LVM创建逻辑卷

三块大小为100G的磁盘，通过LVM创建逻辑卷并挂载目录

ext为例​​​​​​​

[root@itgank ~]# lsblkNAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTsda               8:0    0   55G  0 disk├─sda1            8:1    0  800M  0 part /boot├─sda2            8:2    0 39.2G  0 part│ ├─centos-root 253:0    0 52.2G  0 lvm  /│ └─centos-swap 253:1    0    2G  0 lvm  [SWAP]├─sda3            8:3    0    5G  0 part│ └─centos-root 253:0    0 52.2G  0 lvm  /└─sda4            8:4    0   10G  0 part  └─centos-root 253:0    0 52.2G  0 lvm  /sdb               8:16   0  100G  0 disksdc               8:32   0  100G  0 disksdd               8:48   0  100G  0 disksr0              11:0    1 1024M  0 rom[root@itgank ~]# pvcreate /dev/sdb  Physical volume "/dev/sdb" successfully created.[root@itgank ~]# pvcreate /dev/sdc  Physical volume "/dev/sdc" successfully created.[root@itgank ~]# pvcreate /dev/sdd  Physical volume "/dev/sdd" successfully created.[root@itgank ~]# vgcreate vgdata /dev/sdb  Volume group "vgdata" successfully created[root@itgank ~]# vgs  VG      #PV #LV #SN Attr   VSize    VFree  centos    3   2   0 wz--n-  <54.21g       0  vgdata   1   0   0 wz--n- <100.00g <100.00g[root@itgank ~]# vgextend vgdata /dev/sdc  Volume group "vgdata" successfully extended[root@itgank ~]# vgextend vgdata /dev/sdd  Volume group "vgdata" successfully extended[root@itgank ~]# vgs  VG      #PV #LV #SN Attr   VSize    VFree  centos    3   2   0 wz--n-  <54.21g       0  vgdata    3   0   0 wz--n-  <299.99g <299.99g[root@itgank ~]# lvcreate -l 100%FREE -n lvdata vgdata  Logical volume "lvdata" created.[root@itgank ~]# lvs  LV      VG      Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert  root    centos  -wi-ao----  <52.21g  swap    centos  -wi-ao----    2.00g  lvdata vgdata   -wi-a----- <299.99g[root@itgank ~]# mkfs -t ext4 /dev/vgdata/lvdatamke2fs 1.42.9 (28-Dec-2013)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks19660800 inodes, 78640128 blocks3932006 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=22271754242400 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks:        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,        4096000, 7962624, 11239424, 20480000, 23887872, 71663616 Allocating group tables: doneWriting inode tables: doneCreating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done [root@itgank ~]# mount /dev/vgdata/lvdata /data[root@itgank ~]# df -ThFilesystem                    Type      Size  Used Avail Use% Mounted ondevtmpfs                      devtmpfs  1.9G     0  1.9G   0% /devtmpfs                         tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                         tmpfs     1.9G   12M  1.9G   1% /runtmpfs                         tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root       xfs        53G  3.2G   50G   6% //dev/sda1                     xfs       797M  151M  647M  19% /boottmpfs                         tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata     ext4      296G   65M  281G   1% /data[root@itgank ~]# vim /etc/fstab  #末尾添加/dev/mapper/vgdata-lvdata  /data  ext4  defaults        0  0

xfs为例​​​​​​​

[root@itgank ~]# lsblkNAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTsda               8:0    0   55G  0 disk├─sda1            8:1    0  800M  0 part /boot├─sda2            8:2    0 39.2G  0 part│ ├─centos-root 253:0    0 52.2G  0 lvm  /│ └─centos-swap 253:1    0    2G  0 lvm  [SWAP]├─sda3            8:3    0    5G  0 part│ └─centos-root 253:0    0 52.2G  0 lvm  /└─sda4            8:4    0   10G  0 part  └─centos-root 253:0    0 52.2G  0 lvm  /sdb               8:16   0  100G  0 disksdc               8:32   0  100G  0 disksdd               8:48   0  100G  0 disksr0              11:0    1 1024M  0 rom[root@itgank ~]# pvcreate /dev/sdb  Physical volume "/dev/sdb" successfully created.[root@itgank ~]# pvcreate /dev/sdc  Physical volume "/dev/sdc" successfully created.[root@itgank ~]# pvcreate /dev/sdd  Physical volume "/dev/sdd" successfully created.[root@itgank ~]# vgcreate vgdata /dev/sdb  Volume group "vgdata" successfully created[root@itgank ~]# vgs  VG      #PV #LV #SN Attr   VSize    VFree  centos    3   2   0 wz--n-  <54.21g       0  vgdata   1   0   0 wz--n- <100.00g <100.00g[root@itgank ~]# vgextend vgdata /dev/sdc  Volume group "vgdata" successfully extended[root@itgank ~]# vgextend vgdata /dev/sdd  Volume group "vgdata" successfully extended[root@itgank ~]# vgs  VG      #PV #LV #SN Attr   VSize    VFree  centos    3   2   0 wz--n-  <54.21g       0  vgdata    3   0   0 wz--n-  <299.99g <299.99g[root@itgank ~]# lvcreate -l 100%FREE -n lvdata vgdata  Logical volume "lvdata" created.[root@itgank ~]# lvs  LV      VG      Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert  root    centos  -wi-ao----  <52.21g  swap    centos  -wi-ao----    2.00g  lvdata vgdata   -wi-a----- <299.99g[root@itgank ~]# mkfs -t xfs /dev/vgdata/lvdata[root@itgank ~]# mount /dev/vgdata/lvdata /data[root@itgank ~]# df -ThFilesystem                    Type      Size  Used Avail Use% Mounted ondevtmpfs                      devtmpfs  1.9G     0  1.9G   0% /devtmpfs                         tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                         tmpfs     1.9G   12M  1.9G   1% /runtmpfs                         tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root       xfs        53G  3.2G   50G   6% //dev/sda1                     xfs       797M  151M  647M  19% /boottmpfs                         tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata     xfs       296G   65M  281G   1% /data[root@itgank ~]# vim /etc/fstab  #末尾添加/dev/mapper/vgdata-lvdata  /data  xfs  defaults        0  0

（2）扩容逻辑卷

方式一：扩容磁盘以扩容逻辑卷容量

其中一块磁盘扩容到200G 如何扩容逻辑卷

ext为例​​​​​​​

[root@itgank ~]# pvresize /dev/sdb  Physical volume "/dev/sdb" changed  1 physical volume(s) resized or updated / 0 physical volume(s) not resized[root@itgank ~]# lvextend -l +100%FREE /dev/vgdata/lvdata  Size of logical volume vgdata/lvdata changed from <299.99 GiB (76797 extents) to <399.99 GiB (102397 extents).  Logical volume vgdata/lvdata successfully resized.[root@itgank ~]# resize2fs /dev/vgdata/lvdataresize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/vgdata/lvdata is mounted on /data; on-line resizing requiredold_desc_blocks = 38, new_desc_blocks = 50The filesystem on /dev/vgdata/lvdata is now 104854528 blocks long.[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   12M  1.9G   1% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata ext4      394G   72M  375G   1% /data=

xfs为例​​​​​​​

[root@itgank ~]# pvresize /dev/sdb  Physical volume "/dev/sdb" changed  1 physical volume(s) resized or updated / 0 physical volume(s) not resized[root@itgank ~]# lvextend -l +100%FREE /dev/vgdata/lvdata  Size of logical volume vgdata/lvdata changed from <299.99 GiB (76797 extents) to <399.99 GiB (102397 extents).  Logical volume vgdata/lvdata successfully resized.[root@itgank ~]# xfs_growfs /dev/vgdata/lvdata[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   12M  1.9G   1% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata xfs       394G   72M  375G   1% /data

方式二：新增磁盘以扩容逻辑卷容量

新增一块200G磁盘sde 如何增加到逻辑卷

ext为例

t@itgank ~]# pvcreate /dev/sde Physical volume "/dev/sde" successfully created.[root@itgank ~]# vgextend vgdata /dev/sde Volume group "vgdata" successfully extended[root@itgank ~]# lvextend -l +100%FREE /dev/mapper/vgdata-lvdata Size of logical volume vgdata/lvdata changed from <499.99 GiB (127997 extents) to 699.98 GiB (179196 extents). Logical volume vgdata/lvdata successfully resized.[root@itgank ~]# resize2fs /dev/mapper/vgdata-lvdataresize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/mapper/vgdata-lvdata is mounted on /data; on-line resizing requiredold_desc_blocks = 63, new_desc_blocks = 88The filesystem on /dev/mapper/vgdata-lvdata is now 183496704 blocks long.[root@itgank ~]# df -ThFilesystem Type Size Used Avail Use% Mounted ondevtmpfs devtmpfs 1.9G 0 1.9G 0% /devtmpfs tmpfs 1.9G 0 1.9G 0% /dev/shmtmpfs tmpfs 1.9G 20M 1.9G 2% /runtmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup/dev/mapper/centos-root xfs 53G 3.2G 50G 6% //dev/sda1 xfs 797M 151M 647M 19% /boottmpfs tmpfs 378M 0 378M 0% /run/user/0/dev/mapper/vgdata-lvdata ext4 689G 69M 658G 1% /data

xfs为例

[root@itgank ~]# pvcreate /dev/sde

  Physical volume "/dev/sde" successfully created.[root@itgank ~]# vgextend vgdata /dev/sde  Volume group "vgdata" successfully extended[root@itgank ~]# lvextend -l +100%FREE /dev/mapper/vgdata-lvdata  Size of logical volume vgdata/lvdata changed from <499.99 GiB (127997 extents) to 699.98 GiB (179196 extents).  Logical volume vgdata/lvdata successfully resized.[root@itgank ~]# xfs_growfs /dev/mapper/vgdata-lvdata[root@itgank ~]# df -ThFilesystem                Type      Size  Used Avail Use% Mounted ondevtmpfs                  devtmpfs  1.9G     0  1.9G   0% /devtmpfs                     tmpfs     1.9G     0  1.9G   0% /dev/shmtmpfs                     tmpfs     1.9G   20M  1.9G   2% /runtmpfs                     tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup/dev/mapper/centos-root   xfs        53G  3.2G   50G   6% //dev/sda1                 xfs       797M  151M  647M  19% /boottmpfs                     tmpfs     378M     0  378M   0% /run/user/0/dev/mapper/vgdata-lvdata xfs       689G   69M  658G   1% /data

文章转载自：

http://QHeepDKj.fhjnh.cn
http://PvgtaNR4.fhjnh.cn
http://SPzDIkmU.fhjnh.cn
http://h7ZNaGaC.fhjnh.cn
http://RKJngXOo.fhjnh.cn
http://Wi92hXaM.fhjnh.cn
http://4Ja1MfIK.fhjnh.cn
http://qxwSn044.fhjnh.cn
http://sq2dICd1.fhjnh.cn
http://W52TqKED.fhjnh.cn
http://MZeBu6In.fhjnh.cn
http://bmXOxO8i.fhjnh.cn
http://zGk3sdbZ.fhjnh.cn
http://3lyEBwP8.fhjnh.cn
http://v18kfty8.fhjnh.cn
http://bGsSYFAD.fhjnh.cn
http://f1AZSwmK.fhjnh.cn
http://pFemxasp.fhjnh.cn
http://RKDXM1Cp.fhjnh.cn
http://3OG8BEdE.fhjnh.cn
http://5OwLoVBx.fhjnh.cn
http://Nk9C56oM.fhjnh.cn
http://pum7Kgei.fhjnh.cn
http://0oIbs0z9.fhjnh.cn
http://LXjKihtr.fhjnh.cn
http://zRBohLBz.fhjnh.cn
http://yiAho8ZT.fhjnh.cn
http://SB0yIzzA.fhjnh.cn
http://Awxbbtx1.fhjnh.cn
http://nOSB8n49.fhjnh.cn
http://www.dtcms.com/wzjs/617924.html

相关文章：

  • 北京做养生SPA的网站建设制作企业宣传片拍摄公司
  • 自己的网站打不开了北京通网站建设
  • 郑州网站建设企业推荐怎么做电商运营
  • 上海网站开发定制wordpress标签分级
  • 网站编辑适不适合男生做wordpress 阌栾
  • 手机网站和电脑网站开发wordpress seo
  • 红安建设局官方网站河南小学网站建设
  • 临沂做网站wyjzgzs设计logo怎么设计
  • 企业为什么要建站点呢广州做网站公司电话
  • 商城网站大全做网站改版的
  • 沈阳市建设局网站首页嘉兴网络项目建站公司
  • 免费软件不收费网站WordPress相册插件pro
  • 网站建立策划书郑州设计logo公司
  • 6731官方网站下载it培训学校哪家好
  • 如何做学校的网站设计项目三的设计与制作
  • html5网站开发语言的有点亚马逊电商平台入口
  • 制作外贸网站的公司wordpress能放视频
  • iis网站批量导入如何去掉wordpress版权信息
  • 沈阳酒店企业网站制作温州网站排名团队
  • 沧州网站建设代理价格网站前端建设都需要什么
  • 站长素材网wordpress动态新闻代码
  • 建设银行个人网站打不开自己注册域名
  • 企业站网站公司免费网站
  • 义乌购网站做代销怎么样网盟推广平台
  • 上海网站推广有哪些用安卓手机做网站主机
  • 郑州高新区建设环保局网站wordpress p3
  • 招聘信息网站建设网站建设的实训技术总结
  • 网站建设费可分摊几年台州建设局网站
  • 做网站给菠菜引流玉林市住房和城乡建设局网站
  • 制作完整网站需要掌握哪些知识wordpress 字