前言:
此时看官们对“centos硬盘扩展分区”大约比较看重,大家都想要学习一些“centos硬盘扩展分区”的相关内容。那么小编同时在网上收集了一些关于“centos硬盘扩展分区””的相关内容,希望同学们能喜欢,各位老铁们一起来了解一下吧!扩容前的占用情况
扩容增加四块硬盘
一块960g没做RAID,挂载/dev/sdb
两块960g做了RAID1,挂载/dev/sdc
一块600g没做RAID,挂载/dev/sdd
初步规划给sdc划分到 /home 目录,给sdb和sdd划分给 / (根目录)
首先给sdc分区 fdisk /dev/sdc
新建分区 n
打印分区表 p (默认)
分区编号 1 (默认)
分区开始扇区 (默认)
分区结束扇区 (默认)
保存 w
因为整块硬盘只建立一个问去所以起始都按默认
为分区创建物理卷 pvcreate /dev/sbc1
将sdc1添加到centos卷 vgextend centos /dev/sdc1
将卷组100%容量分配到 /home 目录 lvextend -l +100%FREE /dev/centos/home
更新下 xfs_growfs /dev/centos/home
查看下目前分区
同理操作另外两块硬盘
[root@localhost data]# fdisk /dev/sdb欢迎使用 fdisk (util-linux 2.23.2)。更改将停留在内存中,直到您决定将更改写入磁盘。使用写入命令前请三思。Device does not contain a recognized partition table使用磁盘标识符 0xd7d38946 创建新的 DOS 磁盘标签。The device presents a logical sector size that is smaller thanthe physical sector size. Aligning to a physical sector (or optimalI/O) size boundary is recommended, or performance may be impacted.命令(输入 m 获取帮助):nPartition type: p primary (0 primary, 0 extended, 4 free) e extendedSelect (default p): Using default response p分区号 (1-4,默认 1):起始 扇区 (2048-1875385007,默认为 2048):将使用默认值 2048Last 扇区, +扇区 or +size{K,M,G} (2048-1875385007,默认为 1875385007):将使用默认值 1875385007分区 1 已设置为 Linux 类型,大小设为 894.3 GiB命令(输入 m 获取帮助):wThe partition table has been altered!Calling ioctl() to re-read partition table.正在同步磁盘。[root@localhost data]# pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created.[root@localhost data]# pvs PV VG Fmt Attr PSize PFree /dev/sda3 centos lvm2 a-- <222.31g 0 /dev/sdb1 lvm2 --- 894.25g 894.25g /dev/sdc1 centos lvm2 a-- <893.75g 0 [root@localhost data]# vgextend centos /dev/sdb1 Volume group "centos" successfully extended[root@localhost data]# lvextend -l +100%FREE /dev/centos/root Size of logical volume centos/root changed from 50.00 GiB (12800 extents) to 944.25 GiB (241728 extents). Logical volume centos/root successfully resized.[root@localhost data]# xfs_growfs /dev/centos/rootmeta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=3276800 blks = sectsz=4096 attr=2, projid32bit=1 = crc=1 finobt=0 spinodes=0data = bsize=4096 blocks=13107200, imaxpct=25 = sunit=0 swidth=0 blksnaming =version 2 bsize=4096 ascii-ci=0 ftype=1log =internal bsize=4096 blocks=6400, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1realtime =none extsz=4096 blocks=0, rtextents=0data blocks changed from 13107200 to 247529472[root@localhost data]# df -h文件系统 容量 已用 可用 已用% 挂载点devtmpfs 63G 0 63G 0% /devtmpfs 63G 0 63G 0% /dev/shmtmpfs 63G 4.1G 59G 7% /runtmpfs 63G 0 63G 0% /sys/fs/cgroup/dev/mapper/centos-root 945G 42G 904G 5% //dev/sda2 1014M 170M 845M 17% /boot/dev/sda1 200M 12M 189M 6% /boot/efi/dev/mapper/centos-home 1.1T 32G 1.1T 3% /hometmpfs 13G 52K 13G 1% /run/user/1000tmpfs 13G 64K 13G 1% /run/user/0/dev/loop0 9.5G 9.5G 0 100% /mnt/yumoverlay 945G 42G 904G 5% /var/lib/docker/overlay2/c6d7508c158d403889a316b54399859839cc0ffd58668f9ed961f45fc1bcd4f4/mergedshm 64M 16K 64M 1% /var/lib/docker/containers/69c60e2b7825a32846fb82740bbf06955630fd5657bbc511392ccbd1dfb054c6/mounts/shm[root@localhost data]# fdisk -lWARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.磁盘 /dev/sda:240.0 GB, 239990276096 字节,468731008 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 4096 字节I/O 大小(最小/最佳):4096 字节 / 4096 字节磁盘标签类型:gptDisk identifier: F661ED7A-B842-464C-ACA3-FABDB0533A05# Start End Size Type Name 1 2048 411647 200M EFI System EFI System Partition 2 411648 2508799 1G Microsoft basic 3 2508800 468729855 222.3G Linux LVM 磁盘 /dev/mapper/centos-root:1013.9 GB, 1013880717312 字节,1980235776 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 4096 字节I/O 大小(最小/最佳):4096 字节 / 4096 字节磁盘 /dev/mapper/centos-swap:4294 MB, 4294967296 字节,8388608 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 4096 字节I/O 大小(最小/最佳):4096 字节 / 4096 字节磁盘 /dev/mapper/centos-home:1140.4 GB, 1140372537344 字节,2227290112 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 4096 字节I/O 大小(最小/最佳):262144 字节 / 262144 字节磁盘 /dev/loop0:10.2 GB, 10200547328 字节,19922944 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 512 字节I/O 大小(最小/最佳):512 字节 / 512 字节磁盘标签类型:dos磁盘标识符:0x6b8b4567 设备 Boot Start End Blocks Id System/dev/loop0p1 * 0 19922943 9961472 0 Empty/dev/loop0p2 5724 23323 8800 ef EFI (FAT-12/16/32)磁盘 /dev/sdb:960.2 GB, 960197124096 字节,1875385008 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 4096 字节I/O 大小(最小/最佳):4096 字节 / 4096 字节磁盘标签类型:dos磁盘标识符:0xd7d38946 设备 Boot Start End Blocks Id System/dev/sdb1 2048 1875385007 937691480 83 Linux磁盘 /dev/sdc:959.7 GB, 959656755200 字节,1874329600 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 512 字节I/O 大小(最小/最佳):262144 字节 / 262144 字节磁盘标签类型:dos磁盘标识符:0x325934ec 设备 Boot Start End Blocks Id System/dev/sdc1 2048 1874329599 937163776 83 Linux磁盘 /dev/sdd:600.1 GB, 600127266816 字节,1172123568 个扇区Units = 扇区 of 1 * 512 = 512 bytes扇区大小(逻辑/物理):512 字节 / 512 字节I/O 大小(最小/最佳):512 字节 / 512 字节[root@localhost data]# fdisk /dev/sdd欢迎使用 fdisk (util-linux 2.23.2)。更改将停留在内存中,直到您决定将更改写入磁盘。使用写入命令前请三思。Device does not contain a recognized partition table使用磁盘标识符 0x8f09ef63 创建新的 DOS 磁盘标签。命令(输入 m 获取帮助):nPartition type: p primary (0 primary, 0 extended, 4 free) e extendedSelect (default p): Using default response p分区号 (1-4,默认 1):起始 扇区 (2048-1172123567,默认为 2048):将使用默认值 2048Last 扇区, +扇区 or +size{K,M,G} (2048-1172123567,默认为 1172123567):将使用默认值 1172123567分区 1 已设置为 Linux 类型,大小设为 558.9 GiB命令(输入 m 获取帮助):wThe partition table has been altered!Calling ioctl() to re-read partition table.正在同步磁盘。[root@localhost data]# pvcreate /dev/sdd1 Physical volume "/dev/sdd1" successfully created.[root@localhost data]# pvs PV VG Fmt Attr PSize PFree /dev/sda3 centos lvm2 a-- <222.31g 0 /dev/sdb1 centos lvm2 a-- 894.25g 0 /dev/sdc1 centos lvm2 a-- <893.75g 0 /dev/sdd1 lvm2 --- 558.91g 558.91g[root@localhost data]# vgextend centos /dev/sdd1 Volume group "centos" successfully extended[root@localhost data]# pvs PV VG Fmt Attr PSize PFree /dev/sda3 centos lvm2 a-- <222.31g 0 /dev/sdb1 centos lvm2 a-- 894.25g 0 /dev/sdc1 centos lvm2 a-- <893.75g 0 /dev/sdd1 centos lvm2 a-- <558.91g <558.91g[root@localhost data]# lvextend -l +100%FREE /dev/centos/root Size of logical volume centos/root changed from 944.25 GiB (241728 extents) to <1.47 TiB (384808 extents). Logical volume centos/root successfully resized.[root@localhost data]# xfs_growfs /dev/centos/rootmeta-data=/dev/mapper/centos-root isize=512 agcount=76, agsize=3276800 blks = sectsz=4096 attr=2, projid32bit=1 = crc=1 finobt=0 spinodes=0data = bsize=4096 blocks=247529472, imaxpct=25 = sunit=0 swidth=0 blksnaming =version 2 bsize=4096 ascii-ci=0 ftype=1log =internal bsize=4096 blocks=6400, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1realtime =none extsz=4096 blocks=0, rtextents=0data blocks changed from 247529472 to 394043392[root@localhost data]# df -h文件系统 容量 已用 可用 已用% 挂载点devtmpfs 63G 0 63G 0% /devtmpfs 63G 0 63G 0% /dev/shmtmpfs 63G 4.1G 59G 7% /runtmpfs 63G 0 63G 0% /sys/fs/cgroup/dev/mapper/centos-root 1.5T 42G 1.5T 3% //dev/sda2 1014M 170M 845M 17% /boot/dev/sda1 200M 12M 189M 6% /boot/efi/dev/mapper/centos-home 1.1T 32G 1.1T 3% /hometmpfs 13G 52K 13G 1% /run/user/1000tmpfs 13G 64K 13G 1% /run/user/0/dev/loop0 9.5G 9.5G 0 100% /mnt/yumoverlay 1.5T 42G 1.5T 3% /var/lib/docker/overlay2/c6d7508c158d403889a316b54399859839cc0ffd58668f9ed961f45fc1bcd4f4/mergedshm 64M 16K 64M 1% /var/lib/docker/containers/69c60e2b7825a32846fb82740bbf06955630fd5657bbc511392ccbd1dfb054c6/mounts/shm
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