特克斯与凯科斯群岛域名官方网站,营销号是啥意思,定制开发app价格,网站前台和后台一、逻辑卷的介绍
生成环境中逻辑卷使用率很高
逻辑卷的诞生#xff1a;如果对磁盘直接使用fdisk分区#xff0c;那么这中分区#xff0c;我们叫做Linux的标准分区#xff0c;Linux的标准分区格式化成文件系统之后#xff0c;挂载使用#xff0c;那么一旦文件系统的空间…一、逻辑卷的介绍
生成环境中逻辑卷使用率很高
逻辑卷的诞生如果对磁盘直接使用fdisk分区那么这中分区我们叫做Linux的标准分区Linux的标准分区格式化成文件系统之后挂载使用那么一旦文件系统的空间满了是无法进行扩容的。如果一定要进行扩容需要将数据备份出来再换一个更大的文件系统再将数据还原回去。这种方法效果特别低。
逻辑卷的
pv(plysical volume)物理卷
vg(volume group) 卷组
lv(logical volume) 逻辑卷
pv的创建pv的删除向pv里面加入新的块设备就相当于扩容pv从pv里边删除块设备就相当于缩容pv
vg的创建vg的删除vg的扩容vg的缩容不包含
lv的创建lv对的删除lv的扩容lv的缩容不包含 逻辑卷创建顺序
pvcreate创建物理卷vgcreate 创建卷组lvcreate 创建逻辑卷格式化逻辑卷mkfs挂载逻辑卷mount
逻辑卷删除顺序
卸载逻辑卷umountlvremove 删除逻辑卷 vgreduce 从卷组中移除物理卷vgremove 删除卷组pvremove 删除物理卷 二、创建物理卷PV
1、pvcreate创建物理卷
# 需要先进行分区
[server root ~] # fdisk /dev/sdc -lDisk /dev/sdc: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units sectors of 1 * 512 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xc1c4f2abDevice Boot Start End Blocks Id System
/dev/sdc1 2048 2099199 1048576 83 Linux
/dev/sdc2 2099200 6293503 2097152 83 Linux
[server root ~] # #创建和删除
[server root ~] # pvcreate /dev/sdc1 Physical volume /dev/sdc1 successfully created.
[server root ~] # pvcreate /dev/sdc2 Physical volume /dev/sdc2 successfully created.[server root ~] # pvsPV VG Fmt Attr PSize PFree/dev/sdc1 lvm2 --- 1.00g 1.00g/dev/sdc2 lvm2 --- 2.00g 2.00g# PV物理卷
/dev/sdc1第一个物理卷在 /dev/sdc 磁盘上的第一个分区
/dev/sdc2第二个物理卷在 /dev/sdc 磁盘上的第二个分区
# VG卷组
# Fmt格式。lvm2 是当前LVM的版本表示这是一个LVM2格式的物理卷LVM的第二版格式
# Attr属性。 --- 表示该物理卷没有特殊的属性标记
# PSize物理卷大小
/dev/sdc1 的大小是 1.00GB
/dev/sdc2 的大小是 2.00GB
# PFree物理卷空虚空间
/dev/sdc1 上有 1.00GB 的空闲空间
/dev/sdc2 上有 2.00GB 的空闲空间 2、如果pv已经被某个vg使用那么无法被删除
[server root ~] # pvcreate /dev/sdc{1..2}Physical volume /dev/sdc1 successfully created.Physical volume /dev/sdc2 successfully created.
[server root ~] # pvsPV VG Fmt Attr PSize PFree/dev/sdc1 lvm2 --- 1.00g 1.00g/dev/sdc2 lvm2 --- 2.00g 2.00g
[server root ~] # pvdisplay /dev/sdc1 /dev/sdc1 is a new physical volume of 1.00 GiB--- NEW Physical volume ---PV Name /dev/sdc1VG Name PV Size 1.00 GiBAllocatable NOPE Size 0 Total PE 0Free PE 0Allocated PE 0PV UUID 5GMmBz-KjXz-iXOS-12lx-fBaF-W2db-3LRzXY
pvcreate也可以直接创建一整个磁盘
# 前提是磁盘没有进行分区如果进行分区了需要删除分区然后进行创建
[server root ~] # pvcreate /dev/sdbDevice /dev/sdb excluded by a filter.
[server root ~] # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 512M 0 part /boot
├─sda2 8:2 0 4G 0 part [SWAP]
└─sda3 8:3 0 35.5G 0 part /
sdb 8:16 0 20G 0 disk
├─sdb1 8:17 0 5G 0 part /mount-point1
├─sdb2 8:18 0 1K 0 part
├─sdb5 8:21 0 5G 0 part /mount-point2
└─sdb6 8:22 0 6G 0 part /mount-point3
sdc 8:32 0 10G 0 disk
├─sdc1 8:33 0 1G 0 part
└─sdc2 8:34 0 2G 0 part
sr0 11:0 1 4.4G 0 rom
[server root ~] # fdisk /dev/sdc
Welcome 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): d
Partition number (1,2, default 2):
Partition 2 is deletedCommand (m for help): d
Selected partition 1
Partition 1 is deletedCommand (m for help): d
No partition is defined yet!Command (m for help): w
The partition table has been altered!Calling ioctl() to re-read partition table.
Syncing disks.
[server root ~] #
[server root ~] # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 512M 0 part /boot
├─sda2 8:2 0 4G 0 part [SWAP]
└─sda3 8:3 0 35.5G 0 part /
sdb 8:16 0 20G 0 disk
├─sdb1 8:17 0 5G 0 part /mount-point1
├─sdb2 8:18 0 1K 0 part
├─sdb5 8:21 0 5G 0 part /mount-point2
└─sdb6 8:22 0 6G 0 part /mount-point3
sdc 8:32 0 10G 0 disk
sr0 11:0 1 4.4G 0 rom [server root ~] # pvcreate /dev/sdc
WARNING: dos signature detected on /dev/sdc at offset 510. Wipe it? [y/n]: yWiping dos signature on /dev/sdc.Physical volume /dev/sdc successfully created.
[server root ~] # pvsPV VG Fmt Attr PSize PFree /dev/sdc lvm2 --- 10.00g 10.00g二、创建卷组VG
1、vgcreate创建 卷组
[server root ~] # fdisk /dev/sdc -lDisk /dev/sdc: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units sectors of 1 * 512 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x9c82f447Device Boot Start End Blocks Id System
/dev/sdc1 2048 2099199 1048576 83 Linux
/dev/sdc2 2099200 6293503 2097152 83 Linux[server root ~] # pvcreate /dev/sdc1Physical volume /dev/sdc1 successfully created.
[server root ~] # pvcreate /dev/sdc2Physical volume /dev/sdc2 successfully created.
[server root ~] # pvsPV VG Fmt Attr PSize PFree/dev/sdc1 lvm2 --- 1.00g 1.00g/dev/sdc2 lvm2 --- 2.00g 2.00g
[server root ~] # vgcreate vg1 /dev/sdc1Volume group vg1 successfully created
[server root ~] # vgcreate vg2 /dev/sdc2 Volume group vg2 successfully created
[server root ~] #
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg1 1 0 0 wz--n- 1020.00m 1020.00mvg2 1 0 0 wz--n- 2.00g 2.00g
[server root ~] # pvsPV VG Fmt Attr PSize PFree /dev/sdc1 vg1 lvm2 a-- 1020.00m 1020.00m/dev/sdc2 vg2 lvm2 a-- 2.00g 2.00g vg卷组的删除如果vg上有逻辑卷在使用那么vg无法删除
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg1 1 0 0 wz--n- 1020.00m 1020.00mvg2 1 0 0 wz--n- 2.00g 2.00g
[server root ~] # vgremove vg1Volume group vg1 successfully removed
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg2 1 0 0 wz--n- 2.00g 2.00g
[server root ~] # vgremove vg2Volume group vg2 successfully removed
[server root ~] # vgs
[server root ~] # 2、vg卷组的扩容
# 在 /dev/sdc3 物理卷PV上创建了一个名为 vg2 的卷组VG
[server root ~] # vgcreate vg2 /dev/sdc3Physical volume /dev/sdc3 successfully created.Volume group vg2 successfully created# pvs查看物理卷vgs查看卷组信息
[server root ~] # pvsPV VG Fmt Attr PSize PFree /dev/sdc1 lvm2 --- 1.00g 1.00g/dev/sdc2 lvm2 --- 2.00g 2.00g/dev/sdc3 vg2 lvm2 a-- 3.00g 3.00g
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg2 1 0 0 wz--n- 3.00g 3.00g
# VG卷组名称
# #PV物理卷数量
# #LV逻辑卷数量
# #SN快照数量
# Attr属性wz--n-这是卷组的属性表示该卷组的状态和特性w表示该卷组是可写的writable。z表示该卷组处于正常状态没有错误。--表示没有设置其他特别的标志。n表示该卷组是可扩展的可以添加更多物理卷。-表示没有设置其他标志。
# VSize卷组的总大小
# VFree卷组的剩余空间# 将 /dev/sdc1 扩展到卷组 vg2即把 /dev/sdc1 纳入 vg2 卷组进行管理
[server root ~] # vgextend vg2 /dev/sdc1Volume group vg2 successfully extended
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFreevg2 2 0 0 wz--n- 3.99g 3.99g
[server root ~] # # 删除旧的卷组创建新的卷组 vg2并将 /dev/sdc1 作为物理卷PV添加进这个卷组。
# -s 8M 参数指定了物理扩展PE的大小为 8MB
[server root ~] # vgremove vg2Volume group vg2 successfully removed
[server root ~] #
[server root ~] # vgs
[server root ~] # vgcreate vg2 /dev/sdc1 -s 8MVolume group vg2 successfully created
[server root ~] # vgdisplay vg2--- Volume group ---VG Name vg2System ID Format lvm2Metadata Areas 1Metadata Sequence No 1VG Access read/writeVG Status resizableMAX LV 0Cur LV 0Open LV 0Max PV 0Cur PV 1Act PV 1VG Size 1016.00 MiBPE Size 8.00 MiBTotal PE 127Alloc PE / Size 0 / 0 Free PE / Size 127 / 1016.00 MiBVG UUID 2l9GEi-6Kiw-RdcQ-vF9G-zKMx-B2y2-Pt8RnB 三、创建逻辑卷LV
1、lvcreate 命令创建语法 lvcreate -n 逻辑卷名字 -L 大小为多少 卷组名 -n 表示逻辑卷的名字
-L 表示逻辑卷的大小
vg2 表示使用卷组vg2创建该逻辑卷 # 现在卷组只有一个大小是1016M没有相关逻辑卷的信息
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg2 1 0 0 wz--n- 1016.00m 1016.00m
[server root ~] # lvs# 创建一个逻辑卷lv1大小为300M
[server root ~] # lvcreate -n lv1 -L 300M vg2Rounding up size to full physical extent 304.00 MiBLogical volume lv1 created.
[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1 vg2 -wi-a----- 304.00m
[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1 vg2 -wi-a----- 304.00m
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg2 1 1 0 wz--n- 1016.00m 712.00m# 创建lv2逻辑卷大小为800M
[server root ~] # lvcreate -n lv2 -L 800M vg2Volume group vg2 has insufficient free space (89 extents): 100 required.
# 卷组总大小只有1016M剩余712M所有创建报错了需要扩容vg2卷组[server root ~] # vgextend vg2 /dev/sdc3Volume group vg2 successfully extended# #PV变为2表示现在卷组vg2包含了2个物理卷
# VSize增加为3.98GBVFree也增加为大约3.69GB。
[server root ~] # vgsVG #PV #LV #SN Attr VSize VFree vg2 2 1 0 wz--n- 3.98g 3.69g# 再次创建逻辑卷lv2大小为800MB
[server root ~] # lvcreate -n lv2 -L 800M vg2Logical volume lv2 created.
[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1 vg2 -wi-a----- 304.00m lv2 vg2 -wi-a----- 800.00m
[server root ~] # 2、逻辑卷格式化
逻辑卷创建完成之后可以直接格式化成为文件系统使用
如果卷组下面创建了一个新的逻辑卷那么该逻辑卷就会自动的在设备文件路径出现/dev/vgname/lvname
[server root ~] # ls /dev/vgs2
ls: cannot access /dev/vgs2: No such file or directory
[server root ~] # ls /dev/vg2
lv1 lv2
[server root ~] # ls /dev/vg2/ -l
total 0
lrwxrwxrwx 1 root root 7 Nov 26 16:18 lv1 - ../dm-0
lrwxrwxrwx 1 root root 7 Nov 27 08:33 lv2 - ../dm-1
[server root ~] # ls -l /dev/dm-1 /dev/dm-1
brw-rw---- 1 root disk 253, 1 Nov 27 08:33 /dev/dm-1
brw-rw---- 1 root disk 253, 1 Nov 27 08:33 /dev/dm-1
# dm设备就表示逻辑卷的本尊。dm全拼是device mapper[server root ~] # ls /dev/mapper/ -l
total 0
crw------- 1 root root 10, 236 Nov 26 16:18 control
lrwxrwxrwx 1 root root 7 Nov 26 16:18 vg2-lv1 - ../dm-0
lrwxrwxrwx 1 root root 7 Nov 27 08:33 vg2-lv2 - ../dm-1# 列出了通过 UUID通用唯一标识符标识的磁盘分区和设备的符号链接
# /dev/disk/by-uuid/ 是一个符号链接目录它包含了每个磁盘分区包括硬盘、固态硬盘、光驱等的 UUID 与设备节点之间的映射。UUID 是一种唯一标识符用于标识磁盘分区而不是基于设备名称如 /dev/sda1来识别分区
[server root ~] # ls -l /dev/disk/by-uuid/
total 0
lrwxrwxrwx 1 root root 9 Nov 26 10:57 2022-07-26-15-09-17-00 - ../../sr0
lrwxrwxrwx 1 root root 10 Nov 26 10:57 48826076-975a-4d59-bf1a-5b1004e96f29 - ../../sda2
lrwxrwxrwx 1 root root 10 Nov 26 10:57 4f4fe896-0d9e-4298-a6db-e0e314775bf0 - ../../sdb6
lrwxrwxrwx 1 root root 10 Nov 26 10:57 51cbea6f-e37d-4ef5-a3f9-28a726c74085 - ../../sdb1
lrwxrwxrwx 1 root root 10 Nov 26 10:57 60a32a39-bdf6-4467-8893-3fc68045171b - ../../sdb5
lrwxrwxrwx 1 root root 10 Nov 26 10:57 7f5b46d3-e0da-430a-97f2-2e6a19f9e4ff - ../../sda3
lrwxrwxrwx 1 root root 10 Nov 26 10:57 ebaf11a7-f84f-4429-8df8-0ee0111e76e5 - ../../sda1# mkfs.ext4格式化逻辑卷lv1
[server root ~] # mkfs.
mkfs.btrfs mkfs.cramfs mkfs.ext2 mkfs.ext3 mkfs.ext4 mkfs.minix mkfs.xfs
[server root ~] # mkfs.ext4 /dev/mapper/vg2-lv1
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label
OS type: Linux
Block size1024 (log0)
Fragment size1024 (log0)
Stride0 blocks, Stripe width0 blocks
77824 inodes, 311296 blocks
15564 blocks (5.00%) reserved for the super user
First data block1
Maximum filesystem blocks33947648
38 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729, 204801, 221185Allocating group tables: done
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done [server root ~] # ls -l /dev/disk/by-uuid/
total 0
lrwxrwxrwx 1 root root 9 Nov 26 10:57 2022-07-26-15-09-17-00 - ../../sr0
lrwxrwxrwx 1 root root 10 Nov 26 10:57 48826076-975a-4d59-bf1a-5b1004e96f29 - ../../sda2
lrwxrwxrwx 1 root root 10 Nov 26 10:57 4f4fe896-0d9e-4298-a6db-e0e314775bf0 - ../../sdb6
lrwxrwxrwx 1 root root 10 Nov 26 10:57 51cbea6f-e37d-4ef5-a3f9-28a726c74085 - ../../sdb1
lrwxrwxrwx 1 root root 10 Nov 26 10:57 60a32a39-bdf6-4467-8893-3fc68045171b - ../../sdb5
lrwxrwxrwx 1 root root 10 Nov 26 10:57 7f5b46d3-e0da-430a-97f2-2e6a19f9e4ff - ../../sda3
lrwxrwxrwx 1 root root 10 Nov 27 10:17 8aea89c0-606d-4942-adb6-0a8263d32515 - ../../dm-0
lrwxrwxrwx 1 root root 10 Nov 26 10:57 ebaf11a7-f84f-4429-8df8-0ee0111e76e5 - ../../sda13、逻辑卷的删除
[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1 vg2 -wi-a----- 304.00m lv2 vg2 -wi-a----- 800.00m
[server root ~] # lvremove lv2Volume group lv2 not foundCannot process volume group lv2
[server root ~] # lvremove /dev/vg2/lv2
Do you really want to remove active logical volume vg2/lv2? [y/n]: yLogical volume lv2 successfully removed
[server root ~] # lvremove /dev/vg2/lv1
Do you really want to remove active logical volume vg2/lv1? [y/n]: yLogical volume lv1 successfully removed
[server root ~] # lvs
[server root ~] # 4、逻辑卷的扩容
# 创建大小为200M的lv1-ext4逻辑卷
[server root ~] # lvcreate -n lv1-ext4 vg2 -L 200M
WARNING: ext4 signature detected on /dev/vg2/lv1-ext4 at offset 1080. Wipe it? [y/n]: YWiping ext4 signature on /dev/vg2/lv1-ext4.Logical volume lv1-ext4 created.[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1-ext4 vg2 -wi-a----- 200.00m # 创建大小为500M的lv2-xfs 逻辑卷
[server root ~] # lvcreate -n lv2-xfs vg2 -L 500MRounding up size to full physical extent 504.00 MiBLogical volume lv2-xfs created.[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1-ext4 vg2 -wi-a----- 200.00m lv2-xfs vg2 -wi-a----- 504.00m# 格式化lv1-ext4的逻辑卷
[server root ~] # mkfs.ext4 /dev/vg2/lv1-ext4
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label
OS type: Linux
Block size1024 (log0)
Fragment size1024 (log0)
Stride0 blocks, Stripe width0 blocks
51200 inodes, 204800 blocks
10240 blocks (5.00%) reserved for the super user
First data block1
Maximum filesystem blocks33816576
25 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done # 格式化lv2-xfs的逻辑卷
[server root ~] # mkfs.xfs /dev/vg2/lv2-xfs
meta-data/dev/vg2/lv2-xfs isize512 agcount4, agsize32256 blks sectsz512 attr2, projid32bit1 crc1 finobt0, sparse0
data bsize4096 blocks129024, imaxpct25 sunit0 swidth0 blks
naming version 2 bsize4096 ascii-ci0 ftype1
log internal log bsize4096 blocks855, version2 sectsz512 sunit0 blks, lazy-count1
realtime none extsz4096 blocks0, rtextents0# 创建目录并挂载
[server root ~] # mkdir /ext4-test /xfs-test
[server root ~] # mount -t ext4 /dev/vg2/lv1-ext4 /ext4-test/
[server root ~] # mount /dev/vg2/lv2-xfs /xfs-test/
[server root ~] #
[server root ~] # df -Th /xfs-test/ /ext4-test/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg2-lv2--xfs xfs 501M 26M 476M 6% /xfs-test
/dev/mapper/vg2-lv1--ext4 ext4 190M 1.6M 175M 1% /ext4-test# 通过dd命令写入数据
[server root ~] # dd if/dev/zero of/xfs-test/file
dd: writing to ‘/xfs-test/file’: No space left on device
9732570 records in
9732560 records out
498307072 bytes (498 MB) copied, 6.33404 s, 78.7 MB/s
[server root ~] # dd if/dev/zero of/ext4-test/file
dd: writing to ‘/ext4-test/file’: No space left on device
3771770 records in
3771760 records out
193114112 bytes (193 MB) copied, 3.09574 s, 62.4 MB/s# 查看磁盘空间直接写满了此时无法在对应目录下创建文件相关操作
[server root ~] # df -Th /xfs-test/ /ext4-test/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg2-lv2--xfs xfs 501M 501M 20K 100% /xfs-test
/dev/mapper/vg2-lv1--ext4 ext4 190M 186M 0 100% /ext4-test
[server root ~] # 在线扩容在线扩容是指的文件系统不能卸载文件. # 将lv1-ext4扩容到300M
# 将lv2-xfs扩容到700M
[server root ~] # lvextend /dev/vg2/lv1-ext4 -L 300MRounding size to boundary between physical extents: 304.00 MiB.Size of logical volume vg2/lv1-ext4 changed from 200.00 MiB (25 extents) to 304.00 MiB (38 extents).Logical volume vg2/lv1-ext4 successfully resized.
[server root ~] # lvextend /dev/vg2/lv2-xfs -L 700MRounding size to boundary between physical extents: 704.00 MiB.Size of logical volume vg2/lv2-xfs changed from 504.00 MiB (63 extents) to 704.00 MiB (88 extents).Logical volume vg2/lv2-xfs successfully resized.
[server root ~] # lvsLV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convertlv1-ext4 vg2 -wi-ao---- 304.00m lv2-xfs vg2 -wi-ao---- 704.00m
[server root ~] # df -Th /ext4-test /xfs-test
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg2-lv1--ext4 ext4 190M 186M 0 100% /ext4-test
/dev/mapper/vg2-lv2--xfs xfs 501M 501M 20K 100% /xfs-test#因为扩容的部分没有格式化所以文件系统没有检测不到
# ext4将文件系统加入到系统操作
[server root ~] # resize2fs /dev/vg2/lv1-ext4
resize2fs 1.42.9 (28-Dec-2013)
Filesystem at /dev/vg2/lv1-ext4 is mounted on /ext4-test; on-line resizing required
old_desc_blocks 2, new_desc_blocks 3
The filesystem on /dev/vg2/lv1-ext4 is now 311296 blocks long.[server root ~] # df -Th /ext4-test/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg2-lv1--ext4 ext4 291M 187M 87M 69% /ext4-test# xfs将文件系统加入到系统操作
[server root ~] # xfs_
xfs_admin xfs_db xfs_fsr xfs_io xfs_metadump xfs_quota
xfs_bmap xfs_estimate xfs_growfs xfs_logprint xfs_mkfile xfs_repair
xfs_copy xfs_freeze xfs_info xfs_mdrestore xfs_ncheck xfs_rtcp
[server root ~] # xfs_growfs /dev/vg2/lv2-xfs
meta-data/dev/mapper/vg2-lv2--xfs isize512 agcount4, agsize32256 blks sectsz512 attr2, projid32bit1 crc1 finobt0 spinodes0
data bsize4096 blocks129024, imaxpct25 sunit0 swidth0 blks
naming version 2 bsize4096 ascii-ci0 ftype1
log internal bsize4096 blocks855, version2 sectsz512 sunit0 blks, lazy-count1
realtime none extsz4096 blocks0, rtextents0
data blocks changed from 129024 to 180224
[server root ~] # df -Th /xfs-test/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg2-lv2--xfs xfs 701M 501M 200M 72% /xfs-test提示我建议多操作几遍加深对逻辑卷如何创建以及使用的理解
好了下一篇文章见
