LVM XFS增加硬盘分区容量(resize2fs: Bad magic number in super-block while)

 LVM XFS增加硬盘分区容量(resize2fs: Bad magic number in super-block while) -- ::

分类： Linux

LVM XFS增加硬盘分区容量(resize2fs: Bad magic number in super-block while)
给某个硬盘增加分区之后
[root@Mysql01-- ~]# df -h
Filesystem                            Size  Used Avail Use% Mounted on
/dev/mapper/vg_mysql0121366-LogVol02  .7G  .6G  .8G  % /
tmpfs                                 495M       495M   % /dev/shm
/dev/sda1                             194M   29M  155M  % /boot
/dev/mapper/vg_mysql0121366-LogVol01  .0G  .1G  .0G  % /data
这里增加/data大小
[root@Mysql01-- ~]# fdisk -l /dev/sda

Disk /dev/sda: 40.8 GB,  bytes
 heads,  sectors/track,  cylinders
Units = cylinders of  *  =  bytes
Sector size (logical/physical):  bytes /  bytes
I/O size (minimum/optimal):  bytes /  bytes
Disk identifier: 0x000eb81f

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *                                Linux
Partition  does not end on cylinder boundary.
/dev/sda2                             8e  Linux LVM

进行分区
[root@Mysql01-- ~]# fdisk /dev/sda

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
         switch off the mode (command 'c') and change display units to
         sectors (command 'u').

Command (m for help): n
Command action
   e   extended
   p   primary partition (-)
p
Partition number (-):
First cylinder (-, default ):
Using default value
Last cylinder, +cylinders or +size{K,M,G} (-, default ):
Using default value 

Command (m for help): p

Disk /dev/sda: 40.8 GB,  bytes
 heads,  sectors/track,  cylinders
Units = cylinders of  *  =  bytes
Sector size (logical/physical):  bytes /  bytes
I/O size (minimum/optimal):  bytes /  bytes
Disk identifier: 0x000eb81f

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *                                Linux
Partition  does not end on cylinder boundary.
/dev/sda2                             8e  Linux LVM
/dev/sda3                             Linux

Command (m for help): t
Partition number (-):
Hex code (type L to list codes): 8e
Changed system type of partition  to 8e (Linux LVM)

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error : Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe() or kpartx()
Syncing disks.

重启服务器或者　partprobe
创建物理卷
[root@Mysql01-- ~]# pvcreate /dev/sda3
  Physical volume "/dev/sda3" successfully created
使用vgscan查询物理卷
[root@Mysql01-- ~]# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "vg_mysql0121366" using metadata type lvm2
使用新增物理卷扩展vg
[root@Mysql01-- ~]# vgextend vg_mysql0121366 /dev/sda3
  Volume group "vg_mysql0121366" successfully extended
[root@Mysql01-- ~]# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "vg_mysql0121366" using metadata type lvm2
  查询vg
[root@Mysql01-- ~]# vgdisplay
  --- Volume group ---
  VG Name               vg_mysql0121366
  System ID
  Format                lvm2
  Metadata Areas
  Metadata Sequence No
  VG Access             read/write
  VG Status             resizable
  MAX LV
  Cur LV
  Open LV
  Max PV
  Cur PV
  Act PV
  VG Size               37.79 GiB
  PE Size               4.00 MiB
  Total PE
  Alloc PE / Size        / 17.80 GiB
  Free  PE / Size        / 19.99 GiB
  VG UUID               Zy2PVv-xSsx-NEAv-L6ba-G8Oy-tBBq-5zXKQm
 查询lv
[root@Mysql01-- ~]# lvdisplay
  --- Logical volume ---
  LV Path                /dev/vg_mysql0121366/LogVol01
  LV Name                LogVol01
  VG Name                vg_mysql0121366
  LV UUID                5znkJ2-wdeZ-Y2o1-ECDS-gzzl-PqaS-qo2yZR
  LV Write Access        read/write
  LV Creation host, time Mysql01--, -- :: +
  LV Status              available
  # open
  LV Size                8.00 GiB
  Current LE
  Segments
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to
  Block device           :

  --- Logical volume ---
  LV Path                /dev/vg_mysql0121366/LogVol00
  LV Name                LogVol00
  VG Name                vg_mysql0121366
  LV UUID                b1FV1n-iKyK-kZ23-glRO-opFh-gDRp-TzWNcL
  LV Write Access        read/write
  LV Creation host, time Mysql01--, -- :: +
  LV Status              available
  # open
  LV Size                2.00 GiB
  Current LE
  Segments
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to
  Block device           :

  --- Logical volume ---
  LV Path                /dev/vg_mysql0121366/LogVol02
  LV Name                LogVol02
  VG Name                vg_mysql0121366
  LV UUID                eoVdk3-cbcP-9PlI-kZBL-6pY2-Jpbl-1WI2uH
  LV Write Access        read/write
  LV Creation host, time Mysql01--, -- :: +
  LV Status              available
  # open
  LV Size                7.80 GiB
  Current LE
  Segments
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to
  Block device           :

[root@Mysql01-- ~]# df -h
Filesystem                            Size  Used Avail Use% Mounted on
/dev/mapper/vg_mysql0121366-LogVol02  .7G  .6G  .8G  % /
tmpfs                                 495M       495M   % /dev/shm
/dev/sda1                             194M   29M  155M  % /boot
/dev/mapper/vg_mysql0121366-LogVol01  .0G  .1G  .0G  % /data
扩展lv
[root@Mysql01-- ~]# lvextend -L +19G /dev/mapper/vg_mysql0121366-LogVol01
  Extending logical volume LogVol01 to 27.00 GiB
  Logical volume LogVol01 successfully resized
[root@Mysql01-- ~]# df -h
Filesystem                            Size  Used Avail Use% Mounted on
/dev/mapper/vg_mysql0121366-LogVol02  .7G  .6G  .8G  % /
tmpfs                                 495M       495M   % /dev/shm
/dev/sda1                             194M   29M  155M  % /boot
/dev/mapper/vg_mysql0121366-LogVol01  .0G  .1G  .0G  % /data
若不是xfs我们可以用resize2fs，这里报错了
[root@Mysql01-- ~]# resize2fs -f /dev/mapper/vg_mysql0121366-LogVol01
resize2fs 1.41. (-May-)
resize2fs: Bad magic number in super-block while trying to open /dev/mapper/vg_mysql0121366-LogVol01
Couldn't find valid filesystem superblock.
[root@Mysql01-- ~]# xfs_growfs /dev/mapper/vg_mysql0121366-LogVol01
meta-data=/dev/mapper/vg_mysql0121366-LogVol01 isize=    agcount=, agsize= blks
         =                       sectsz=   attr=, projid32bit=
data     =                       bsize=   blocks=, imaxpct=
         =                       sunit=      swidth= blks
naming   =version               bsize=   ascii-ci=
log      =internal               bsize=   blocks=, version=
         =                       sectsz=   sunit= blks, lazy-count=
realtime =none                   extsz=   blocks=, rtextents=
data blocks changed from  to
[root@Mysql01-- ~]# df -h
Filesystem                            Size  Used Avail Use% Mounted on
/dev/mapper/vg_mysql0121366-LogVol02  .7G  .6G  .8G  % /
tmpfs                                 495M       495M   % /dev/shm
/dev/sda1                             194M   29M  155M  % /boot
/dev/mapper/vg_mysql0121366-LogVol01   27G  .1G   24G  % /data