lvextend:新大小(3071999 个范围)与现有大小(3071999 个范围)匹配

lvextend:新大小(3071999 个范围)与现有大小(3071999 个范围)匹配

我在具有 1 个分区的 12TB 设备上配置了 LVM。然后,我尝试将 LVM 扩展到具有 1 个分区的第二个 12TB 设备上。vgextend 工作正常,但 lvextend 看不到第二个设备上的空间。

以下是我对第二个设备的分区方式:

# parted /dev/mapper/3600a09803830304d2f2b456f61565846
GNU Parted 2.1
Using /dev/mapper/3600a09803830304d2f2b456f61565846
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt
(parted) mkpart primary xfs 0% 100%
(parted) set 1 lvm on
(parted) print
Model: Linux device-mapper (multipath) (dm)
Disk /dev/mapper/3600a09803830304d2f2b456f61565846: 12.9TB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  12.9TB  12.9TB               primary  lvm

(parted) quit
Information: You may need to update /etc/fstab.

扩展卷组有效:

# vgextend datalake /dev/mapper/3600a09803830304d2f2b456f61565846p1
  Physical volume "/dev/mapper/3600a09803830304d2f2b456f61565846p1" successfully created
  Volume group "datalake" successfully extended

扩展逻辑卷不起作用:

# lvextend -l100%FREE /dev/datalake/volume
  New size (3071999 extents) matches existing size (3071999 extents)
  Run `lvextend --help' for more information.

我之后尝试运行 xfs_growfs,但文件系统仍然保持相同的大小:

# xfs_growfs /datalake
meta-data=/dev/mapper/datalake-volume isize=256    agcount=32, agsize=98303967 blks
         =                       sectsz=512   attr=2, projid32bit=0
data     =                       bsize=4096   blocks=3145726944, imaxpct=5
         =                       sunit=1      swidth=16 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=521728, version=2
         =                       sectsz=512   sunit=1 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

它应该看到 24T 的空间,但是它只看到 12T:

# df -h /datalake
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/datalake-volume
                       12T   34M   12T   1% /datalake

该卷组的 pvs 输出:

# pvs
  PV                                                                           VG             Fmt  Attr PSize   PFree
  /dev/mapper/3600a09803830304d2f2b456f61565846p1                              datalake       lvm2 a--   11.72t  11.72t
  /dev/mapper/3600a09803830304e2f5d464474527471p1                              datalake       lvm2 a--   11.72t      0

该卷组的 vgs 输出:

# vgs
  VG             #PV #LV #SN Attr   VSize  VFree
  datalake         2   1   0 wz--n- 23.44t  11.72t

该卷组的 lvs 输出:

  LV     VG             Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  volume datalake       -wi-ao---- 11.72t

如何将逻辑卷扩展到完整的 24TB?

答案1

当您使用lvextend或 时lvresize,您需要使用+或 指定为 lvm 卷分配的更多空间或扩展

例子:

lvextend -l +100%FREE /dev/datalake/volume

或无+

lvextend -l <total number of extends to catch up> /dev/datalake/volume

我更喜欢使用第一种方法,因为这样我不需要知道已分配的扩展和新的扩展的数量。

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