LVM：重复的 VG 名称 VolGroup00

Question

我在显示重复 VG 名称的服务器上。如何重命名这些 VolGroup 之一以消除这种冲突？

[root@dev-server dev]# lvs
  WARNING: Duplicate VG name VolGroup00: zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  LV       VG         Attr   LSize   Origin Snap%  Move Log Copy%  Convert
  LogVol00 VolGroup00 -wi-ao  30.00G
  LogVol01 VolGroup00 -wi-ao 127.91G
  backup   VolGroup00 -wi-ao 300.00G
  rman     VolGroup00 -wi-ao 300.00G
[root@dev-server dev]# pvs
  WARNING: Duplicate VG name VolGroup00: zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  PV                  VG         Fmt  Attr PSize   PFree
  /dev/cciss/c0d0p2   VolGroup00 lvm2 a--    1.64T 918.62G
  /dev/cciss/c0d1p1   VolGroup00 lvm2 a--    3.27T   3.27T
  /dev/mpath/mpath0p2 VolGroup00 lvm2 a--  405.88G      0

 vgdisplay
  WARNING: Duplicate VG name VolGroup00: zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
  --- Volume group ---
  VG Name               VolGroup00
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               0
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               405.88 GB
  PE Size               32.00 MB
  Total PE              12988
  Alloc PE / Size       12988 / 405.88 GB
  Free  PE / Size       0 / 0
  VG UUID               ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc

  --- Volume group ---
  VG Name               VolGroup00
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  9
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                4
  Open LV               4
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               4.91 TB
  PE Size               32.00 MB
  Total PE              160955
  Alloc PE / Size       24253 / 757.91 GB
  Free  PE / Size       136702 / 4.17 TB
  VG UUID               zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87

我快速尝试重命名 VolGroup（可能做错了……）：

[root@dev-server dev]# vgrename /dev/cciss/c0d1 /dev/VolGroup02
      WARNING: Duplicate VG name VolGroup00: zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
      WARNING: Duplicate VG name VolGroup00: Existing zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 (created here) takes precedence over ifDUDd-ePmZ-Er7H-xwst-70dY-hB3M-6YDNZc
      Volume group name cciss/c0d1 has invalid characters
    [root@dev-server dev]#

的输出df -h：

Filesystem            Size  Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00
                       30G   17G   12G  59% / /dev/cciss/c0d0p1      99M   30M   65M  32% /boot tmpfs                  63G     0   63G   0% /dev/shm /dev/mapper/VolGroup00-rman
                      296G  8.9G  272G   4% /rman/11g /dev/mapper/VolGroup00-backup
                      296G   34G  248G  12% /backup

Answer 1

从手册页： -

"vgrename Zvlifi-Ep3t-e0Ng-U42h-o0ye-KHu1-nl7Ns4 VolGroup00_tmp"
   changes  the name of the Volume Group with UUID Zvlifi-Ep3t-e0Ng-U42h-o0ye-KHu1-nl7Ns4 to "VolGroup00_tmp".

...所以对于您的情况：-

vgrename zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87 newvolgroupname

...将 ID 为zOuHvA-QTBR-wNPs-3GIQ-b2zQ-yOeH-2fBS87的卷组重命名为newvolgroupname。