首页 > 代码库 > 使用cply移动jfs/jfs2文件系统从一个卷组到另一个卷组中
使用cply移动jfs/jfs2文件系统从一个卷组到另一个卷组中
移动jfs/jfs2文件系统从一个卷组到另一个卷组中的目的是是当一个卷组中的空间越来越少，而另外一个卷组中的空间还比较有富余，我们可以把空间紧张中的卷组移动到空间较多的卷组中；
root@testdb:/# uname -ML
IBM,9131-52A 2 aix7001
root@testdb:/# lspv
hdisk0 0007388ca583b447 rootvg active
hdisk1 0007388ca7a889a1 altinst_rootvg
hdisk2 000b0856ec68f5de testvg active
hdisk3 000b0856eede6bdd None
root@testdb:/# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A
hd6 paging 6 6 1 open/syncd N/A
hd8 jfs2log 1 1 1 open/syncd N/A
hd4 jfs2 82 82 1 open/syncd /
hd2 jfs2 9 9 1 open/syncd /usr
hd9var jfs2 50 50 1 open/syncd /var
hd3 jfs2 5 5 1 open/syncd /tmp
hd1 jfs2 37 37 1 open/syncd /home
hd10opt jfs2 3 3 1 open/syncd /opt
hd11admin jfs2 1 1 1 open/syncd /admin
lg_dumplv sysdump 4 4 1 open/syncd N/A
livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump
root@testdb:/# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
在rootvg 上创建一个jfs2文件系统，移动其到testvg中；
操作过程如下：
root@testdb:/# lsvg rootvg
VOLUME GROUP: rootvg VG IDENTIFIER: 000b08560000d70000000147b7501511
VG STATE: active PP SIZE: 256 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 546 (139776 megabytes)
MAX LVs: 256 FREE PPs: 346 (88576 megabytes)
LVs: 12 USED PPs: 200 (51200 megabytes)
OPEN LVs: 11 QUORUM: 2 (Enabled)
TOTAL PVs: 1 VG DESCRIPTORS: 2
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 1 AUTO ON: yes
MAX PPs per VG: 32512
MAX PPs per PV: 1016 MAX PVs: 32
LTG size (Dynamic): 256 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
PV RESTRICTION: none INFINITE RETRY: no
root@testdb:/# smit lv
root@testdb:/# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A
hd6 paging 6 6 1 open/syncd N/A
hd8 jfs2log 1 1 1 open/syncd N/A
hd4 jfs2 82 82 1 open/syncd /
hd2 jfs2 9 9 1 open/syncd /usr
hd9var jfs2 50 50 1 open/syncd /var
hd3 jfs2 5 5 1 open/syncd /tmp
hd1 jfs2 37 37 1 open/syncd /home
hd10opt jfs2 3 3 1 open/syncd /opt
hd11admin jfs2 1 1 1 open/syncd /admin
lg_dumplv sysdump 4 4 1 open/syncd N/A
livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump
testlv jfs2 4 4 1 closed/syncd N/A
Add an Enhanced Journaled File System
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
* LOGICAL VOLUME name testlv
+
* MOUNT POINT [/test]
Mount AUTOMATICALLY at system restart? yes
+
PERMISSIONS read/write
+
Mount OPTIONS []
+
Block Size (bytes) 4096 +
Logical Volume for Log +
Inline Log size (MBytes) [] #
Extended Attribute Format +
ENABLE Quota Management? no +
Enable EFS? no +
Allow internal snapshots? no +
Mount GROUP []
挂载文件系统
root@testdb:/# mount
node mounted mounted over vfs date options
-------- --------------- --------------- ------ ------------ ---------------
/dev/hd4 / jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd2 /usr jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd9var /var jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd3 /tmp jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd1 /home jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/hd11admin /admin jfs2 Sep 01 21:44 rw,log=/dev/hd8
/proc /proc procfs Sep 01 21:44 rw
/dev/hd10opt /opt jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/livedump /var/adm/ras/livedump jfs2 Sep 01 21:44 rw,log=/dev/hd8
root@testdb:/# mount /test
root@testdb:/# mount
node mounted mounted over vfs date options
-------- --------------- --------------- ------ ------------ ---------------
/dev/hd4 / jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd2 /usr jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd9var /var jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd3 /tmp jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd1 /home jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/hd11admin /admin jfs2 Sep 01 21:44 rw,log=/dev/hd8
/proc /proc procfs Sep 01 21:44 rw
/dev/hd10opt /opt jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/livedump /var/adm/ras/livedump jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/testlv /test jfs2 Sep 02 15:15 rw,log=/dev/hd8
在创建的文件系统上创建文件
root@testdb:/# cd /test
root@testdb:/test# ls -al
total 8
drwxr-xr-x 3 root system 256 Sep 02 15:14 .
drwxr-xr-x 28 root system 4096 Sep 02 15:14 ..
drwxr-xr-x 2 root system 256 Sep 02 15:14 lost+found
root@testdb:/test#
root@testdb:/test#
root@testdb:/test# mkdir xiaowang
root@testdb:/test# touch xiaowangfile
root@testdb:/test# ls -al
total 8
drwxr-xr-x 4 root system 256 Sep 02 15:16 .
drwxr-xr-x 28 root system 4096 Sep 02 15:14 ..
drwxr-xr-x 2 root system 256 Sep 02 15:14 lost+found
drwxr-xr-x 2 root system 256 Sep 02 15:16 xiaowang
-rw-r--r-- 1 root system 0 Sep 02 15:16 xiaowangfile
移动文件系统到新的卷组中
1、首先要卸载要迁移的文件系统/test
root@testdb:/# umount /test
root@testdb:/# mount
node mounted mounted over vfs date options
-------- --------------- --------------- ------ ------------ ---------------
/dev/hd4 / jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd2 /usr jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd9var /var jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd3 /tmp jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd1 /home jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/hd11admin /admin jfs2 Sep 01 21:44 rw,log=/dev/hd8
/proc /proc procfs Sep 01 21:44 rw
/dev/hd10opt /opt jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/livedump /var/adm/ras/livedump jfs2 Sep 01 21:44 rw,log=/dev/hd8
2、使用cplv 命令拷贝源逻辑卷到目的的卷组testvg中
root@testdb:/# cplv -v testvg -y testlvcp testlv
cplv [ -v VolumeGroup ] [ -y NewLogicalVolume | -Y Prefix ] SourceLogicalVolume
cplv: Logical volume testlv successfully copied to testlvcp .
root@testdb:/# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
testlvcp jfs2 8 8 1 closed/syncd N/A
3、在testvg上创建日志设备并格式化
root@testdb:/# mklv -t jfs2log testvg 1
loglv00
root@testdb:/# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
testlvcp jfs2 8 8 1 closed/syncd N/A
loglv00 jfs2log 1 1 1 closed/syncd N/A
root@testdb:/# logform /dev/loglv00
logform: destroy /dev/rloglv00 (y)?y
root@testdb:/# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
testlvcp jfs2 8 8 1 closed/syncd N/A
loglv00 jfs2log 1 1 1 closed/syncd N/A
4、使用chfs 命令改变文件系统以引用新的卷组和新的逻辑卷中的日志设备
root@testdb:/# chfs -a dev=/dev/testlvcp -a log=/dev/loglv00 /test
root@testdb:/#
5、运行fsck 确保文件系统的完整性
root@testdb:/# fsck
The current volume is: /dev/hd1
File system is currently mounted.
Primary superblock is valid.
fsck: Performing read-only processing does not produce dependable results.
*** Phase 1 - Initial inode scan
*** Phase 2 - Process remaining directories
*** Phase 3 - Process remaining files
*** Phase 4 - Check inode allocation map
*** Phase 5 - Check block allocation map
File system is currently mounted.
fsck: Performing read-only processing does not produce dependable results.
The current volume is: /dev/hd10opt
File system is currently mounted.
Primary superblock is valid.
fsck: Performing read-only processing does not produce dependable results.
*** Phase 1 - Initial inode scan
*** Phase 2 - Process remaining directories
*** Phase 3 - Process remaining files
*** Phase 4 - Check inode allocation map
*** Phase 5 - Check block allocation map
File system is currently mounted.
fsck: Performing read-only processing does not produce dependable results.
6、挂载文件系统
root@testdb:/# mount /test
root@testdb:/# mount
node mounted mounted over vfs date options
-------- --------------- --------------- ------ ------------ ---------------
/dev/hd4 / jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd2 /usr jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd9var /var jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd3 /tmp jfs2 Sep 01 21:43 rw,log=/dev/hd8
/dev/hd1 /home jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/hd11admin /admin jfs2 Sep 01 21:44 rw,log=/dev/hd8
/proc /proc procfs Sep 01 21:44 rw
/dev/hd10opt /opt jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/livedump /var/adm/ras/livedump jfs2 Sep 01 21:44 rw,log=/dev/hd8
/dev/testlvcp /test jfs2 Sep 02 15:35 rw,log=/dev/loglv00
root@testdb:/# cd /test
root@testdb:/test# ls -al
total 8
drwxr-xr-x 4 root system 256 Sep 02 15:16 .
drwxr-xr-x 28 root system 4096 Sep 02 15:14 ..
drwxr-xr-x 2 root system 256 Sep 02 15:14 lost+found
drwxr-xr-x 2 root system 256 Sep 02 15:16 xiaowang
-rw-r--r-- 1 root system 0 Sep 02 15:16 xiaowangfile
7、删除原来的逻辑卷源
root@testdb:/test# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A
hd6 paging 6 6 1 open/syncd N/A
hd8 jfs2log 1 1 1 open/syncd N/A
hd4 jfs2 82 82 1 open/syncd /
hd2 jfs2 9 9 1 open/syncd /usr
hd9var jfs2 50 50 1 open/syncd /var
hd3 jfs2 5 5 1 open/syncd /tmp
hd1 jfs2 37 37 1 open/syncd /home
hd10opt jfs2 3 3 1 open/syncd /opt
hd11admin jfs2 1 1 1 open/syncd /admin
lg_dumplv sysdump 4 4 1 open/syncd N/A
livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump
testlv jfs2 4 4 1 closed/syncd N/A
root@testdb:/test# rmlv testlv
Warning, all data contained on logical volume testlv will be destroyed.
rmlv: Do you wish to continue? y(es) n(o)? y
rmlv: Logical volume testlv is removed.
root@testdb:/test# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A
hd6 paging 6 6 1 open/syncd N/A
hd8 jfs2log 1 1 1 open/syncd N/A
hd4 jfs2 82 82 1 open/syncd /
hd2 jfs2 9 9 1 open/syncd /usr
hd9var jfs2 50 50 1 open/syncd /var
hd3 jfs2 5 5 1 open/syncd /tmp
hd1 jfs2 37 37 1 open/syncd /home
hd10opt jfs2 3 3 1 open/syncd /opt
hd11admin jfs2 1 1 1 open/syncd /admin
lg_dumplv sysdump 4 4 1 open/syncd N/A
livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump
需要注意
1、移动前要卸载源文件系统
2、在目的卷组上使用chfs命令创建日志设备以引用新的卷组；
使用cply移动jfs/jfs2文件系统从一个卷组到另一个卷组中