HPUX 11.31在线扩展根文件系统onlineJFS

(HP-UX crmdb1 B.11.31 U ia64 0067477400 unlimited-user license)

pvmove命令使用方法如下：

Usage: pvmove 

        [-A Autobackup] 

        [-n LogicalVolumeName] 

        SourcePhysicalVolumePath [DestinationPhysicalVolumePath ... | DestinationPhysicalVolumeGroupName ...]

pvmove 

        [-A Autobackup] 

        SourcePhysicalVolumePath[:0] [DestinationPhysicalVolumePath ... | DestinationPhysicalVolumeGroupName ...]

More arguments required.

由于根卷采用严格分配策略，要扩展根逻辑卷，首先要移动或删除lvol4，腾出连续磁盘空间才可扩展

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方案一

1、加一块新盘到vg00中

# vi /tmp/partitionfile

    3

    EFI 500MB

    HPUX 100%

    HPSP 400MB

idisk -wf /tmp/partitionfile /dev/rdisk/disk4

insf -e -C disk

pvcreate -B /dev/rdisk/disk4_p2

mkboot -e -l /dev/rdisk/disk4_p2 

vgextend /dev/vg00 /dev/disk/disk4_p2 

2、从指定盘上拆除lvol4的镜像

lvreduce -m 0 /dev/vg00/lvol4 /dev/disk/disk3_p2

3、使用pvmove命令移动lvol4至新加磁盘

pvmove -n /dev/vg00/lvol4 /dev/disk/disk9_p2 /dev/disk/disk4_p2

4、扩展根逻辑卷

lvextend -L +2G /dev/vg00/lvol3

5、使用onlineJFS扩展根文件系统

fsadm -F vxfs -b 2048000 /

6、恢复lvol4至原有磁盘

pvmove -n /dev/vg00/lvol4 /dev/disk/disk4_p2 /dev/disk/disk9_p2 

lvextend -m 1 -s /dev/vg00/lvol4 /dev/disk/disk3_p2

7、同步镜像

vgsync vg00

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方案二(vg00剩余空间必须大于lvol4大小）

1、从指定盘上拆除lvol3和lvol4的镜像

lvreduce -m 0 /dev/vg00/lvol4 /dev/disk/disk3_p2

lvreduce -m 0 /dev/vg00/lvol3 /dev/disk/disk9_p2

2、扩展根lv

lvextend -L +2G -n lvol3 vg00 /dev/disk/disk3_p2

3、使用onlineJFS扩展根文件系统

fsadm -F vxfs -b 2048000 /

4、迁移lvol4

pvmove -n /dev/vg00/lvol4 /dev/disk/disk9_p2 /dev/disk/disk3_p2

5、对lvol3和lvol4做镜像

lvextend -m 1 -s /dev/vg00/lvol3 /dev/disk/disk9_p2

lvextend -m 1 -s /dev/vg00/lvol4 /dev/disk/disk9_p2

6、同步镜像

vgsync vg00