对rootvg进行克隆实验
实验的目的：
1、是把hdisk0 所在的rootvg 克隆到hdisk1，克隆完成后从hdisk1启动，观察系统的正确性，在通过设置从hdisk0启动，观察系统的正确性；
2、修改hdisk0 中的某个文件后，将启动设置为hdisk1启动，观察盘内有无修改的文件，说明克隆和镜像的不同
root@testdb:/# lspv
hdisk0 0007388ca583b447 rootvg active
hdisk1 0007388ca7a889a1 None
hdisk2 000b0856ec68f5de testvg active
hdisk3 000b0856eede6bdd testvg active
root@testdb:/# smit
Move cursor to desired item and press Enter.
[TOP]
Software Installation and Maintenance
Software License Management
Manage Editions
Devices
System Storage Management (Physical & Logical Storage)
Security & Users
Communications Applications and Services
Workload Partition Administration
Print Spooling
Advanced Accounting
Problem Determination
Manage the AIX Cryptographic Framework
Performance & Resource Scheduling
System Environments
Processes & Subsystems
Applications
Software Installation and Maintenance
Move cursor to desired item and press Enter.
Install and Update Software
List Software and Related Information
Software Maintenance and Utilities
Software Service Management
Relocatable Software Installation and Maintenance
Network Installation Management
EZ NIM (Easy NIM Tool)
System Workload Partition Software Maintenance
System Backup Manager
Alternate Disk Installation
EFIX Management
Thin Server Maintenance
Alternate Disk Installation
Move cursor to desired item and press Enter.
Install mksysb on an Alternate Disk
Clone the rootvg to an Alternate Disk
NIM Alternate Disk Migration
Clone the rootvg to an Alternate Disk
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[TOP] [Entry Fields]
* Target Disk(s) to install [hdisk1]
//克隆盘要是一个free的盘； +
Phase to execute all +
image.data file [] /
Exclude list [] /
Bundle to install [] +
-OR-
Fileset(s) to install []
Fix bundle to install []
-OR-
Fixes to install []
Directory or Device with images []
(required if filesets, bundles or fixes used)
installp Flags
COMMIT software updates? yes +
SAVE replaced files? no +
AUTOMATICALLY install requisite software? yes +
EXTEND file systems if space needed? yes +
OVERWRITE same or newer versions? no +
VERIFY install and check file sizes? no +
ACCEPT new license agreements? yes
on next reboot? yes
Command: OK stdout: yes stderr: no
Before command completion, additional instructions may appear below.
[TOP]
Calling mkszfile to create new /image.data file.
Checking disk sizes.
Creating cloned rootvg volume group and associated logical volumes.
Creating logical volume alt_hd5
Creating logical volume alt_hd6
Creating logical volume alt_hd8
Creating logical volume alt_hd4
Creating logical volume alt_hd2
Creating logical volume alt_hd9var
Creating logical volume alt_hd3
Creating logical volume alt_hd1
Creating logical volume alt_hd10opt
Creating logical volume alt_hd11admin
克隆完毕..........
root@testdb:/# lspv
hdisk0 0007388ca583b447 rootvg active
hdisk1 0007388ca7a889a1 altinst_rootvg
hdisk2 000b0856ec68f5de testvg active
hdisk3 000b0856eede6bdd testvg active
hdisk1 的标志altinst_rootvg
root@testdb:/# bootlist -m normal -o //完成后，启动盘变为克隆盘
hdisk1 blv=hd5
重启系统后如下
root@testdb:/# lspv
hdisk0 0007388ca583b447 old_rootvg
hdisk1 0007388ca7a889a1 rootvg active
hdisk2 000b0856ec68f5de testvg active
hdisk3 000b0856eede6bdd testvg active
hdisk0 变为了old_rootvg ，重新启动后由hdisk1引导磁盘。
root@testdb:/# lsvg -l rootvg //文件系统和挂载点均没有变化。
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
在克隆盘上创建新的文件
root@testdb:/# mkdir testkelong
root@testdb:/# cd testkelong
root@testdb:/testkelong# touch testfile
root@testdb:/testkelong# ls -l
total 0
-rw-r--r-- 1 root system 0 Sep 01 21:38 testfile
把启动顺序改为hdisk0
root@testdb:/testkelong# bootlist -m normal hdisk0
root@testdb:/testkelong#
root@testdb:/testkelong# bootlist -m normal -o
hdisk0 blv=hd5
重启系统后 看到系统盘上没有刚刚新建的文件夹 ；
root@testdb:/# ls -al |grep testkelong
克隆rootvg的可以作为日常升级前或作为备份的一种手段；