C++博客-cfrolifehttp://www.cppblog.com/cfrolife/zh-cnSat, 04 Apr 2026 05:38:06 GMTSat, 04 Apr 2026 05:38:06 GMT60[PowerVM] 利vios给微分区扩容http://www.cppblog.com/cfrolife/archive/2011/04/19/144591.htmlCforLifeCforLifeTue, 19 Apr 2011 14:44:00 GMThttp://www.cppblog.com/cfrolife/archive/2011/04/19/144591.htmlhttp://www.cppblog.com/cfrolife/comments/144591.htmlhttp://www.cppblog.com/cfrolife/archive/2011/04/19/144591.html#Feedback0http://www.cppblog.com/cfrolife/comments/commentRss/144591.htmlhttp://www.cppblog.com/cfrolife/services/trackbacks/144591.html前言：

一个P550小型机，两个300G硬盘，hdisk0和hdisk1，利用PowerVM技术建立三台虚拟机，AIX1独占1个300G硬盘hdisk1，hdisk0使用vios建立成一个rootvg，AIX2和Linux for power分别使用rootvg两个100G的LV，日常使用中AIX2空间不足，需要给AIX2扩容。下面将使用VIOS、AIX2作为前缀说明执行的环境。

VIOS：$oem_setup_env
VIOS：#lsvg
rootvg
VIOS：#:lsvg -l rootvg                                             //本处忽略了其他没关的显示信息
LV NAME             TYPE       LPs     PPs     PVs  LV STATE      MOUNT POINT
aix2                jfs2       200     200     1    open/syncd    N/A
redhat              jfs2       200     200     1    open/syncd    N/A
VIOS：#exit
VIOS：$lsmap -all                                            //本处忽略了其他没关的显示信息
SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost0          U8204.E8A.0628AD4-V1-C21                     0x00000002

VTD                   aix1_rootvg
Status                Available
LUN                   0x8100000000000000
Backing device        hdisk1
Physloc               U78A0.001.DNWH1L3-P2-D6

VTD                   cd
Status                Available
LUN                   0x8200000000000000
Backing device        cd0
Physloc               U78A0.001.DNWH1L3-P2-D2

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost1          U8204.E8A.0628AD4-V1-C22                     0x00000003

VTD                   aix2rootvg
Status                Available
LUN                   0x8100000000000000
Backing device        aix2
Physloc                

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost2          U8204.E8A.0628AD4-V1-C23                     0x00000004

VTD                   redhatvg
Status                Available
LUN                   0x8100000000000000
Backing device        redhat
Physloc                

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost3          U8204.E8A.0628AD4-V1-C24                     0x00000000

VTD                   NO VIRTUAL TARGET DEVICE FOUND

AIX2：# lspv
hdisk0          00c28ad458c8499d                    rootvg          active
AIX2：# lspv hdisk0
PHYSICAL VOLUME:    hdisk0                   VOLUME GROUP:     rootvg
PV IDENTIFIER:      00c28ad458c8499d VG IDENTIFIER     00c28ad400004c000000012d58c8560d
PV STATE:           active                                     
STALE PARTITIONS:   0                        ALLOCATABLE:      yes
PP SIZE:            128 megabyte(s)          LOGICAL VOLUMES:  15
TOTAL PPs:          799 (102272 megabytes)   VG DESCRIPTORS:   2
FREE PPs:           24 (3072 megabytes)      HOT SPARE:        no
USED PPs:           775 (99200 megabytes)    MAX REQUEST:      256 kilobytes
FREE DISTRIBUTION:  08..00..00..00..16                         
USED DISTRIBUTION:  152..160..159..160..144          

AIX2：# lsvg
rootvg
AIX2：# lsvg rootvg
VOLUME GROUP:       rootvg                   VG IDENTIFIER:  00c28ad400004c000000012d58c8560d
VG STATE:           active                   PP SIZE:        128 megabyte(s)
VG PERMISSION:      read/write               TOTAL PPs:      799 (102272 megabytes)
MAX LVs:            256                      FREE PPs:       24 (3072 megabytes)
LVs:                15                       USED PPs:       775 (99200 megabytes)
OPEN LVs:           14                       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 
可见AIX2只挂载了一个分区。
下面利用vios创建一个给AIX2使用的vg

VIOS：#mklv -y aix2datavg -t jfs2 rootvg 50G                                    //命令解释：在rootvg创建一个50G名为aix2datavg的jfs2格式的lv
aix2datavg
lv创建完毕，下面将lv映射给AIX2

VIOS：$mkvdev -vdev aix2datavg -vadapter vhost1                     //命令解释：创建一个虚拟设备，并映射给vhost1(即AIX2,由lsmap命令知道)，可以加-dev参数为新虚拟设备命名
vtscsi0 Available
由于没指定虚拟设备名称，此处系统默认分配了一个vtscsi0

执行lsmap查看是否已经映射成功。
VIOS：$lsmap -all
SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost0          U8204.E8A.0628AD4-V1-C21                     0x00000002

VTD                   aix1_rootvg
Status                Available
LUN                   0x8100000000000000
Backing device        hdisk1
Physloc               U78A0.001.DNWH1L3-P2-D6

VTD                   cd
Status                Available
LUN                   0x8200000000000000
Backing device        cd0
Physloc               U78A0.001.DNWH1L3-P2-D2

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost1          U8204.E8A.0628AD4-V1-C22                     0x00000003

VTD                   aix2rootvg
Status                Available
LUN                   0x8100000000000000
Backing device        aix2
Physloc                

VTD                   vtscsi0
Status                Available
LUN                   0x8200000000000000
Backing device        aix2datavg
Physloc                

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost2          U8204.E8A.0628AD4-V1-C23                     0x00000004

VTD                   redhatvg
Status                Available
LUN                   0x8100000000000000
Backing device        redhat
Physloc                

SVSA            Physloc                                      Client Partition ID
--------------- -------------------------------------------- ------------------
vhost3          U8204.E8A.0628AD4-V1-C24                     0x00000000

VTD                   NO VIRTUAL TARGET DEVICE FOUNDk可见
可见vhost1已经增加了vtscsi0

利用HMC管理平台重启AIX2
AIX2：# lspv
hdisk0          00c28ad458c8499d                    rootvg          active
hdisk1          none                                None            
可见AIX2已经成功添加了一个pv hdisk1，但是还没分配给创建vg

AIX2：# mkvg hdisk1
0516-1254 mkvg: Changing the PVID in the ODM. 
vg00

AIX2：# lspv
hdisk0          00c28ad458c8499d                    rootvg          active
hdisk1          00c28ad46d8b5773                    vg00            active
可见新的lv已经分配给新的vg00，并且状态是激活的。

至此，本次给AIX2扩容已经完成了一半。

因为IBM PowerVM先进的虚拟化技术，实际应用中可以实现在线扩容。本次虽然扩容了，但是重启了AIX2，只能算完成一半。在线扩容还没掌握好，下次再实践。

CforLife 2011-04-19 22:44 发表评论
]]>vm Linux扩容时新建分区报错No free sectors availablehttp://www.cppblog.com/cfrolife/archive/2011/04/13/144082.htmlCforLifeCforLifeTue, 12 Apr 2011 17:45:00 GMThttp://www.cppblog.com/cfrolife/archive/2011/04/13/144082.htmlhttp://www.cppblog.com/cfrolife/comments/144082.htmlhttp://www.cppblog.com/cfrolife/archive/2011/04/13/144082.html#Feedback0http://www.cppblog.com/cfrolife/comments/commentRss/144082.htmlhttp://www.cppblog.com/cfrolife/services/trackbacks/144082.htmlvm Linux扩容  阅读全文

CforLife 2011-04-13 01:45 发表评论
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