AIX下从EMC存储扩展卷组（VG）的操作

AIX提供了灵活的存储管理机制，一般是在存储环境下做好Raid，并划分好LUN供主机使用，很多使用小型机的生产系统除了本地硬盘，还要使用盘柜来存储数据，那么AIX下如何使用盘柜的磁盘空间来扩展卷组（VG）呢，下面以EMC存储为例进行操作：

1、登录到EMC提供的存储管理软件navisphere。

2、在navisphere的SP下找到要分配的LUN，右键Add to Storage Group，选择要分配给的目标主机。已有的Storage Group通过navisphere也可查看。

3、在主机端以root用户执行emc_cfgmgr.sh脚本：

p5b2@/home/oracle>cat emc_cfgmgr.sh
#####################################################################
## emc_cfgmgr ##
## Directed Configuration for EMC storage devices. ##
## Copyright (c) 1999,2000,2002 EMC Corporation ##
## This utility supports Symmetrix Timefinder devices, Symmetrix ##
## Timefinder devices under PowerPath 2.x,3.x and CLARiiON devices ##
## under PowerPath 3.x. ##
## krichards V2.0.0.2 06/12/02 ##
#####################################################################
LANG=C
for PathType in scsi fchan fcs
do
for PowerPath in `lsdev -Cc adapter -Fname | grep ${PathType}`
do
cfgmgr -vl ${PowerPath}

if [ -f /usr/lpp/Symmetrix/bin/mkbcv ]
then
/usr/lpp/Symmetrix/bin/mkbcv -a
fi
done
done

if [ -f /etc/methods/scan_for_scsi3clariion ]
then
/etc/methods/scan_for_scsi3clariion
fi

p5b2@/home/oracle#./emc_cfgmgr.sh
----------------
Attempting to configure device 'sisscsia0'
Time: 0 LEDS: 0x2522
Invoking /usr/lib/methods/cfgsisioa -l sisscsia0
Number of running methods: 1
----------------
Completed method for: sisscsia0, Elapsed time = 0
Return code = 0
***** stdout *****
scsi0 scsi1
*** no stderr ****
----------------
Time: 0 LEDS: 0x539
Number of running methods: 0
----------------
Attempting to configure device 'scsi0'
Time: 0 LEDS: 0x2522
Invoking /usr/lib/methods/cfgsisphysb -l scsi0
Number of running methods: 1
----------------
Attempting to configure device 'scsi1'
Time: 0 LEDS: 0x2522
Invoking /usr/lib/methods/cfgsisphysb -l scsi1
Number of running methods: 2
----------------
Completed method for: scsi0, Elapsed time = 1
Return code = 0
***** stdout *****
ses0
*** no stderr ****
----------------
Time: 1 LEDS: 0x2522 for scsi1
Number of running methods: 1
----------------
Completed method for: scsi1, Elapsed time = 1
Return code = 0
***** stdout *****
ses1
*** no stderr ****
----------------
Time: 1 LEDS: 0x539
Number of running methods: 0
----------------
Attempting to configure device 'ses0'
Time: 1 LEDS: 0x807
Invoking /usr/lib/methods/cfgscses -l ses0
Number of running methods: 1
----------------
Completed method for: ses0, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 1 LEDS: 0x539
Number of running methods: 0
----------------
Attempting to configure device 'ses1'
Time: 1 LEDS: 0x807
Invoking /usr/lib/methods/cfgscses -l ses1
Number of running methods: 1
----------------
Completed method for: ses1, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 1 LEDS: 0x539
Number of running methods: 0
----------------
Calling savebase
Return code = 0
*** no stdout ****
*** no stderr ****
Configuration time: 1 seconds
----------------
Attempting to configure device 'fcs0'
Time: 0 LEDS: 0x2601
Invoking /usr/lib/methods/cfgefc -l fcs0
Number of running methods: 1
----------------
Completed method for: fcs0, Elapsed time = 0
Return code = 0
***** stdout *****
fscsi0
*** no stderr ****
----------------
Time: 0 LEDS: 0x539
Number of running methods: 0
----------------
Attempting to configure device 'fscsi0'
Time: 0 LEDS: 0x569
Invoking /usr/lib/methods/cfgefscsi -l fscsi0
Number of running methods: 1
----------------
Completed method for: fscsi0, Elapsed time = 0
Return code = 0
***** stdout *****
hdisk10 hdisk11 hdisk12 hdisk13
*** no stderr ****
----------------
Time: 0 LEDS: 0x539
Number of running methods: 0
----------------
Attempting to configure device 'hdisk10'
Time: 0 LEDS: 0xff5
Invoking /usr/lib/methods/cfgscsidisk -l hdisk10
Number of running methods: 1
----------------
Attempting to configure device 'hdisk11'
Time: 0 LEDS: 0xff5
Invoking /usr/lib/methods/cfgscsidisk -l hdisk11
Number of running methods: 2
----------------
Attempting to configure device 'hdisk12'
Time: 0 LEDS: 0xff5
Invoking /usr/lib/methods/cfgscsidisk -l hdisk12
Number of running methods: 3
----------------
Attempting to configure device 'hdisk13'
Time: 0 LEDS: 0xff5
Invoking /usr/lib/methods/cfgscsidisk -l hdisk13
Number of running methods: 4
----------------
Completed method for: hdisk13, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 0 LEDS: 0xff5 for hdisk12
Number of running methods: 3
----------------
Completed method for: hdisk10, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 0 LEDS: 0xff5 for hdisk12
Number of running methods: 2
----------------
Completed method for: hdisk12, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 0 LEDS: 0xff5 for hdisk11
Number of running methods: 1
----------------
Completed method for: hdisk11, Elapsed time = 0
Return code = 0
*** no stdout ****
*** no stderr ****
----------------
Time: 0 LEDS: 0x539
Number of running methods: 0
----------------
Calling savebase
Return code = 0
*** no stdout ****
*** no stderr ****
Configuration time: 1 seconds

4、执行lsdev –Ccdisk，看有没有新加一些hdisk盘，可执行powermt display dev=all查看相关信息

p5b2@/home/oracle#lsdev -Ccdisk
hdisk0 Available 06-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 06-08-00-9,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk3 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk4 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk5 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk6 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk7 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk8 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk9 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk10 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk11 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk12 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk13 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdiskpower0 Available 08-08-01 PowerPath Device
hdiskpower1 Available 08-08-01 PowerPath Device

p5b2@/home/oracle#powermt display dev=all
Pseudo name=hdiskpower0
CLARiiON ID=CK200040600416 [P5B-PART2]
Logical device ID=600601606FF019008188624DEE4BDC11 [LUN 8]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
=====================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
=====================================================
0 fscsi0 hdisk2 SP A0 active alive 0 0
0 fscsi0 hdisk4 SP B1 active alive 0 0
0 fscsi0 hdisk6 SP A2 active alive 0 0
0 fscsi0 hdisk8 SP B3 active alive 0 0

......

Pseudo name=hdiskpower2
CLARiiON ID=CK200040600416 [P5B-PART2]
Logical device ID=600601606FF019008388624DEE4BDC11 [LUN 10]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
=====================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
=====================================================
0 fscsi0 hdisk10 SP A0 active alive 0 0
0 fscsi0 hdisk11 SP B1 active alive 0 0
0 fscsi0 hdisk12 SP A2 active alive 0 0
0 fscsi0 hdisk13 SP B3 active alive 0 0

5、执行powermt config，再看看是否增加了新的hdiskpower

p5b2@/home/oracle#powermt config

p5b2@/home/oracle#lsdev -Ccdisk
hdisk0 Available 06-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 06-08-00-9,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk3 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk4 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk5 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk6 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk7 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk8 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk9 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk10 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk11 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk12 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdisk13 Available 08-08-01 EMC CLARiiON FCP RAID 5 Disk
hdiskpower0 Available 08-08-01 PowerPath Device
hdiskpower1 Available 08-08-01 PowerPath Device
hdiskpower2 Available 08-08-01 PowerPath Device

6、执行lspv查看

p5b2@/home/oracle#lspv
hdisk0 00c1e9ff3a3ed890 rootvg active
hdisk1 00c1e9ff410da8de rootvg active
hdisk2 none None
hdisk3 none None
hdisk4 none None
hdisk5 none None
hdisk6 none None
hdisk7 none None
hdisk8 none None
hdisk9 none None
hdiskpower0 00c1e9ff530bc501 dev2vg active
hdiskpower1 00c1e9ff5316cb73 dev2vg active
hdisk10 none None
hdisk11 none None
hdisk12 none None
hdisk13 none None
hdiskpower2 none None

7、执行chdev -l hdiskpower2 -a pv=yes ，先附上pvid

p5b2@/home/oracle#chdev -l hdiskpower2 -a pv=yes
hdiskpower2 changed
p5b2@/home/oracle#lspv
......
hdiskpower2 00c1e9ff48a7b301 None

8、执行extendvg dev2vg hdiskpower2 ，把新加的hdiskpower2扩展到dev2vg卷组中：

p5b2@/home/oracle#extendvg dev2vg hdiskpower2
p5b2@/home/oracle#lsvg dev2vg
VOLUME GROUP: dev2vg VG IDENTIFIER: 00c1e9ff00004c0000000116a31806e2
VG STATE: active PP SIZE: 128 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 1733 (221824 megabytes)
MAX LVs: 512 FREE PPs: 572 (73216 megabytes)
LVs: 2 USED PPs: 1161 (148608 megabytes)
OPEN LVs: 2 QUORUM: 2
TOTAL PVs: 3 VG DESCRIPTORS: 3
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 3 AUTO ON: yes
MAX PPs per VG: 130048
MAX PPs per PV: 1016 MAX PVs: 128
LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable

至此完成了扩展卷组的操作。