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最近的一次ASM diskgroup在线迁移记录

原创 Oracle 作者:oliseh 时间:2016-04-25 09:22:41 2 删除 编辑

目的:一套11.2.0.4 双节点的RAC当前使用的是阵列里的FC(Fibre channel)盘,运行一段时间后发现数据库比较空闲,所以打算将其迁移到同阵列的SATA盘上,以将FC盘预留给对IO要求更高的应用。

迁移方法:由ASM实现存储管理的数据库,使用ASM diskgroup在线迁移方式是再好不过的选择
挑战:难度虽然不大,但前一次做diskgroup在线迁移还是3年以前的事情,这次特意从头到尾将整个步骤整理如下,供参考

//////////////////
// 第一部分:新盘准备
//////////////////
1、shajx1主机上当前使用的dg及盘
ASMCMD> lsdg
State    Type    Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name
MOUNTED  EXTERN  N         512   4096  1048576    743632   350106                0          350106              0             N  AJXDG1/
MOUNTED  EXTERN  N         512   4096  1048576    743632   321451                0          321451              0             N  AJXDG2/
MOUNTED  EXTERN  N         512   4096  1048576      7500     7134                0            7134              0             N  SYSDG1/
MOUNTED  EXTERN  N         512   4096  1048576      7500     7103                0            7103              0             Y  SYSDG2/
MOUNTED  EXTERN  N         512   4096  1048576      7500     7403                0            7403              0             N  SYSDG3/
ASMCMD> lsdsk -G sysdg1
Path
/dev/rhdiskpower44
/dev/rhdiskpower45
ASMCMD> lsdsk -G sysdg2
Path
/dev/rhdiskpower46
/dev/rhdiskpower47
ASMCMD> lsdsk -G sysdg3
Path
/dev/rhdiskpower48
/dev/rhdiskpower49


2、shajx1主机上认到的新盘及大小如下:
/dev/rhdiskpower58     13FD 09E:0 05A:C8  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower59     1401 09E:0 06A:C7  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower60     1405 09E:0 05A:CA  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower61     1409 09E:0 06A:C9  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower62     140D 09E:0 05A:CC  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower63     1411 09E:0 06A:CB  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower64     1415 09E:0 06C:D0  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower65     1419 09E:0 05C:D1  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower66     141D 09E:0 06C:D2  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower67     1421 09E:0 05C:D3  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower68     1425 09E:0 06C:D4  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower69     1429 09E:0 06A:CD  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower70     142D 09E:0 05D:D6  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower71     1431 09E:0 06D:D5  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower72     1435 09E:0 05D:D8  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower73     1439 09E:0 06D:D7  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower74     143D 09E:0 05D:DA  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower75     1441 09E:0 06D:D9  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower76     1445 09E:0 05D:DC  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower77     1449 09E:0 06D:DB  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower78     144D 09E:0 06B:C0  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower79     1451 09E:0 05B:C1  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower80     1455 09E:0 06B:C2  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower81     1459 09E:0 05B:C3  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower82     145D 09E:0 06B:C4  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower83     1461 09E:0 06A:D6  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower84     1465 09E:0 05A:D5  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower85     1469 09E:0 06A:D8  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower86     146D 09E:0 05A:D7  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower87     1471 09E:0 06A:DA  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower88     1475 09E:0 05A:D9  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower89     1479 09E:0 06A:DC  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower90     147D 09E:0 05A:DB  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower91     1481 09E:0 05C:C0  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower92     1485 09E:0 06C:C1  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower93     1489 09E:0 05C:C2  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower94     148D 09E:0 06C:C3  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower95     1491 09E:0 05C:C4  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower96     1495 09E:0 06D:C6  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower97     1499 09E:0 05D:C5  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower98     149D 09E:0 06D:C8  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower99     14A1 09E:0 05D:C7  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower100    14A5 09E:0 06D:CA  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower101    14A9 09E:0 05D:C9  2-Way Mir     N/Grp'd  (M) RW   46478
/dev/rhdiskpower102    40DF 09E:0 10A:D18 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower103    40E0 09E:0 10C:D18 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower104    40E1 09E:0 09B:D18 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower105    40E2 09E:0 09D:D18 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower106    40E3 09E:0 09A:D19 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower107    40E4 09E:0 09C:D19 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower108    40DD 09E:0 09B:C1B 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower109    40DE 09E:0 10D:C1A 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower110    40D5 09E:0 08B:D1D 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower111    40D6 09E:0 08D:D1D 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower112    40D7 09E:0 10A:C1B 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower113    40D8 09E:0 09C:C1A 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower114    40D9 09E:0 10B:C1A 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower115    40DA 09E:0 09D:C19 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower116    40DB 09E:0 09A:C1C 2-Way Mir     N/Grp'd      RW     938
/dev/rhdiskpower117    40DC 09E:0 10C:C1B 2-Way Mir     N/Grp'd      RW     938


其中hdiskpower58~89用于数据文件,hdiskpower90~hdiskpower101保留用于archivelog文件系统,hdiskpower102~hdiskpower117用于新建OCR、vote盘所在DG


3、修改hdiskpower58~hdiskpower89、hdiskpower102~hdiskpower117的磁盘属性及属主,属性为crw-rw----,属主为grid.asmadmin,两个节点都要修改
shajx1、shajx2都要运行:
i=58
while [ $i -lt 90 ]
do
chown grid.asmadmin /dev/rhdiskpower$i
((i=i+1))
done


i=102
while [ $i -lt 118 ]
do
chown grid.asmadmin /dev/rhdiskpower$i
((i=i+1))
done


4、登陆ASM实例确认新加的盘都能认到,两个节点都要执行
sqlplus '/as sysasm'
col path format a40
set linesize 160 pagesize 200
select mount_status,header_status,mode_status,os_mb,state,path from v$asm_disk where header_status='CANDIDATE' order by path;
MOUNT_S HEADER_STATU MODE_ST      OS_MB STATE    PATH
------- ------------ ------- ---------- -------- ----------------------------------------
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower0
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower1
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower10
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower102
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower103
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower104
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower105
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower106
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower107
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower108
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower109
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower11
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower110
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower111
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower112
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower113
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower114
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower115
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower116
CLOSED  CANDIDATE    ONLINE         937 NORMAL   /dev/rhdiskpower117
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower2
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower3
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower4
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower5
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower59
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower6
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower60
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower61
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower62
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower63
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower64
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower65
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower66
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower67
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower68
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower69
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower7
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower70
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower71
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower72
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower73
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower74
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower75
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower76
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower77
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower78
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower79
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower8
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower80
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower81
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower82
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower83
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower84
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower85
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower86
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower87
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower88
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower89
CLOSED  CANDIDATE    ONLINE       46477 NORMAL   /dev/rhdiskpower9


5、挑首尾两块盘作读测试及kfed测试,使用oracle或者grid用户执行:
dd if=/dev/rhdiskpower58 of=/dev/null count=100 bs=8192
100+0 records in.
100+0 records out.


dd if=/dev/rhdiskpower89 of=/dev/null count=100 bs=8192
100+0 records in.
100+0 records out.


kfed read /dev/rhdiskpower58
kfed read /dev/rhdiskpower89


kfed的输出如下:
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                            0 ; 0x001: 0x00
kfbh.type:                            0 ; 0x002: KFBTYP_INVALID
kfbh.datfmt:                          0 ; 0x003: 0x00
kfbh.block.blk:                       0 ; 0x004: blk=0
kfbh.block.obj:                       0 ; 0x008: file=0
kfbh.check:                           0 ; 0x00c: 0x00000000
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000


MOS里关于KFBTYP_INVALID的描述:If the disk is not a FORMER disk, then kfed on new disks will return:    kfbh.type: 0 ; 0x002: KFBTYP_INVALID and that is expected


6、修改hdiskpowerX的reserve_policy属性,两节点都要执行
i=58
while [ $i -lt 90 ]
do
chdev -l hdiskpower${i} -a reserve_policy=no_reserve
(( i=i+1 ))
done


i=102
while [ $i -lt 118 ]
do
chdev -l hdiskpower${i} -a reserve_policy=no_reserve
(( i=i+1 ))
done


***验证reserve_policy是否已经成功
i=58
while [ $i -lt 90 ]
do
echo "hdiskpower${i} " `lsattr -El hdiskpower${i} |grep reserve_policy | awk '{print $2}'`
(( i=i+1 ))
done


i=102
while [ $i -lt 118 ]
do
echo "hdiskpower${i} " `lsattr -El hdiskpower${i} |grep reserve_policy | awk '{print $2}'`
(( i=i+1 ))
done


7、选一块新的盘在上面创建一个Diskgroup
create diskgroup dgnew1 external redundancy disk '/dev/rhdiskpower58';


SQL> SELECT NAME,TOTAL_MB,usable_file_mb,state FROM V$ASM_DISKGROUP where name='DGNEW1';


NAME                             TOTAL_MB USABLE_FILE_MB STATE
------------------------------ ---------- -------------- -----------
DGNEW1                              46477          46427 MOUNTED                <---损耗主要体现在Allocation Table、PST、Disk Directory等各种directory


diskgroup里所有的metadata见下:


PST
Allocation Table
Free Space Table
Disk Directory  (file number 2)
File Directory   (file number 1)
ACD  (file number 3)
Alias Directory  (file number 6)
Attribute Directory (file number 9)
User and Group Directory
Used Space Directory (file number 8)
How many partners
Continuing Operations Directory  (file number 4)
Template Directory (file number 5)
Volume Directory
staleness_directory_and_registry


8、检查crs里新建diskgroup的状态
grid@qc740701a:/home/grid>crsctl status res ora.DGNEW1.dg -t
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DGNEW1.dg
               OFFLINE OFFLINE      qc740701a        <---第二个节点上需要mount
               ONLINE  ONLINE       qc740702a     


因为是RAC环境,在第二个节点上也把这个diskgroup mount起来
su - grid
srvctl start diskgroup -g dgnew1 -n qc740701a


crsctl status res ora.DGNEW1.dg -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DGNEW1.dg
               ONLINE  ONLINE       qc740701a
               ONLINE  ONLINE       qc740702a


9、如果在第8步里,两个节点都能mount起DG,那么将这个diskgroup从N-1个节点都dismount,只留最后一个节点用于drop
qc740702a: dismount
srvctl stop diskgroup -g dgnew1 -n qc740702a


qc740701a: drop
drop diskgroup dgnew1


10、至此测试完毕,新认的盘已可以使用


//////////////////
// 第二部分:迁移ASM spfile, voting disk,ocr所在的DG至SATA盘
//////////////////
1、ASM spfile, voting disk 存放在SYSDG1、SYSDG2中,SYSDG3里暂时没有文件
ASMCMD> spget
+SYSDG1/shajx-cluster/asmparameterfile/registry.253.854489087    <---spfile
ASMCMD> quit


grid@qc740702a:/home/grid>ocrcheck -config   <---ocr file
Oracle Cluster Registry configuration is :
         Device/File Name         :    +sysdg1
         Device/File Name         :    +sysdg2
         
grid@qc740702a:/home/grid>crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
1. ONLINE   46c6fdafabb74fa1bf2987f4d9a846b5 (/dev/rhdiskpower46) [SYSDG2]   <---voting disk
Located 1 voting disk(s).


2、将hdiskpower102~hdiskpower117添加到SYSDG1、SYSDG2、SYSDG3
SYSDG1:
alter diskgroup sysdg1 add disk '/dev/rhdiskpower102','/dev/rhdiskpower103','/dev/rhdiskpower104','/dev/rhdiskpower105' drop disk SYSDG1_0000,SYSDG1_0001 rebalance power 500;


SYSDG2:
alter diskgroup sysdg2 add disk '/dev/rhdiskpower106','/dev/rhdiskpower107','/dev/rhdiskpower108','/dev/rhdiskpower109' drop disk SYSDG2_0000,SYSDG2_0001 rebalance power 500;


SYSDG3:
alter diskgroup sysdg3 add disk '/dev/rhdiskpower110','/dev/rhdiskpower111','/dev/rhdiskpower112','/dev/rhdiskpower113' drop disk SYSDG3_0000,SYSDG3_0001 rebalance power 500;


3、将hdiskpower58~hdiskpower73添加到AJXDG1
AJXDG1: 通过shell脚本获取SQL脚本
i=58
while [ $i -lt 74 ]
do
echo "alter diskgroup AJXDG1 add disk '/dev/rhdiskpower${i}' rebalance power 0;";
(( i=i+1 ))
done


得到如下脚本直接运行
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower58' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower59' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower60' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower61' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower62' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower63' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower64' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower65' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower66' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower67' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower68' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower69' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower70' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower71' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower72' rebalance power 0;
alter diskgroup AJXDG1 add disk '/dev/rhdiskpower73' rebalance power 0;


执行如下SQL
select 'alter diskgroup '||d.name||' drop disk '||s.name ||' rebalance power 0;' from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG1');


得到drop old disk的cmd
alter diskgroup AJXDG1 drop disk AJXDG1_0000 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0001 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0002 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0003 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0004 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0005 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0006 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0007 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0008 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0009 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0010 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0011 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0012 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0013 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0014 rebalance power 0;
alter diskgroup AJXDG1 drop disk AJXDG1_0015 rebalance power 0;


  ---3.1 观察rebalance前的磁盘状态
col path format a30
col header_status format a10
col mode_status format a20
set linesize 130 pagesize 130
select s.name,s.state,s.total_mb,s.free_mb,path,create_date from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG1');


NAME                           STATE      TOTAL_MB    FREE_MB PATH                           CREATE_DA
------------------------------ -------- ---------- ---------- ------------------------------ ---------
AJXDG1_0000                    DROPPING      46477      21880 /dev/rhdiskpower12             02-AUG-14
AJXDG1_0001                    DROPPING      46477      21885 /dev/rhdiskpower13             02-AUG-14
AJXDG1_0002                    DROPPING      46477      21883 /dev/rhdiskpower14             02-AUG-14
AJXDG1_0003                    DROPPING      46477      21878 /dev/rhdiskpower15             02-AUG-14
AJXDG1_0004                    DROPPING      46477      21883 /dev/rhdiskpower16             02-AUG-14
AJXDG1_0005                    DROPPING      46477      21874 /dev/rhdiskpower17             02-AUG-14
AJXDG1_0006                    DROPPING      46477      21886 /dev/rhdiskpower18             02-AUG-14
AJXDG1_0007                    DROPPING      46477      21879 /dev/rhdiskpower19             02-AUG-14
AJXDG1_0008                    DROPPING      46477      21879 /dev/rhdiskpower20             02-AUG-14
AJXDG1_0009                    DROPPING      46477      21885 /dev/rhdiskpower21             02-AUG-14
AJXDG1_0010                    DROPPING      46477      21887 /dev/rhdiskpower22             02-AUG-14
AJXDG1_0011                    DROPPING      46477      21884 /dev/rhdiskpower23             02-AUG-14
AJXDG1_0012                    DROPPING      46477      21881 /dev/rhdiskpower24             02-AUG-14
AJXDG1_0013                    DROPPING      46477      21880 /dev/rhdiskpower25             02-AUG-14
AJXDG1_0014                    DROPPING      46477      21885 /dev/rhdiskpower26             02-AUG-14
AJXDG1_0015                    DROPPING      46477      21877 /dev/rhdiskpower27             02-AUG-14
AJXDG1_0017                    NORMAL        46477      46475 /dev/rhdiskpower59             21-APR-16
AJXDG1_0018                    NORMAL        46477      46475 /dev/rhdiskpower60             21-APR-16
AJXDG1_0019                    NORMAL        46477      46475 /dev/rhdiskpower61             21-APR-16
AJXDG1_0020                    NORMAL        46477      46475 /dev/rhdiskpower62             21-APR-16
AJXDG1_0021                    NORMAL        46477      46475 /dev/rhdiskpower63             21-APR-16
AJXDG1_0022                    NORMAL        46477      46475 /dev/rhdiskpower64             21-APR-16
AJXDG1_0023                    NORMAL        46477      46475 /dev/rhdiskpower65             21-APR-16
AJXDG1_0024                    NORMAL        46477      46475 /dev/rhdiskpower66             21-APR-16
AJXDG1_0025                    NORMAL        46477      46475 /dev/rhdiskpower67             21-APR-16
AJXDG1_0026                    NORMAL        46477      46475 /dev/rhdiskpower68             21-APR-16
AJXDG1_0027                    NORMAL        46477      46475 /dev/rhdiskpower69             21-APR-16
AJXDG1_0028                    NORMAL        46477      46475 /dev/rhdiskpower70             21-APR-16
AJXDG1_0029                    NORMAL        46477      46475 /dev/rhdiskpower71             21-APR-16
AJXDG1_0030                    NORMAL        46477      46475 /dev/rhdiskpower72             21-APR-16
AJXDG1_0031                    NORMAL        46477      46475 /dev/rhdiskpower73             21-APR-16
AJXDG1_0016                    NORMAL        46477      46475 /dev/rhdiskpower58             21-APR-16


---3.2 发起rebalance,查看rebalance进度
alter diskgroup ajxdg1 rebalance power 500;


select * from v$asm_operation;
GROUP_NUMBER OPERA STAT      POWER     ACTUAL      SOFAR   EST_WORK   EST_RATE EST_MINUTES ERROR_CODE
------------ ----- ---- ---------- ---------- ---------- ---------- ---------- ----------- --------------------------------------------
           1 REBAL RUN         500        500      46040     393494      15207          22    <---est_rate=15207表示每分钟正在被move的AU个数,AU_SIZE=1M时表示每分钟15GB/分钟,折合250MB/s

***调高优先级,观察同步速度是否加快

alter diskgroup ajxdg1 rebalance power 999;

select * from v$asm_operation;


GROUP_NUMBER OPERA STAT      POWER     ACTUAL      SOFAR   EST_WORK   EST_RATE EST_MINUTES ERROR_CODE
------------ ----- ---- ---------- ---------- ---------- ---------- ---------- ----------- --------------------------------------------
           1 REBAL RUN         999        999      13462     236076      15482          14     <---改变了优先级,相当于将原来优先级为500的rebalance先停止然后以新的优先级发起所以EST_WORK值比一开始时小,刨掉了已经完成同步的AU


select * from v$asm_operation;


GROUP_NUMBER OPERA STAT      POWER     ACTUAL      SOFAR   EST_WORK   EST_RATE EST_MINUTES ERROR_CODE
------------ ----- ---- ---------- ---------- ---------- ---------- ---------- ----------- --------------------------------------------
           1 REBAL RUN         999        999      13822     236076      15469          14


看出调整为999之后速率并未明显上升,可能是因为IO请求已经出现了排队
powermt display every=1
Symmetrix logical device count=118
==============================================================================
----- Host Bus Adapters ---------  ------ I/O Paths -----  ------ Stats ------
###  HW Path                       Summary   Total   Dead  IO/Sec Q-IOs Errors
==============================================================================
   0 fscsi0                        optimal     118      0     117     1      0   <---Q-IOs!=0
   1 fscsi2                        optimal     118      0     132     2      0
   2 fscsi4                        optimal     118      0     127     2      0
   3 fscsi6                        optimal     118      0     124     1      0


---3.3 rebalance完成后的结果检查
col path format a30
col header_status format a10
col mode_status format a20
set linesize 130 pagesize 130
select s.name,s.state,s.total_mb,s.free_mb,path,create_date from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG1');


NAME                           STATE      TOTAL_MB    FREE_MB PATH                           CREATE_DA
------------------------------ -------- ---------- ---------- ------------------------------ ---------
AJXDG1_0017                    NORMAL        46477      21882 /dev/rhdiskpower59             21-APR-16
AJXDG1_0018                    NORMAL        46477      21882 /dev/rhdiskpower60             21-APR-16
AJXDG1_0019                    NORMAL        46477      21882 /dev/rhdiskpower61             21-APR-16
AJXDG1_0020                    NORMAL        46477      21881 /dev/rhdiskpower62             21-APR-16
AJXDG1_0021                    NORMAL        46477      21881 /dev/rhdiskpower63             21-APR-16
AJXDG1_0022                    NORMAL        46477      21882 /dev/rhdiskpower64             21-APR-16
AJXDG1_0023                    NORMAL        46477      21882 /dev/rhdiskpower65             21-APR-16
AJXDG1_0024                    NORMAL        46477      21881 /dev/rhdiskpower66             21-APR-16
AJXDG1_0025                    NORMAL        46477      21882 /dev/rhdiskpower67             21-APR-16
AJXDG1_0026                    NORMAL        46477      21882 /dev/rhdiskpower68             21-APR-16
AJXDG1_0027                    NORMAL        46477      21882 /dev/rhdiskpower69             21-APR-16
AJXDG1_0028                    NORMAL        46477      21882 /dev/rhdiskpower70             21-APR-16
AJXDG1_0029                    NORMAL        46477      21882 /dev/rhdiskpower71             21-APR-16
AJXDG1_0030                    NORMAL        46477      21881 /dev/rhdiskpower72             21-APR-16
AJXDG1_0031                    NORMAL        46477      21880 /dev/rhdiskpower73             21-APR-16
AJXDG1_0016                    NORMAL        46477      21882 /dev/rhdiskpower58             21-APR-16


4、将hdiskpower74~hdiskpower89添加到AJXDG2
AJXDG1: 通过shell脚本获取SQL脚本
i=74
while [ $i -lt 90 ]
do
echo "alter diskgroup AJXDG2 add disk '/dev/rhdiskpower${i}' rebalance power 0;";
(( i=i+1 ))
done


得到如下添加新盘的命令直接运行:
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower74' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower75' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower76' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower77' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower78' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower79' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower80' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower81' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower82' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower83' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower84' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower85' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower86' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower87' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower88' rebalance power 0;
alter diskgroup AJXDG2 add disk '/dev/rhdiskpower89' rebalance power 0;


执行如下SQL:
select 'alter diskgroup '||d.name||' drop disk '||s.name ||' rebalance power 0;' from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG2');


得到drop old disk的command
alter diskgroup AJXDG2 drop disk AJXDG2_0000 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0001 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0002 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0003 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0004 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0005 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0006 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0007 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0008 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0009 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0010 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0011 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0012 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0013 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0014 rebalance power 0;
alter diskgroup AJXDG2 drop disk AJXDG2_0015 rebalance power 0;


  ---4.1 观察rebalance前的磁盘状态
col path format a30
col header_status format a10
col mode_status format a20
set linesize 130 pagesize 130
select s.name,s.state,s.total_mb,s.free_mb,path,create_date from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG2');
NAME                           STATE      TOTAL_MB    FREE_MB PATH                           CREATE_DA
------------------------------ -------- ---------- ---------- ------------------------------ ---------
AJXDG2_0000                    DROPPING      46477      20092 /dev/rhdiskpower28             02-AUG-14
AJXDG2_0001                    DROPPING      46477      20091 /dev/rhdiskpower29             02-AUG-14
AJXDG2_0002                    DROPPING      46477      20088 /dev/rhdiskpower30             02-AUG-14
AJXDG2_0003                    DROPPING      46477      20090 /dev/rhdiskpower31             02-AUG-14
AJXDG2_0004                    DROPPING      46477      20092 /dev/rhdiskpower32             02-AUG-14
AJXDG2_0005                    DROPPING      46477      20097 /dev/rhdiskpower33             02-AUG-14
AJXDG2_0006                    DROPPING      46477      20092 /dev/rhdiskpower34             02-AUG-14
AJXDG2_0007                    DROPPING      46477      20089 /dev/rhdiskpower35             02-AUG-14
AJXDG2_0008                    DROPPING      46477      20092 /dev/rhdiskpower36             02-AUG-14
AJXDG2_0009                    DROPPING      46477      20089 /dev/rhdiskpower37             02-AUG-14
AJXDG2_0010                    DROPPING      46477      20089 /dev/rhdiskpower38             02-AUG-14
AJXDG2_0011                    DROPPING      46477      20089 /dev/rhdiskpower39             02-AUG-14
AJXDG2_0012                    DROPPING      46477      20091 /dev/rhdiskpower40             02-AUG-14
AJXDG2_0013                    DROPPING      46477      20094 /dev/rhdiskpower41             02-AUG-14
AJXDG2_0014                    DROPPING      46477      20089 /dev/rhdiskpower42             02-AUG-14
AJXDG2_0015                    DROPPING      46477      20087 /dev/rhdiskpower43             02-AUG-14
AJXDG2_0016                    NORMAL        46477      46475 /dev/rhdiskpower74             22-APR-16
AJXDG2_0028                    NORMAL        46477      46475 /dev/rhdiskpower86             22-APR-16
AJXDG2_0029                    NORMAL        46477      46475 /dev/rhdiskpower87             22-APR-16
AJXDG2_0030                    NORMAL        46477      46475 /dev/rhdiskpower88             22-APR-16
AJXDG2_0031                    NORMAL        46477      46475 /dev/rhdiskpower89             22-APR-16
AJXDG2_0024                    NORMAL        46477      46475 /dev/rhdiskpower82             22-APR-16
AJXDG2_0025                    NORMAL        46477      46475 /dev/rhdiskpower83             22-APR-16
AJXDG2_0026                    NORMAL        46477      46475 /dev/rhdiskpower84             22-APR-16
AJXDG2_0027                    NORMAL        46477      46475 /dev/rhdiskpower85             22-APR-16
AJXDG2_0021                    NORMAL        46477      46475 /dev/rhdiskpower79             22-APR-16
AJXDG2_0022                    NORMAL        46477      46475 /dev/rhdiskpower80             22-APR-16
AJXDG2_0023                    NORMAL        46477      46475 /dev/rhdiskpower81             22-APR-16
AJXDG2_0017                    NORMAL        46477      46475 /dev/rhdiskpower75             22-APR-16
AJXDG2_0018                    NORMAL        46477      46475 /dev/rhdiskpower76             22-APR-16
AJXDG2_0019                    NORMAL        46477      46475 /dev/rhdiskpower77             22-APR-16
AJXDG2_0020                    NORMAL        46477      46475 /dev/rhdiskpower78             22-APR-16


  ---4.2 发起rebalance,查看rebalance进度
alter diskgroup ajxdg2 rebalance power 1011;


SQL> select * from v$asm_operation


GROUP_NUMBER OPERA STAT      POWER     ACTUAL      SOFAR   EST_WORK   EST_RATE EST_MINUTES ERROR_CODE
------------ ----- ---- ---------- ---------- ---------- ---------- ---------- ----------- --------------------------------------------
           2 REBAL RUN        1011       1011       7834     422149      14768          28


  ---4.3 rebalance完成后的结果检查
col path format a30
col header_status format a10
col mode_status format a20
set linesize 130 pagesize 130
select s.name,s.state,s.total_mb,s.free_mb,path,create_date from v$asm_disk_stat s,v$asm_diskgroup_stat d where s.group_number=d.group_number and d.name in ('AJXDG2') order by s.name;
NAME                           STATE      TOTAL_MB    FREE_MB PATH                           CREATE_DA
------------------------------ -------- ---------- ---------- ------------------------------ ---------
AJXDG2_0016                    NORMAL        46477      20090 /dev/rhdiskpower74             22-APR-16
AJXDG2_0017                    NORMAL        46477      20091 /dev/rhdiskpower75             22-APR-16
AJXDG2_0018                    NORMAL        46477      20091 /dev/rhdiskpower76             22-APR-16
AJXDG2_0019                    NORMAL        46477      20091 /dev/rhdiskpower77             22-APR-16
AJXDG2_0020                    NORMAL        46477      20091 /dev/rhdiskpower78             22-APR-16
AJXDG2_0021                    NORMAL        46477      20090 /dev/rhdiskpower79             22-APR-16
AJXDG2_0022                    NORMAL        46477      20091 /dev/rhdiskpower80             22-APR-16
AJXDG2_0023                    NORMAL        46477      20091 /dev/rhdiskpower81             22-APR-16
AJXDG2_0024                    NORMAL        46477      20090 /dev/rhdiskpower82             22-APR-16
AJXDG2_0025                    NORMAL        46477      20091 /dev/rhdiskpower83             22-APR-16
AJXDG2_0026                    NORMAL        46477      20091 /dev/rhdiskpower84             22-APR-16
AJXDG2_0027                    NORMAL        46477      20091 /dev/rhdiskpower85             22-APR-16
AJXDG2_0028                    NORMAL        46477      20090 /dev/rhdiskpower86             22-APR-16
AJXDG2_0029                    NORMAL        46477      20090 /dev/rhdiskpower87             22-APR-16
AJXDG2_0030                    NORMAL        46477      20091 /dev/rhdiskpower88             22-APR-16
AJXDG2_0031                    NORMAL        46477      20091 /dev/rhdiskpower89             22-APR-16


5、(可选),将原先的Votedisk从external redundancy的DG迁移到normal redundancy的DG
grid@qc740702a:/home/grid>crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
 1. ONLINE   a48d1185b7be4f17bf06f6dd01e84d88 (/dev/rhdiskpower106) [SYSDG2]    <---原来voting disk只有一块盘
Located 1 voting disk(s).


***创建normal redundancy的diskgroup
create diskgroup sysdg3 normal redundancy failgroup vdfg1 disk '/dev/rhdiskpower110','/dev/rhdiskpower111' failgroup vdfg2 disk '/dev/rhdiskpower112','/dev/rhdiskpower113' failgroup vdfg3 disk '/dev/rhdiskpower114','/dev/rhdiskpower115' attribute 'compatible.asm'='11.2.0.3','compatible.rdbms'='11.2.0.0.0' ;


***迁移到sysdg3
grid@qc740702a:/home/grid>crsctl replace votedisk +sysdg3
Successful addition of voting disk 72d81026f64d4f86bf7a7ec0845201db.
Successful addition of voting disk 2fa55993ec494fa8bf839661e2c43e89.
Successful addition of voting disk 1127e47a60084f8ebf6f2292143710c0.
Successful deletion of voting disk a48d1185b7be4f17bf06f6dd01e84d88.
Successfully replaced voting disk group with +sysdg3.
CRS-4266: Voting file(s) successfully replaced


grid@qc740702a:/home/grid>crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
 1. ONLINE   72d81026f64d4f86bf7a7ec0845201db (/dev/rhdiskpower110) [SYSDG3] <---现在voting disk有三块了
 2. ONLINE   2fa55993ec494fa8bf839661e2c43e89 (/dev/rhdiskpower112) [SYSDG3]
 3. ONLINE   1127e47a60084f8ebf6f2292143710c0 (/dev/rhdiskpower114) [SYSDG3]
Located 3 voting disk(s).

来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/53956/viewspace-2087627/,如需转载,请注明出处,否则将追究法律责任。

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