概要：本文详细记录如何把运行在Windows 2K8环境上的Oracle 10gR2 双节点RAC数据库的OCR、Vote Disk以及存放在ASM磁盘组里的数据，迁移至新存储的步骤。
迁移之前的存储信息：
如上图所示，我们的最终目标是要把OCR、Vote Disk，DATA、FLASH磁盘组从Disk 2，Disk 3上分别迁移至Disk 4和Disk 5。
接下来给出详细的操作步骤和流程：
1 迁移OCR
A 创建磁盘分区
C:\Users\Administrator>diskpart Microsoft DiskPart version 6.1.7601 Copyright (C) 1999-2008 Microsoft Corporation. On computer: HAMNODE1 DISKPART> list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 40 GB 0 B Disk 1 Online 20 GB 19 GB Disk 2 Online 6149 MB 2048 KB Disk 3 Online 6149 MB 2048 KB Disk 4 Online 6149 MB 6147 MB Disk 5 Online 10 GB 10 GB DISKPART> select disk 4 Disk 4 is now the selected disk. DISKPART> list part There are no partitions on this disk to show. DISKPART> create part ext DiskPart succeeded in creating the specified partition. DISKPART> create part log size=320 DiskPart succeeded in creating the specified partition. DISKPART> create part log DiskPart succeeded in creating the specified partition. DISKPART> list part Partition ### Type Size Offset ------------- ---------------- ------- ------- Partition 0 Extended 6147 MB 1024 KB Partition 1 Logical 320 MB 2048 KB * Partition 2 Logical 5825 MB 323 MB DISKPART>
分区之后：
注：您应该在其他节点上看到同样的磁盘分区信息。且，建议在其他节点上将Windows系统自动给新分区分配的盘符移除掉。
B 准备磁盘，创建裸设备链接
C:\oracle\product\10.2.0\crs\BIN\GUIOracleOBJManager.exe
同样，执行完上述操作，您应该在RAC的所有节点上通过
C:\oracle\product\10.2.0\crs\BIN\GUIOracleOBJManager.exe程序看到相同的信息。
C 手工备份OCR
ocrconfig -export c:\oracle…..\backup_filename
备份之前，可以查看下OCR的自动备份信息：
c:\oracle\product\10.2.0\crs\BIN>ocrconfig -showbackup hamnode2 2014/05/08 06:01:07 C:\oracle\product\10.2.0\crs\cdata\crs hamnode2 2014/05/07 23:44:04 C:\oracle\product\10.2.0\crs\cdata\crs hamnode2 2014/05/07 19:44:04 C:\oracle\product\10.2.0\crs\cdata\crs hamnode2 2014/05/06 16:34:35 C:\oracle\product\10.2.0\crs\cdata\crs hamnode1 2014/04/30 07:09:51 C:\oracle\product\10.2.0\crs\cdata\crs c:\oracle\product\10.2.0\crs\BIN>
执行备份：
c:\oracle\product\10.2.0\crs\BIN>ocrconfig -export C:\oracle\product\10.2.0\crs\cdata\crs\backup_ocr_140508.bak c:\oracle\product\10.2.0\crs\BIN>cd ..\cdata\crs c:\oracle\product\10.2.0\crs\cdata\crs>dir Volume in drive C has no label. Volume Serial Number is BA2B-5F59 Directory of c:\oracle\product\10.2.0\crs\cdata\crs 05/08/2014 07:50 AM <DIR> . 05/08/2014 07:50 AM <DIR> .. 05/06/2014 03:24 AM 4,063,232 backup00.ocr 05/05/2014 11:24 PM 4,063,232 backup01.ocr 05/05/2014 07:24 PM 4,063,232 backup02.ocr 05/08/2014 07:43 AM 94,029 backup_ocr_140508.bak 05/02/2014 06:23 AM 4,042,752 day.ocr 05/05/2014 03:24 PM 4,063,232 day_.ocr 05/02/2014 01:04 AM 93,359 hw_backup_ocr.bak 04/30/2014 07:09 AM 4,042,752 week.ocr 8 File(s) 24,525,820 bytes 2 Dir(s) 20,506,509,312 bytes free c:\oracle\product\10.2.0\crs\cdata\crs>
D 添加OCR镜像
ocrconfig -replace ocrmirror \\.\ocrmirror
添加之前，查看OCR信息：
c:\oracle\product\10.2.0\crs\BIN>ocrcheck Status of Oracle Cluster Registry is as follows : Version : 2 Total space (kbytes) : 327452 Used space (kbytes) : 3836 Available space (kbytes) : 323616 ID : 478679697 Device/File Name : \\.\ocrcfg Device/File integrity check succeeded Device/File not configured Cluster registry integrity check succeeded c:\oracle\product\10.2.0\crs\BIN>
添加OCRMIRROR并验证：
c:\oracle\product\10.2.0\crs\BIN>ocrconfig -replace ocrmirror \\.\ocrmirror c:\oracle\product\10.2.0\crs\BIN>ocrcheck Status of Oracle Cluster Registry is as follows : Version : 2 Total space (kbytes) : 327452 Used space (kbytes) : 3836 Available space (kbytes) : 323616 ID : 478679697 Device/File Name : \\.\ocrcfg Device/File integrity check succeeded Device/File Name : \\.\ocrmirror Device/File integrity check succeeded Cluster registry integrity check succeeded c:\oracle\product\10.2.0\crs\BIN>
E 删除OCR device并验证
c:\oracle\product\10.2.0\crs\BIN>ocrconfig -replace ocr c:\oracle\product\10.2.0\crs\BIN>ocrcheck Status of Oracle Cluster Registry is as follows : Version : 2 Total space (kbytes) : 327452 Used space (kbytes) : 3836 Available space (kbytes) : 323616 ID : 478679697 Device/File Name : \\.\ocrmirror Device/File integrity check succeeded Device/File not configured Cluster registry integrity check succeeded c:\oracle\product\10.2.0\crs\BIN>
F 重启CRS并验证
至此，我们通过给OCR添加1份镜像然后删除原主OCR的方式，完成对OCR的迁移。
注：通过这种方式，删除原OCR之后，新添加的OCR镜像自动成为主OCR。
2 迁移Vote Disk
A 创建磁盘分区
这里的创建磁盘分区如创建OCR磁盘分区时，方法一致：
C:\Users\Administrator>diskpart Microsoft DiskPart version 6.1.7601 Copyright (C) 1999-2008 Microsoft Corporation. On computer: HAMNODE1 DISKPART> list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 40 GB 0 B Disk 1 Online 20 GB 19 GB Disk 2 Online 6149 MB 2048 KB Disk 3 Online 6149 MB 2048 KB Disk 4 Online 6149 MB 2048 KB Disk 5 Online 10 GB 10 GB DISKPART> select disk 5 Disk 5 is now the selected disk. DISKPART> list part There are no partitions on this disk to show. DISKPART> create part ext DiskPart succeeded in creating the specified partition. DISKPART> create part log size=196 DiskPart succeeded in creating the specified partition. DISKPART> create part log DiskPart succeeded in creating the specified partition. DISKPART> list part Partition ### Type Size Offset ------------- ---------------- ------- ------- Partition 0 Extended 10 GB 1024 KB Partition 1 Logical 196 MB 2048 KB * Partition 2 Logical 9 GB 199 MB DISKPART>
分区之后的信息：
注：您应该在其他节点上看到同样的磁盘分区信息。且，建议在其他节点上将Windows系统自动给新分区分配的盘符移除掉。
B 准备磁盘，创建裸设备链接
这里的创建磁盘分区如创建OCR磁盘分区时，方法一致：
C:\oracle\product\10.2.0\crs\BIN\GUIOracleOBJManager.exe
C 查看Vote Disk信息
c:\oracle\product\10.2.0\crs\BIN>crsctl query css votedisk 0. 0 \\.\votedsk1 located 1 votedisk(s). c:\oracle\product\10.2.0\crs\BIN>
D 备份Vote Disk
c:\oracle\product\10.2.0\crs\BIN>ocopy \\.\votedsk1 c:\oracle\product\10.2.0\crs\cdata\crs\votedisk_140508.bak C:\ORACLE\PRODUCT\10.2.0\CRS\CDATA\CRS\VOTEDISK_140508.BAK c:\oracle\product\10.2.0\crs\BIN>cd ..\cdata\crs c:\oracle\product\10.2.0\crs\cdata\crs>dir Volume in drive C has no label. Volume Serial Number is BA2B-5F59 Directory of c:\oracle\product\10.2.0\crs\cdata\crs 05/08/2014 08:37 AM <DIR> . 05/08/2014 08:37 AM <DIR> .. 05/06/2014 03:24 AM 4,063,232 backup00.ocr 05/05/2014 11:24 PM 4,063,232 backup01.ocr 05/05/2014 07:24 PM 4,063,232 backup02.ocr 05/08/2014 07:43 AM 94,029 backup_ocr_140508.bak 05/02/2014 06:23 AM 4,042,752 day.ocr 05/05/2014 03:24 PM 4,063,232 day_.ocr 05/02/2014 01:04 AM 93,359 hw_backup_ocr.bak 05/08/2014 08:37 AM 205,520,896 VOTEDISK_140508.BAK 04/30/2014 07:09 AM 4,042,752 week.ocr 9 File(s) 230,046,716 bytes 2 Dir(s) 20,299,304,960 bytes free c:\oracle\product\10.2.0\crs\cdata\crs>
E 停止CRS
c:\oracle\product\10.2.0\crs\BIN>srvctl stop database -d hamrac c:\oracle\product\10.2.0\crs\BIN>srvctl stop asm -n hamnode1 c:\oracle\product\10.2.0\crs\BIN>srvctl stop asm -n hamnode2 c:\oracle\product\10.2.0\crs\BIN>srvctl stop nodeapps -n hamnode2 c:\oracle\product\10.2.0\crs\BIN>srvctl stop nodeapps -n hamnode1 c:\oracle\product\10.2.0\crs\BIN>crs_stat -t Name Type Target State Host ------------------------------------------------------------ ora....SM1.asm application OFFLINE OFFLINE ora....E1.lsnr application OFFLINE OFFLINE ora....de1.gsd application OFFLINE OFFLINE ora....de1.ons application OFFLINE OFFLINE ora....de1.vip application OFFLINE OFFLINE ora....SM2.asm application OFFLINE OFFLINE ora....E2.lsnr application OFFLINE OFFLINE ora....de2.gsd application OFFLINE OFFLINE ora....de2.ons application OFFLINE OFFLINE ora....de2.vip application OFFLINE OFFLINE ora.hamrac.db application OFFLINE OFFLINE ora....c1.inst application OFFLINE OFFLINE ora....c2.inst application OFFLINE OFFLINE c:\oracle\product\10.2.0\crs\BIN>crsctl stop crs Stopping resources. This could take several minutes. Successfully stopped CRS resources. Stopping CSSD. Shutting down CSS daemon. Shutdown request successfully issued. c:\oracle\product\10.2.0\crs\BIN>
注：最后一步停止CRS时，您需要到RAC所有节点上都停止CRS！
F 添加Vote Disk
c:\oracle\product\10.2.0\crs\BIN>crsctl add css votedisk \\.\votedsk2 -force Now formatting voting disk: \\.\votedsk2 successful addition of votedisk \\.\votedsk2. c:\oracle\product\10.2.0\crs\BIN>crsctl query css votedisk 0. 0 \\.\votedsk1 1. 0 \\.\votedsk2 located 2 votedisk(s). c:\oracle\product\10.2.0\crs\BIN>
G 删除原Vote Disk
c:\oracle\product\10.2.0\crs\BIN>crsctl delete css votedisk \\.\votedsk1 -force successful deletion of votedisk \\.\votedsk1. c:\oracle\product\10.2.0\crs\BIN>crsctl query css votedisk 0. 0 \\.\votedsk2 located 1 votedisk(s). c:\oracle\product\10.2.0\crs\BIN>
H 启动CRS并验证
3 迁移ASM DATA磁盘组
A 查看ASM磁盘信息
C:\Users\Administrator>asmtool -list NTFS \Device\Harddisk0\Partition1 100M NTFS \Device\Harddisk0\Partition2 40858M Oracle Raw Device file \Device\Harddisk2\Partition1 320M ORCLDISKDATA1 \Device\Harddisk2\Partition2 5825M Oracle Raw Device file \Device\Harddisk3\Partition1 196M ORCLDISKFRA0 \Device\Harddisk3\Partition2 5949M Oracle Raw Device file \Device\Harddisk4\Partition1 320M \Device\Harddisk4\Partition2 5825M Oracle Raw Device file \Device\Harddisk5\Partition1 196M \Device\Harddisk5\Partition2 10044M C:\Users\Administrator>set oracle_sid=+asm1 C:\Users\Administrator>sqlplus / as sysdba SQL*Plus: Release 10.2.0.5.0 - Production on Fri May 9 01:57:46 2014 Copyright (c) 1982, 2010, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Real Application Clusters, OLAP, Data Mining and Real Application Testing options SQL> col path for a30 SQL> set line 120 SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- ------------------------------ DATA_0001 NORMAL 5825 4215 \\.\ORCLDISKDATA1 FRA_0000 NORMAL 5949 5667 \\.\ORCLDISKFRA0 SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 5825 4215 FRA MOUNTED 5949 5667 SQL>
结合上述，看到DATA磁盘组[目前只有1个ASM磁盘，DATA_0001]对应于\Device\Harddisk2\Partition2设备。
FRA磁盘组[目前也只有1个ASM磁盘，FRA_0000]对应于\Device\Harddisk3\Partition2。
B DATA磁盘组添加磁盘
SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 11650 10038 FRA MOUNTED 5949 5667 SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- ------------------ DATA_0001 NORMAL 5825 5019 \\.\ORCLDISKDATA1 FRA_0000 NORMAL 5949 5667 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 5019 \\.\ORCLDISKDATA0 SQL>
C DATA磁盘组移除旧磁盘
SQL> alter diskgroup data drop disk data_0001; Diskgroup altered. SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- ------------------------------ DATA_0001 DROPPING 5825 5186 \\.\ORCLDISKDATA1 FRA_0000 NORMAL 5949 5667 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 4852 \\.\ORCLDISKDATA0 SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 11650 10038 FRA MOUNTED 5949 5667 SQL> select * from v$asm_operation; GROUP_NUMBER OPERA STAT POWER ACTUAL SOFAR EST_WORK EST_RATE EST_MINUTES ------------ ----- ---- ---------- ---------- ---------- ---------- ---------- ----------- 1 REBAL RUN 1 1 776 808 1451 0 SQL>
直到最后：
SQL> select * from v$asm_operation; no rows selected SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 5825 4215 FRA MOUNTED 5949 5667 SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- -------------------- NORMAL 5825 0 \\.\ORCLDISKDATA1 FRA_0000 NORMAL 5949 5667 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 4215 \\.\ORCLDISKDATA0 SQL>
4 迁移ASM FRA磁盘组
A FRA磁盘组添加新磁盘
SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- -------------------- NORMAL 5825 0 \\.\ORCLDISKDATA1 FRA_0000 NORMAL 5949 5842 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 4215 \\.\ORCLDISKDATA0 FRA_0001 NORMAL 10044 9867 \\.\ORCLDISKFRA1 SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 5825 4215 FRA MOUNTED 15993 15709 SQL>
B FRA磁盘组删除旧磁盘
SQL> alter diskgroup fra drop disk fra_0000; Diskgroup altered. SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 5825 4215 FRA MOUNTED 15993 15709 SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- ------------------ NORMAL 5825 0 \\.\ORCLDISKDATA1 FRA_0000 DROPPING 5949 5920 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 4215 \\.\ORCLDISKDATA0 FRA_0001 NORMAL 10044 9789 \\.\ORCLDISKFRA1 SQL> select * from v$asm_operation; no rows selected SQL> select name,state,total_mb,free_mb,path from v$asm_disk; NAME STATE TOTAL_MB FREE_MB PATH ------------------------------ -------- ---------- ---------- ------------------ NORMAL 5825 0 \\.\ORCLDISKDATA1 NORMAL 5949 0 \\.\ORCLDISKFRA0 DATA_0000 NORMAL 5825 4215 \\.\ORCLDISKDATA0 FRA_0001 NORMAL 10044 9762 \\.\ORCLDISKFRA1 SQL> select name,state,total_mb,free_mb from v$asm_diskgroup; NAME STATE TOTAL_MB FREE_MB ------------------------------ ----------- ---------- ---------- DATA MOUNTED 5825 4215 FRA MOUNTED 10044 9762 SQL>
其他具体操作步骤类似。
5 删除磁盘分区
删除卷、磁盘分区信息之后：
最终，对于OCR、Vote Disk的数据，我们分别通过添加镜像的方式，然后删除现有的配置，进而间接的将OCR、Vote Disk分别从Disk 2、Disk 3迁移到Disk 4和Disk 5。
对于存放在ASM 磁盘的DATA和FRA中的数据，我们是通过先对现有DATA、FRA 磁盘组分别添加ASM磁盘，然后删除磁盘组中原有的旧ASM磁盘，进而完成迁移ASM 磁盘数据的目标！
6 注意事项
1 Note:
Note:
You can migrate the RAC OCR when CRS is running ,but you cannot migrate the Voting Disk when the CRS is running.That means we must stop the CRS before we can migrate the Voting Disk.
2 Note:
Also,you must backup the voting disk when the CRS is running,or else if you shutdown the CRS first,and then you cannot use the ocopy command to backup the voting disk.
3 Note:
PROT-22: Storage too small
Cause:
The ocrmirror disk space is less than the ocr disk space.
Solution:
Enlarge the ocrmirror disk space as the same as the ocr disk space.
4 Note:
PROT-21: Invalid parameter
Cause:
PROT-21 error is encountered because the cluster is not yet fully aware of the newly created logical drive that is being specified for <filename> in the ocrconfig -replace command.
Solution:[Doc ID 1059663.1]
This code defect is fixed in patch bundle 31 (and higher) for Oracle on Windows.
Patch 31 is available for download from My Oracle Support under the following patch numbers:
Microsoft Windows (32-bit) – 9233830
Microsoft Windows Itanium (64-bit) – 9233831
Microsoft Windows x64 (64-bit) – 9233832
There is also a relatively simple workaround available. Namely, stop and restart the Oracle Object Service after creating the symbolic link for the new logical drive and before running the ‘ocrconfig -replace’ command.
