OLR相关维护

[[email protected] cdata]# cd /etc/oracle

[[email protected] oracle]# ls -l

total 2868

drwxrwx--- 2 root oinstall    4096 Nov 24 20:00 lastgasp

drwxrwxrwt 2 root oinstall    4096 Dec 21 20:51 maps

-rw-r--r-- 1 root oinstall      96 Nov 25 18:38 ocr.loc

-rw-r--r-- 1 root root           0 Nov 24 19:58 ocr.loc.orig

-rw-r--r-- 1 root oinstall      80 Nov 24 19:58 olr.loc

-rw-r--r-- 1 root root           0 Nov 24 19:58 olr.loc.orig

drwxrwxr-x 5 root oinstall    4096 Nov 24 19:57 oprocd

drwxr-xr-x 3 root oinstall    4096 Nov 24 19:57 scls_scr

-rws--x--- 1 root oinstall 2904377 Nov 24 19:57 setasmgid

[[email protected] oracle]# more olr.loc

olrconfig_loc=/u01/app/12.1.0/grid/cdata/rac2.olr

crs_home=/u01/app/12.1.0/grid

--在部分平台olr.loc文件可能在/var/opt/oracle/目录下

[[email protected] oracle]#  ocrcheck -config -local

Oracle Local Registry configuration is :

         Device/File Name         : /u01/app/12.1.0/grid/cdata/rac2.olr

[[email protected] oracle]# ocrcheck -local

Status of Oracle Local Registry is as follows :

         Version                  :          4

         Total space (kbytes)     :     409568

         Used space (kbytes)      :        996

         Available space (kbytes) :     408572

         ID                       :  816087519

         Device/File Name         : /u01/app/12.1.0/grid/cdata/rac2.olr

                                    Device/File integrity check succeeded

         Local registry integrity check succeeded

         Logical corruption check succeeded

[[email protected] oracle]# ls -l /u01/app/12.1.0/grid/cdata/rac2.olr

-rw------- 1 root oinstall 503484416 Dec 22 12:09 /u01/app/12.1.0/grid/cdata/rac2.olr

[[email protected] oracle]# ocrconfig -local -showbackup

rac2     2013/11/24 20:02:38     /u01/app/12.1.0/grid/cdata/rac2/backup_20131124_200238.olr

[[email protected] oracle]# ocrconfig -local -manualbackup

rac2     2013/12/22 12:09:33     /u01/app/12.1.0/grid/cdata/rac2/backup_20131222_120933.olr

rac2     2013/11/24 20:02:38     /u01/app/12.1.0/grid/cdata/rac2/backup_20131124_200238.olr

[[email protected] oracle]# ls -l /u01/app/12.1.0/grid/cdata/rac2/

total 1908

-rw-r--r-- 1 root root  860160 Nov 24 20:02 backup_20131124_200238.olr

-rw-r--r-- 1 root root 1085440 Dec 22 12:09 backup_20131222_120933.olr

--破坏OLR

[[email protected] oracle]# ls -l /u01/app/12.1.0/grid/cdata/rac2.olr

-rw------- 1 root oinstall 503484416 Dec 22 12:09 /u01/app/12.1.0/grid/cdata/rac2.olr

[[email protected] oracle]# /u01/app/12.1.0/grid/cdata/rac2.olr /u01/app/12.1.0/grid/cdata/rac2.olr_bak

--关闭crs

[[email protected] oracle]# crsctl stop crs

--启动crs报错

[[email protected] oracle]# crsctl start crs

PROCL-26: Error while accessing the physical storage Operating System error [No such file or directory] [2]

CRS-4000: Command Start failed, or completed with errors.

--跟踪crs启动

[[email protected] oracle]# strace crsctl start crs

……

uname({sys="Linux", node="rac2", ...})  = 0

open("/etc/oracle/olr.loc", O_RDONLY)   = 14

fstat(14, {st_mode=S_IFREG|0644, st_size=80, ...}) = 0

mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd8ac628000

read(14, "olrconfig_loc=/u01/app/12.1.0/gr"..., 4096) = 80

read(14, "", 4096)                      = 0

close(14)                               = 0

munmap(0x7fd8ac628000, 4096)            = 0

stat("/u01/app/12.1.0/grid/cdata/rac2.olr", 0x7fffa215a580) = -1 ENOENT (No such file or directory)

--这里可以看到先是读取/etc/oracle/olr.loc,然后获取/u01/app/12.1.0/grid/cdata/rac2.olr失败

……

--确定ohasd.bin关闭

[[email protected] cdata]# ps -ef|grep ohasd

root     15715 31578  0 14:34 pts/3    00:00:00 grep ohasd

--还原OLR

[[email protected] oracle]# ocrconfig -local -restore /u01/app/12.1.0/grid/cdata/rac2/backup_20131124_200238.olr

PROTL-35: The configured OLR location is not accessible

[[email protected] oracle]# cd /u01/app/12.1.0/grid/cdata/

[[email protected] cdata]# ls

localhost  rac12c-cluster  rac2  rac2.olr_bak

[[email protected] cdata]# touch rac2.olr

[[email protected] cdata]# chmod 600 rac2.olr

[[email protected] cdata]# ocrconfig -local -restore /u01/app/12.1.0/grid/cdata/rac2/backup_20131124_200238.olr

--确定还原成功

[[email protected] cdata]# ls -l

total 84200

drwxr-xr-x 2 grid oinstall      4096 Nov 24 19:37 localhost

drwxrwxr-x 2 grid oinstall      4096 Dec 22 09:07 rac12c-cluster

drwxr-xr-x 2 grid oinstall      4096 Dec 22 12:09 rac2

-rw------- 1 root root     503484416 Dec 22 14:29 rac2.olr

-rw------- 1 root oinstall 503484416 Dec 22 12:43 rac2.olr_bak

--启动crs

[[email protected] cdata]# crsctl start crs

CRS-4123: Oracle High Availability Services has been started.

To export OLR to a file:

# ocrconfig –local –export file_name

To import a specified file to OLR:

# ocrconfig –local –import file_name

To view the contents of the OLR file:

ocrdump -local file_name

To view the contents of the OLR backup file:

ocrdump -local -backupfile olr_backup_file_name

To change the OLR backup location:

ocrconfig -local -backuploc new_olr_backup_path