Redhat 下 ASM oracleasm deletedisk -failed 的解決方法

轉自：http://blog.sina.com.cn/s/blog_465a4a1e0100pyxm.html

在虛擬機器上搭建Oracle 11gR2 的RAC。 安裝Clusterware的時候出了一點錯誤。 所以強行把Clusterware 給刪除了。 清除了相關的目錄和檔案。 因為11gr2 的OCR是存放在ASM上 的，所以需要清除這部分資訊。

 

 

[root@rac2 ~]# oracleasm listdisks

CRS

DATA

FRA

[root@rac2 ~]# oracleasm deletedisk CRS

Clearing disk header: failed

Unable to clear disk "CRS"

[root@rac2 ~]# oracleasm scandisks

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

[root@rac2 ~]# oracleasm listdisks

CRS

DATA

FRA

 

 

可是刪除 報Clearing disk header: failed錯誤。 嘗試把另一個節點的ASM 停止掉刪除，還是不行。

 

看了一下oracleasm的log：

[root@rac1 mapper]# tail -20 /var/log/oracleasm

Cleaning disk "DATA"

Validating disk "FRA"

Unmounting ASMlib driver filesystem: /dev/oracleasm

Unloading module "oracleasm": oracleasm

Disk "CRS" does not exist or is not instantiated

Clearing disk header: done

Loading module "oracleasm": oracleasm

Mounting ASMlib driver filesystem: /dev/oracleasm

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

Disk "FRA" does not exist or is not instantiated

Instantiating disk "FRA"

oracleasm-read-label: Unable to read device "/dev/sdb": Input/output error

oracleasm-read-label: Unable to read device "/dev/sdf": Input/output error

Disk "DATA" does not exist or is not instantiated

Instantiating disk "DATA"

oracleasm-read-label: Unable to read device "/dev/sdd": Input/output error

Disk "FRA" is a valid ASM disk

Disk "DATA" is a valid ASM disk

 

 

 

google了一下。  在Oracle 論壇上找到了解決方法：

 

 

Same problem with 11.2.0.1 on x86-64 RH Linux 5.4.
Had to :
1. shutdown CRS on all nodes of the cluster (# ./crsctl stop crs)
2. disable CRS from starting on reboot (# ./crsctl disable crs)
3. Reboot all the servers (# shutdown -r now)
4. After reboot, stop ASMLIB (# service oracleasm stop)
5. Remove the disk using physical name rather than logical name (service oracleasm deletedisk /dev/mapper/mpath01p1)
6. Restart ASMLIB (# service oracleasm start)
7. Enable CRS on re-boot (# ./crsctl disable crs)

 

 

因為我之前的Cluster已經刪除，所以直接停ASM server。 刪除就可以了。

[root@rac1 mapper]# service oracleasm stop

Dropping Oracle ASMLib disks: [  OK  ]

Shutting down the Oracle ASMLib driver: [  OK  ]

[root@rac1 mapper]# ls

control  crs  crsp1  data  datap1  fra  frap1

[root@rac1 mapper]# service oracleasm deletedisk /dev/mapper/crsp1

Removing ASM disk "/dev/mapper/crsp1": [  OK  ]

[root@rac1 mapper]# service oracleasm start

Initializing the Oracle ASMLib driver: [  OK  ]

Scanning the system for Oracle ASMLib disks: [  OK  ]

[root@rac1 mapper]# oracleasm listdisks

DATA

FRA

 

搞定。  到另一個節點檢視：

 

[root@rac2 ~]# oracleasm listdisks

CRS

DATA

FRA

[root@rac2 ~]# oracleasm scandisks

Reloading disk partitions: done

Cleaning any stale ASM disks...

Cleaning disk "CRS"

Scanning system for ASM disks...

[root@rac2 ~]# oracleasm listdisks

DATA

FRA

 

也同步了。 看來ASM 11在Linux 5.4 上還是有點問題。