Device ‘xx' is already labeled for ASM disk 的故障处理

                    

简单记录一则在Linux平台上创建ASM磁盘时遭遇：

Device "/dev/sdf1" is already labeled for ASM disk ""

的错误！

1 故障现象：

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[root@node1 ~]# /usr/sbin/oracleasm listdisks ASMDISK1 ASMDISK2 [root@node1 ~]# /usr/sbin/oracleasm createdisk asmdisk3 /dev/sdf1 Device "/dev/sdf1"is already labeled forASM disk "" [root@node1 ~]# ll /dev/oracleasm/disks/ total 0 brw-rw---- 1 oracle oinstall 8, 49 Dec 25 16:53 ASMDISK1 brw-rw---- 1 oracle oinstall 8, 65 Dec 25 16:53 ASMDISK2 [root@node1 ~]#

2 故障处理：

通过查看/etc/blkid/blkid.tab文件，确实看到设备/dev/sdf1已经是一块ASM磁盘，只是ASM卷标为空。

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[root@node1 ~]# cat /etc/blkid/blkid.tab <device devno="0x0802"time="1387961123"type="swap" label="SWAP-sda2">/dev/sda2</device> <device devno="0x0801"time="1387961122"label="/" uuid="10af0e65-23e8-4f8e-94a2-cd9ee105d775"sec_type="ext2" type="ext3">/dev/sda1</device> <device devno="0x1600"time="1387638279"label="20100727_095827"type="iso9660">/dev/cdrom</device> <device devno="0x1600"time="1387959583"label="20100727_095827"type="iso9660">/dev/hdc</device> <device devno="0x0841"time="1387959583"label="ASMDISK2" type="oracleasm">/dev/sde1</device> <device devno="0x0831"time="1387959583"label="ASMDISK1" type="oracleasm">/dev/sdd1</device> <device devno="0x0851"time="1387959583"label="" type="oracleasm">/dev/sdf1</device> [root@node1 ~]#

通过/usr/sbin/oracleasm renamedisk命令来重命名磁盘：

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[root@node1 ~]# /usr/sbin/oracleasm renamedisk -f /dev/sdf1 asmdisk3 Writing disk header:done Instantiating disk"ASMDISK3": done [root@node1 ~]# /usr/sbin/oracleasm listdisks ASMDISK1 ASMDISK2 ASMDISK3 [root@node1 ~]# ll /dev/oracleasm/disks/ total 0 brw-rw---- 1 oracle oinstall 8, 49 Dec 25 16:53 ASMDISK1 brw-rw---- 1 oracle oinstall 8, 65 Dec 25 16:53 ASMDISK2 brw-rw---- 1 oracle oinstall 8, 81 Dec 25 17:16 ASMDISK3 [root@node1 ~]#

且，重启操作系统之后：

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[root@node1 ~]# cat /etc/blkid/blkid.tab <device devno="0x0802"time="1388267332"type="swap" label="SWAP-sda2">/dev/sda2</device> <device devno="0x0801"time="1388267332"label="/" uuid="d39a302e-b52e-422b-a26a-b7d11fd491aa"sec_type="ext2" type="ext3">/dev/sda1</device> <device devno="0x1600"time="1388226554"label="20100727_095827"type="iso9660">/dev/cdrom</device> <device devno="0x1600"time="1388256454"label="20100727_095827"type="iso9660">/dev/hdc</device> <device devno="0x0851"time="1388256454"label="ASMDISK3" type="oracleasm">/dev/sdf1</device> <device devno="0x0841"time="1388256454"label="ASMDISK2" type="oracleasm">/dev/sde1</device> <device devno="0x0831"time="1388256454"label="ASMDISK1" type="oracleasm">/dev/sdd1</device> [root@node1 ~]#

3 故障原因：

之前，的确已经将设备/dev/sdf1创建成了ASM磁盘，然后，在操作系统级别将/dev/sdf硬盘的第1个分区sdf1直接删除后，重新创建了分区sdf1之后，再想将/dev/sdf1创建为ASM磁盘时，就遭遇到上述的错误信息！

4 如何避免：

正确的步骤，先通过/usr/sbin/oracleasm deletedisk命令来删除对应的ASM磁盘，然后在操作系统级别删除对应的硬盘分区，重新创建新分区之后，再在该硬盘分区上通过/usr/sbin/oracleasm createdisk命令创建ASM磁盘时，就不会出现上述错误了！

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日志标题:《Device ‘xx' is already labeled for ASM disk 的故障处理》
日志链接:http://www.oracleonlinux.cn/2014/01/device_is_already_labeled_for_asm_disk/
博客名称:OracleOnLinux