LINUX 11G RAC ASM磁盘组在线增加磁盘扩容

如下：

Host: scsi3 Channel: 00 Id: 09 Lun: 00

Vendor: VMware Model: Virtual disk Rev: 1.0

Type: Direct-Access ANSI SCSI revision: 02

7.分别在节点1,2查看/proc/scsi/scsi文件，此时节点1,2已识别到 Host: scsi3 Channel: 00 Id: 09 Lun: 00

[root@cqltjcpt1 ~]# more /proc/scsi/scsi | grep 09 Host: scsi3 Channel: 00 Id: 09 Lun: 00

[root@cqltjcpt2 ~]# more /proc/scsi/scsi | grep 09 Host: scsi3 Channel: 00 Id: 09 Lun: 00

8.在节点1上对sdj分区

[root@cqltjcpt1 ~]#fdisk /dev/sdj [root@cqltjcpt1 ~]#partprobe

9.节点1,2查看sdj1分区，以后成功识别

[root@cqltjcpt1 ~]# fdisk -l | grep sdj

Disk /dev/sdj: 536.9 GB, 536870912000 bytes

/dev/sdj1 1 65270 524281243+ 83 Linux

[root@cqltjcpt2 ~]# fdisk -l | grep sdj

Disk /dev/sdj: 536.9 GB, 536870912000 bytes /dev/sdj1

10.节点1上用grid用户登录，查看当前ASM磁盘组 [root@cqltjcpt1 ~]#su - grid

查看asm磁盘组

[grid@cqltjcpt1 ~]$sqlplus / as sysasm

SQL> select group_number,name,TOTAL_MB, FREE_MB from v$asm_diskgroup

GROUP_NUMBER NAME TOTAL_MB FREE_MB ------------ ----------------- ---------- ---------- 1 CQDATA 1547972 525323

2 FRA 511993 477058 3 OCR 6141 5741

11.查看asm磁盘

[root@cqltjcpt1 ~]# oracleasmlistdisks DATA1 DATA2 FRA OCR_VOT1 OCR_VOT2 OCR_VOT3

12.现在是要将500G的磁盘扩容到CQDATA的ASM的磁盘组中去 首先需要创建新的ASM磁盘

节点1上执行

[root@cqltjcpt1 ~]#oracleasmcreatedisk DATA3 /dev/sdj1 [root@cqltjcpt1 ~]#oracleasm scandisks [root@cqltjcpt1 ~]#oracleasm listdisks DATA1 DATA2

DATA3 FRA OCR_VOT1 OCR_VOT2 OCR_VOT3

节点2上执行

[root@cqltjcpt2 ~]# oracleasm scandisks Reloading disk partitions: done Cleaning any stale ASM disks... Scanning system for ASM disks... [root@cqltjcpt2 ~]#oracleasm listdisks DATA1 DATA2 DATA3 FRA OCR_VOT1 OCR_VOT2 OCR_VOT3

此时，节点1,2都已经识别到新的ASM磁盘DATA3