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# 查看当前配置(oracle、grid 都可以)
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sqlplus / as sysdba
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col path for a40
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set lin 120 pages 100
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select group_number,path,total_mb,free_mb from v$asm_disk order by 1,2;
select group_number,name from v$asm_diskgroup order by 1;
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# 查看asm磁盘组使用率
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col name for a15
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select group_number,name,trunc((total_mb-free_mb)/1024) used_g,trunc(total_mb/1024) total_g, trunc(free_mb/1024) free_g,round((total_mb-free_mb)/total_mb*100,2) used_percent from v$asm_diskgroup order by used_percent desc ;
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# 先备份
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cp /etc/udev/rules.d/99-oracle-asmdevices.rules /tmp/99-oracle-asmdevices.rules_$(date " %y%m%d%h%m%s")
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# 取出还没授权的新盘,编辑好直接插入规则文件
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for i in `cat /proc/partitions | awk {'print $4'} |grep emcpower`; do val=`/sbin/blockdev --getsize64 /dev/$i` ; val2=`expr $val / 1073741824`; echo "/dev/$i: $val2 `/usr/lib/udev/scsi_id -gud /dev/$i`" ; done
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# 将描述信息存放到临时文件
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ls -l /dev/emcpower*
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rm -fr /tmp/a.rules
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for i in ` grep emcpower /proc/partitions|awk {'print $4'} ` ;
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do
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echo "kernel==\"emcpower*\",subsystem==\"block\", program==\"/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/\$name\", result==\"`/usr/lib/udev/scsi_id -gud /dev/$i`\", symlink =\"asmdisk/arch05\", owner=\"grid\", group=\"asmadmin\", mode=\"0660\" " >> /tmp/a.rules ;
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done
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cat /tmp/a.rules
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# 手工检查修改一下设备名称,将arch05改为实际需要的
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vi /etc/udev/rules.d/99-oracle-asmdevices.rules
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生效
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/sbin/udevadm control --reload-rules
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/sbin/udevadm trigger --type=devices --action=change
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ls -l /dev/asmdisk/* 确认是否有新的asm磁盘,且属主正确
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如果没问题直接复制到节点2
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scp /etc/udev/rules.d/99-oracle-asmdevices.rules node2:/etc/udev/rules.d/99-oracle-asmdevices.rules
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执行上面两个 udevadm 命令,然后ls 看是否和主机1一样
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添加到磁盘组(grid用户)
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asmcmd lsdsk --candidate -p
图形方式
asmca
sqlplus / as sysdba
alter diskgroup datadg rebalance power 11;
手工方式
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sqlplus / as sysdba
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alter diskgroup archdg add disk '/dev/asmdisk/arch05','dev/asmdisk/arch06','dev/asmdisk/arch07' rebalance power 11;
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查进度
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col error_code for a50
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set lin 300 pages 100
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select group_number,operation,state,power,actual,sofar,est_work,est_minutes,error_code,round(sofar/ est_work*100,1) per from v$asm_operation;
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