说明
本环境的asm磁盘是通过asmlib创建的，不适用于scsi的磁盘。
新增磁盘为/dev/xvdd
操作过程
分区
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[[email protected] ~]# fdisk /dev/xvdd
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x36af11d0.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-65270, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-65270, default 65270):
Using default value 65270
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[[email protected] ~]#
|
查看现有ASM磁盘
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[[email protected] ~]# oracleasm listdisks DATA DATA2 |
添加新的asm磁盘
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[[email protected] ~]# oracleasm createdisk DATA3 /dev/xvdd1 Writing disk header: done Instantiating disk: done [[email protected] ~]# oracleasm listdisks DATA DATA2 DATA3 [[email protected] ~]# |
查看数据库中记录的asm磁盘
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[[email protected] ~]# su - grid [[email protected] ~]$ sqlplus / as sysasm SQL*Plus: Release 12.2.0.1.0 Production on Thu Jan 11 19:42:07 2018 Copyright (c) 1982, 2016, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production SQL> select name, path, mode_status, state, disk_number,failgroup from v$asm_disk; NAME ------------------------------ PATH -------------------------------------------------------------------------------- MODE_ST STATE DISK_NUMBER FAILGROUP ------- -------- ----------- ------------------------------ /dev/oracleasm/disks/DATA3 ONLINE NORMAL 0 DATA_0000 /dev/oracleasm/disks/DATA ONLINE NORMAL 0 DATA_0000 NAME ------------------------------ PATH -------------------------------------------------------------------------------- MODE_ST STATE DISK_NUMBER FAILGROUP ------- -------- ----------- ------------------------------ DATA_0001 /dev/oracleasm/disks/DATA2 ONLINE NORMAL 1 DATA_0001 SQL> |
新增的asm磁盘为/dev/oracleasm/disks/DATA3
查看磁盘组名称
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SQL> select group_number,name,TOTAL_MB, FREE_MB from v$asm_diskgroup 2 ; GROUP_NUMBER NAME TOTAL_MB FREE_MB ------------ ------------------------------ ---------- ---------- 1 DATA 1023988 36588 SQL> |
DATA磁盘组就是要扩容的磁盘组
扩容DATA磁盘组
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SQL> alter diskgroup DATA add disk '/dev/oracleasm/disks/DATA3' rebalance power 10; Diskgroup altered. SQL> |
观察reblance
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SQL> select * from v$asm_operation; GROUP_NUMBER OPERA PASS STAT POWER ACTUAL SOFAR EST_WORK ------------ ----- --------- ---- ---------- ---------- ---------- ---------- EST_RATE EST_MINUTES ERROR_CODE CON_ID ---------- ----------- -------------------------------------------- ---------- 1 REBAL COMPACT WAIT 10 10 0 0 0 0 0 1 REBAL REBALANCE RUN 10 10 5531 82304 2268 33 0 1 REBAL REBUILD DONE 10 10 0 0 0 0 0 SQL> |
当没有输出时，则表明reblance完成
修改reblance power
1 |
ALTER DISKGROUP DATA REBALANCE POWER 1; |
原文地址：https://www.cnblogs.com/petewell/p/11601765.html
时间： 2024-11-06 03:34:23