实战分享：如何在HP-UX上高效扩容Oracle 12c RAC ASM磁盘

superman超哥2024-11-28 21:15

文章目录

    • [Oracle 12c RAC ASM磁盘扩容 for HP-UX](#Oracle 12c RAC ASM磁盘扩容 for HP-UX)
      • 一、扩容原因
      • 二、扩容前信息
      • 三、扩容详细步骤
        • [3.1 存储划分LUN，映射到Oracle 12c RAC相关主机组](#3.1 存储划分LUN，映射到Oracle 12c RAC相关主机组)
        • [3.2 扫描查看磁盘](#3.2 扫描查看磁盘)
        • [3.3 检查两节点间的磁盘盘符是否一致](#3.3 检查两节点间的磁盘盘符是否一致)
        • [3.4 以一个节点为准同步磁盘盘符](#3.4 以一个节点为准同步磁盘盘符)
        • [3.5 更改磁盘属主、权限](#3.5 更改磁盘属主、权限)
        • [3.6 查看ASM磁盘组名称及路径（只需在节点1中操作即可）](#3.6 查看ASM磁盘组名称及路径（只需在节点1中操作即可）)
        • [3.7 为DATA磁盘组新增ASM磁盘](#3.7 为DATA磁盘组新增ASM磁盘)
        • [3.8 查看新增ASM磁盘操作是否完成](#3.8 查看新增ASM磁盘操作是否完成)
        • [3.9 查看ASM磁盘组名称及路径（只需在节点1中操作即可）](#3.9 查看ASM磁盘组名称及路径（只需在节点1中操作即可）)
        • [3.10 将DATA组的rebalance从10修改为1](#3.10 将DATA组的rebalance从10修改为1)
      • 四、扩容后信息查看确认

Oracle 12c RAC ASM磁盘扩容 for HP-UX

一、扩容原因

数据库存储空间不足。

二、扩容前信息

DATA磁盘组剩余0.28G

bash 复制代码 
# su - grid
$ sqlplus / as sysasm
SQL> select group_number,name,total_mb,free_mb from v$asm_diskgroup;

三、扩容详细步骤

3.1 存储划分LUN，映射到Oracle 12c RAC相关主机组

略！

3.2 扫描查看磁盘
bash 复制代码 
# ioscan -fCdisk
# ioscan -m dsf
3.3 检查两节点间的磁盘盘符是否一致
bash 复制代码 
# scsimgr -p get_attr all_lun -a wwid -a device_file -a hw_path | sort -n|grep disk
0x60060e8005be45000000be4500000540:/dev/rdisk/disk116:64000/0xfa00/0x186
3.4 以一个节点为准同步磁盘盘符

​ 如果一致，跳过此步骤。

​ 以disk116更改成disk600为例：

bash 复制代码 
# scsimgr -p get_attr all_lun -a wwid -a device_file -a hw_path | sort -n|grep disk|grep 0x60060e8005be45000000be4500000540|awk -F ":" '{print $NF"    disk    " NR+599}'>/tmp/infile

#cat /tmp/infile
64000/0xfa00/0x186    disk    600

# ioinit -f /tmp/infile

# ioscan -fCdisk
# ioscan -m dsf

问题现象：

bash 复制代码 
ioinit: Instance number 350 already exists for class disk.
Input line 1:  64000/0xfa00/0x43 disk 350

解决办法：

bash 复制代码 
其中procedure I比较简单，但并不总是好用，最彻底的还是procedureII。 另外，建议大家先做一个系统备份，这些方法还是有一点危险性的。

Procedure I
-----------
Default procedure, requires one reboot and works without additional tools.

1. Extract a configuration template from the current ioscan output.
Execute the following command:

# ioscan -f | grep -e INTERFACE -e DEVICE |
grep -v target |
awk '{print $3, $1, $2}' > /infile

2. Edit /infile and change the ext_bus and lan instances as desired.
No class is allowed to get more than one line for the same instance!

3. Bring down the system gracefully to run level 1.

# init 1

4. Apply the ioconfig change:

# /sbin/ioinit -f /infile -r

The system will reboot immediately if the change is successful.
Warnings like 'Input is identical to kernel' can be ignored.

If unsuccessful, the most likely error to happen is:
"ioinit: Instance number X already exists for class XXX"

The problem is that your desired instance assignment conflicts with
an existing instance number. If that instance is bound to hardware
that is no longer visible in ioscan, then you are in trouble and
need to perform. the Procedure II or III.

5. Once the system reboots, verify that all the instance numbers
were changed as expected. It may be necessary to re-import volume
groups to ensure that /etc/lvmtab contains the correct
entries. The lan configuration may need to be changed also.


Procedure II
------------
Reliable, requires two reboots and works without additional tools.

1. Extract a configuration template from the current ioscan output.
Execute the following command:

# ioscan -f | grep -e INTERFACE -e DEVICE |
grep -v target |
awk '{print $3, $1, $2}' > /infile

Make sure to store infile to the root file system!

2. Edit /infile and change the ext_bus and lan instances as desired.
No class is allowed to get more than one line for the same instance!

3. Move away the current ioconfig files and Shutdown/Reboot:

# mv /stand/ioconfig /stand/ioconfig.sav
# mv /etc/ioconfig /etc/ioconfig.sav
# shutdown -ry 0

4. Due to the missing ioconfig files the system will come to an
ioinitrc prompt. Now recreate new ioconfig files from scratch.
This prevents you from running into possible assignment conflicts.

(in ioinitrc)# /sbin/ioinit -c

5. Apply the ioconfig change with your prepared infile:

(in ioinitrc)# /sbin/ioinit -f /infile -r

The system will reboot again now if the change was successful.
Warnings like 'Input is identical to kernel' can be ignored.

6. Once the system reboots, verify that all the instance numbers
were changed as expected. It may be necessary to re-import volume
groups to ensure that /etc/lvmtab contains the correct
entries. The lan configuration may need to be changed also.


Procedure III
-------------
Reliable, requires one reboot and needs the unsupported ioconfig2infile tool.
Since the infile is directly extracted from the current ioconfig you get all
mappings, even for hardware that is not longer visible in ioscan.

1. Extract a configuration template using ioconfig2infile:

# ioconfig2infile /etc/ioconfig >/infile

2. Edit /infile and change the ext_bus and lan instances as desired.
No class is allowed to get more than one line for the same instance!

3. Bring down the system gracefully to run level 1.

# init 1

4. Apply the ioconfig change:

# /sbin/ioinit -f /infile -r

The system will reboot immediately if the change is successful.
Warnings like 'Input is identical to kernel' can be ignored.

5. Once the system reboots, verify that all the instance numbers
were changed as expected. It may be necessary to re-import volume
groups to ensure that /etc/lvmtab contains the correct
entries. The lan configuration may need to be changed also.
3.5 更改磁盘属主、权限
sql 复制代码 
# chown grid:asmadmin /dev/rdisk/disk600
# chmod 660 /dev/rdisk/disk600
3.6 查看ASM磁盘组名称及路径（只需在节点1中操作即可）
sql 复制代码 
# su - grid
$ sqlplus / as sysasm
SQL> col name for a15
SQL> col path for a30
SQL> select name,path from v$asm_disk;
3.7 为DATA磁盘组新增ASM磁盘

为DATA磁盘组新增ASM磁盘disk600，并将DATA组的rebalance修改为10（只需在节点1中操作即可）：

sqlite 复制代码 
# su - grid
$ sqlplus / as sysasm
SQL> alter diskgroup DATA add disk '/dev/rdisk/disk600' rebalance power 10;

**备注：**此处必须以sysasm身份操作，否则会提示ORA-15032和ORA-15260错误。

3.8 查看新增ASM磁盘操作是否完成
sql 复制代码 
SQL> select operation,est_minutes from v$asm_operation;

备注：全部为0时表示操作完成

3.9 查看ASM磁盘组名称及路径（只需在节点1中操作即可）
sql 复制代码 
# su - grid
$ sqlplus / as sysasm
SQL> col name for a15
SQL> col path for a30
SQL> select name,path from v$asm_disk;
3.10 将DATA组的rebalance从10修改为1
sql 复制代码 
SQL> alter diskgroup DATA rebalance power 1;

四、扩容后信息查看确认

sql 复制代码 
# su - grid
$ sqlplus / as sysasm
SQL> select group_number,name,total_mb,free_mb from v$asm_diskgroup;

原文链接：https://mp.weixin.qq.com/s?__biz=MzkxNzI1OTE3Mw==\&mid=2247493614\&idx=1\&sn=9cda31f4bf5e188e2902acb3a0ef4a00\&chksm=c141f124f63678322f8b72744712560380341db64177ee37e53b44773020ce432aad7b55758f#rd

👍 点赞，你的认可是我创作的动力！

⭐️ 收藏，你的青睐是我努力的方向！

✏️ 评论，你的意见是我进步的财富！

相关推荐
寒山李白3 小时前
MySQL安装与配置详细讲解
数据库·mysql·配置安装
文牧之4 小时前
PostgreSQL 的扩展pg_freespacemap
运维·数据库·postgresql
deriva4 小时前
某水表量每15分钟一报，然后某天示数清0了，重新报示值了 ，如何写sql 计算每日水量
数据库·sql
Leo.yuan5 小时前
数据库同步是什么意思？数据库架构有哪些？
大数据·数据库·oracle·数据分析·数据库架构
Kookoos6 小时前
ABP VNext 与 Neo4j：构建基于图数据库的高效关系查询
数据库·c#·.net·neo4j·abp vnext
云之兕6 小时前
MyBatis 的动态 SQL
数据库·sql·mybatis
gaoliheng0066 小时前
Redis看门狗机制
java·数据库·redis
?ccc?6 小时前
MySQL主从复制与读写分离
数据库·mysql
远方16097 小时前
10-Oracle 23 ai Vector Search 概述和参数
人工智能·oracle
会飞的Anthony7 小时前
数据库优化实战分享：高频场景下的性能调优技巧与案例解析
数据库
热门推荐
01YOLOv8入门 | 重要性能衡量指标、训练结果评价及分析及影响mAP的因素【发论文关注的指标】02KGG转MP3工具|非KGM文件|解密音频03从零安装 LLaMA-Factory 微调 Qwen 大模型成功及所有的坑04【无人机】无人机通信模块，无人机图数传模块的介绍，数传，图传，图传数传一体电台，05【SpeedAI科研小助手】2分钟极速解决知网维普重复率、AIGC率过高，一键全文降！文件格式不变，公式都保留的！06DeepSeek各版本说明与优缺点分析07神经网络架构KAN确实具有一些独特的特点及底层原理和应用场景08VMware虚拟机安装Win7专业版保姆级教程（附镜像包）09组基轨迹建模 GBTM的介绍与实现（Stata 或 R）10柬埔寨语翻译通App，一款真正实现高棉语翻译、语音识别和中柬双语无障碍交流的应用程序。