How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
来源:互联网 发布:淘宝运费模板物流重量 编辑:程序博客网 时间:2024/05/17 04:36
How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
Modified 19-OCT-2010 Type BULLETIN Status PUBLISHED
--------------------------------------------------------------------
This article describes a solution that was used to resolve this
issue for another Oracle customer. As it relates to a third-party
product, Oracle does not guarantee that this resolution will work
for all customers using this or any other third-party product. The
appropriate third-party vendor should be contacted if there are any
questions or problems relating to this resolution or these errors.
--------------------------------------------------------------------
PURPOSE
This document is to show how to configure rman i/o block size to improve
backup/recover performance.
SCOPE & APPLICATION
This is intended for all RMAN users.
How to configure RMAN I/O block size to improve backup/recover performance:
===========================================================================
The I/O block size is the 'unit' RMAN reads and writes to the tape device.
Larger block size can improve backup/recover performance, especially
if the the database is large.
The default I/O block size is operating system and third party backup software
dependent, but can be changed from within RMAN. Use the allocate channel step:
ALLOCATE CHANNEL t1 TYPE 'sbt_tape' PARMS ="BLKSIZE=4194304"
This will allocate a channel for backup/recover with I/O block size 4M.
I/O block size can also be specified from EBU: use parameter tape_io_size in
backup/recover script.
References:
===========
Oracle8i Backup and Recovery Guide
Search Words:
=============
BLKSIZE RMAN TAPE_IO_SIZE
------------------------------------------------------------------------------
- How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
- How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
- How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
- Advise On How To Improve Rman Performance [ID 579158.1]
- Advise On How To Improve Rman Performance [ID 579158.1]
- Advise On How To Improve Rman Performance [ID 579158.1]
- RMAN Restore Database Slow / How To Improve RMAN Restore Performance [ID 467694.1]
- RMAN Restore Database Slow / How To Improve RMAN Restore Performance [ID 467694.1]
- RMAN Restore Database Slow / How To Improve RMAN Restore Performance [ID 467694.1]
- How to improve Java's I/O performance( 提升 java i/o 性能)
- How to improve ElementHost performance
- Java Tip 26: How to improve Java's I/O performance-如何提高java I/O性能
- What is a Flash Recovery Area and how to configure it ? (文档 ID 305648.1)
- What is a Flash Recovery Area and how to configure it ? (文档 ID 305648.1)
- How to Improve Query Performance - A Checklist
- How to improve web services performance
- pat 1055 how to improve the performance
- how to improve deep learning performance
- RMAN Restore Database Slow / How To Improve RMAN Restore Performance [ID 467694.1]
- 【I/O】Byte Streams
- flex打印系列教程四 理解FlexPrintJob
- Linux下*.tar.bz2等文件如何解压
- SQL对Xml字段的操作
- How to Configure RMAN I/O Block Size to Improve Backup and Recovery Performance [ID 107213.1]
- 不能修改“System Roots”钥匙串
- Advise On How To Improve Rman Performance [ID 579158.1]
- 汉字转换成拼音和获取汉字的首字母及ASSCI码的转换
- Protocol delegate
- Flash游戏开发性能优化
- 动态获取一个服务端控件的客户端ID
- python中最后一个基础知识点,面向对象
- bessie come home