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oracle 9i 有必要做增量备份吗?
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Chan Qian  
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 More options Jun 3, 5:19 am
From: Chan Qian <sin...@gmail.com>
Date: Wed, 3 Jun 2009 17:19:00 +0800
Subject: oracle 9i 有必要做增量备份吗?

如题只是一个大概10G 的数据库,增量备份是否和全备份时间一样久呢

Sincerely,
Chan Qian.

Mark Twain <http://www.brainyquote.com/quotes/authors/m/mark_twain.html>  -
"There is no sadder sight than a young pessimist."


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Discussion subject changed to "答复: oracle 9i 有必要做增量备份吗?" by frank...@sz.cntrans.cn
frank...@sz.cntrans.cn  
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 More options Jun 3, 5:27 am
From: <frank...@sz.cntrans.cn>
Date: Wed, 3 Jun 2009 17:27:36 +0800
Local: Wed, Jun 3 2009 5:27 am
Subject: 答复: oracle 9i 有必要做增量备份吗?

第一次做base backup的时间久一点,后面的时间,根据增量备份的不同有些差别,但
是都会比全备份时间少。你的数据库算是比较小了,还是做全备份比较好,你的备份不
会占用太大的空间。如果做增量备份,恢复起来麻烦一些。

  _____  

发件人: Oracle-Internal@googlegroups.com
[mailto:Oracle-Internal@googlegroups.com] 代表 Chan Qian
发送时间: 2009年6月3日 17:19
收件人: Oracle-Internal@googlegroups.com
主题: oracle 9i 有必要做增量备份吗?

如题

只是一个大概10G 的数据库,增量备份是否和全备份时间一样久呢

Sincerely,
Chan Qian.

Mark Twain <http://www.brainyquote.com/quotes/authors/m/mark_twain.html>   -
"There is no sadder sight than a young pessimist."


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Discussion subject changed to "oracle 9i 有必要做增量备份吗?" by vufuture
vufuture  
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 More options Jun 3, 5:29 am
From: vufuture <vufut...@gmail.com>
Date: Wed, 3 Jun 2009 17:29:12 +0800
Local: Wed, Jun 3 2009 5:29 am
Subject: Re: oracle 9i 有必要做增量备份吗?

显然不会一样长,但是10G的库没有必要增量吧,全备份也用不了多久!
Best regards!

                                         vufuture

MSN:vufut...@hotmail.com<MSN%3Avufut...@hotmail.com>

Gtalk:vufut...@gmail.com<Gtalk%3Avufut...@gmail.com>

2009/6/3 Chan Qian <sin...@gmail.com>


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Chan Qian  
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 More options Jun 3, 5:34 am
From: Chan Qian <sin...@gmail.com>
Date: Wed, 3 Jun 2009 17:34:25 +0800
Local: Wed, Jun 3 2009 5:34 am
Subject: Re: oracle 9i 有必要做增量备份吗?

有道理,改成全备份了,备份完后打个包ftp 到其他空闲机器上去,okay
Sincerely,
Chan Qian.

H. L. Mencken <http://www.brainyquote.com/quotes/authors/h/h_l_mencken.html>
- "Nobody ever went broke underestimating the taste of the American
public."

2009/6/3 vufuture <vufut...@gmail.com>


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tian xie  
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 More options Jun 3, 11:24 pm
From: tian xie <xietian1...@yahoo.com.cn>
Date: Thu, 4 Jun 2009 11:24:42 +0800 (CST)
Local: Wed, Jun 3 2009 11:24 pm
Subject: Re: oracle 9i 有必要做增量备份吗?

自己试一下就知道了

--- 09年6月3日,周三, Chan Qian <sin...@gmail.com> 写道:

      ___________________________________________________________
  好玩贺卡等你发,邮箱贺卡全新上线!
http://card.mail.cn.yahoo.com/

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lei liu  
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 More options Jun 3, 11:59 pm
From: lei liu <chs...@gmail.com>
Date: Thu, 4 Jun 2009 11:59:58 +0800
Local: Wed, Jun 3 2009 11:59 pm
Subject: Re: oracle 9i 有必要做增量备份吗?

个人认为,是否采用增量备份,不是由你的数据库版本决定的,当然也不是有你的数据量大小所决定的,况且数据量是会逐渐增加的。首先应该选择适合的备份策略,尽可 能降低对性能的损耗,减小恢复时间,才是王者。

当前还是制定一个适合的备份策略吧!

On 6/3/09, Chan Qian <sin...@gmail.com> wrote:


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Discussion subject changed to "答复: oracle 9i 有必要做增量备份吗?" by eygle
eygle  
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 More options Jun 4, 1:58 am
From: eygle <eygle....@gmail.com>
Date: Wed, 3 Jun 2009 22:58:05 -0700 (PDT)
Local: Thurs, Jun 4 2009 1:58 am
Subject: Re: 答复: oracle 9i 有必要做增量备份吗?
10个G的库,如果夜间不忙,经常做全备份就可以了。

我有个客户一个2T的9i数据库,通常全备份大约需要6个小时左右,增量备份也需要5小时左右,时间差异不大,但是增量备份的存储耗用不高,可以节省存
储。

9i的增量备份效率较差,如果数据库是10g,启用新特性,效果还不错。

On 6月3日, 下午5时27分, <frank...@sz.cntrans.cn> wrote:


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jame tong  
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 More options Jun 23, 5:16 am
From: jame tong <jamet...@gmail.com>
Date: Tue, 23 Jun 2009 17:16:17 +0800
Local: Tues, Jun 23 2009 5:16 am
Subject: Re: 答复: oracle 9i 有必要做增量备份吗?

关键还是看两种策略之间的成本比较, 以及这个库需要提供的Service Agreement Level吧?

2009/6/4 eygle <eygle....@gmail.com>


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