a*****o 发帖数: 136 | 1 For basic restore, rman is good and easy.
If DR, suggest using Oracle Data Guard |
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b*****r 发帖数: 239 | 2 RAC,RMAN,Dataguard,Tuning. |
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k*******z 发帖数: 2368 | 3 这是一个有趣的问题。这个server是only for reporting用的吗?看你的描述,好像是
直接在production跑。。。我随便讲讲,因为没有其他具体的信息。
首先,archive log是为恢复用的,如果有恢复的需要,就要保存它们,直到下一次全
备份。所以,要问你老板,是不是需要,如果是,要他给钱买磁盘,加空间进去。
接着,就是要多精确的备份,多快的恢复的问题。如果archive log多到影响总空间的
程度,估计恢复也要相当长的时间了。如果要好几个小时的话,是否考虑每天一个冷备
份,不要archive log mode?如果是直接在production上跑report,还会生出这么多的
中间表,你们最好还是改变一下。。。因为这会让你们的恢复非常慢。(除非这些表用
另外一个表空间,你们用rman backup,恢复的时候倒是可以skip指定的表空间。)data
guard/mv/stream等等都可以实现你们要的实时数据功能。
还有就是flash_recovery_area跟archive log没有关系。 |
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v*****r 发帖数: 1119 | 4 可以在一起,也可以分开。
你自己要先算算需要多大的 flash area,要不要用它存 backup 或 archive log.
我一般把 rman backup 和 archive log 都放在 flash area 里, 大概这么算
flash recover area size =
db backup size (depending on your backup choice, it will be at least one
full backup + size of differential backup pieces)
+ archive logs (depending on how many logs/days * number of days of
retention policy)
+ flash recovery logs (depending on flash_recovery_retention parameter). |
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s****y 发帖数: 581 | 6 Thanks a lot. As I expected. |
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T4 发帖数: 273 | 7 有没有人试过这个:
Computer A:
1)Open Oracle Standby database to read only;
2) then run rman back it up;
3) Move all the backup pieces to computer B
4) restore the controlfile and the database in computer B;
5)open the restored database as a standalone database; |
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T4 发帖数: 273 | 8 有没有人试过这个:
Computer A:
1)Open Oracle Standby database to read only;
2) then run rman back it up;
3) Move all the backup pieces to computer B
4) restore the controlfile and the database in computer B;
5)open the restored database as a standalone database; |
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w***a 发帖数: 313 | 10 还是看总体成本,我们这儿(不是中国)prod的数据库要是完蛋了,要赔款的,公司损
失巨大,所以什么都用上了,就是要保证万无一失。因此我们的PROD数据库是HA+DR,
而且还有每天RMAN备份到VTL上。非PROD的就省了很多。很多没有HA的,备份也马虎很
多,省钱啊。 |
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c*****d 发帖数: 6045 | 11 真的要气死了
就说昨天晚上吧
11pm 刚洗完澡要睡觉,pager叫了
是rman备份空间满了
五分钟搞定,睡觉
0:30 pager又响了
这回说undo空间满了
之后就每隔15分钟响一次
气死了
今天上班我第一件事就是改前一个烙印的pager script |
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y*****g 发帖数: 677 | 14 因为db2 简单好用性能好,
oracle的rman 有必要那么复杂么?
Db2 的backup db to /tmp 就搞定了。
从备份文件命名的方式比oracle 简单科学多了。
生活本不需要复杂的 |
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c*****d 发帖数: 6045 | 15 ** 这个职位不提供visa sponsorship **
公司在Austin TX,有on-call的要求,两周轮换carry pager
要求熟悉oracle database architecture and concept (80%), rman backup &
recovery (10%), performance tuning (5%), troubleshooting (5%)
email c*********[email protected] if you are interested |
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c*****d 发帖数: 6045 | 16 ** 这个职位不提供visa sponsorship **
公司在Austin TX,有on-call的要求,两周轮换carry pager
要求熟悉oracle database architecture and concept (80%), rman backup &
recovery (10%), performance tuning (5%), troubleshooting (5%)
email c*********[email protected] if you are interested |
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c*****d 发帖数: 6045 | 17 今天这位大哥又干一件nb事
非要改我们的rman备份脚本
结果不知道他怎么改的
备份文件全写到oracle binary的目录
文件系统马上就满了,哈哈 |
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c*****d 发帖数: 6045 | 18 今天这位大哥又干一件nb事
非要改我们的rman备份脚本
结果不知道他怎么改的
备份文件全写到oracle binary的目录
文件系统马上就满了,哈哈 |
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b*****r 发帖数: 239 | 20 You can convert to linux rac directly if you already have GI installed and
have shared storage available.
In step 1, you got the converted datafiles from windows, copied to shared
storage in you RAC environment.(you need step2 if you want to use ASM).
Since you got all datafiles, you can adjust the script generated during rman
convert to create control file for RAC. Also change the original spfile to
make it RAC ready. |
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B*****g 发帖数: 34098 | 22 周二参加我教第12部数据库在弗吉尼亚的发布会,粗谈感想
multitenant container database hold many pluggable databases
1.share resource and os (available when request)
2.easy maintenance, upgrade, patch (only do it at container database)
3.easy clone
4.OEM 12c will be labile for both level (container database and pluggable
databases)
5.Private cloud
6.Can be used as stand-alone db also
security
1.Data Redaction (realtime, comparing to Data Mask)
2.Audit Vault and Database Firewall
High Availability
1.enhance for Data guard,... 阅读全帖 |
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c*****d 发帖数: 6045 | 23 另外一个DC附近的DBA工作机会
两周前收到的email,不过我已经从了芝加哥的一个offer
Hi coolbid– We received your résumé earlier this year as a referral from
miniID for an Oracle DBA opening that we have. This role as re-opened and I
wanted to present it to you. Below are the full details. Please review
and let me know if this is something you would be available and interested
in discussing.
Thank you in advance for your time!
We have an immediate opening for a Senior Oracle DBA for a long term (1+
year) opportunity supporting ... 阅读全帖 |
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o********3 发帖数: 42 | 24 今天上午第一次参加现场面试,对方是一个能源公司,分别在XXXX和YYYY,大约有十几
个DBA,没有RAC和ogg,使用active data guard。离我家大约1小时车程,机会难得。
到达面试地点之前一直在做激烈的思想斗争。放弃还是不放弃?这真是问题。我是命令
自己的两条腿往前走,脑子里想像着自己被人扔出来的样子。进入之后我被领着做了短
暂参观,然后被带进一个小会议室,几分钟之后进来3个DBA,正式开始对我狂轰滥炸,
前后约一个小时,全部是技术问题。前面是泛泛而谈,后面比较重视技术细节和工作经
验。我坚持了半个小时后开始感觉明显力不从心,尤其是工作经验部分,很简单的问题
也无法流畅表达。但是面试完了我还是很开心的,至少自己没有轻易放弃,也算迈出了
第一步。以下是我回忆的部分问题。
What are the new features of 11g compared to 10g?
How do you use data guard and golden gate?
Tell me your experience about RAC performance tuning.
What ... 阅读全帖 |
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c*****d 发帖数: 6045 | 25 技术面试我能想起来的问题
1. SQL management base (SMB)
2. Dataguard failover and switchover
3. name a few Oracle wait events and describe them
4. nest loop/sort merge/hash join diff
5. how to run parallel query? how many sessions are there?
6. customer reports slow query. what can you do?
7. DR overview
8. SGA components and what are the impacts to the db performance?
9. how to use rman to backup? describe the steps to restore a db to another
db server |
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o********3 发帖数: 42 | 26 今天上午第一次参加现场面试,对方是一个能源公司,分别在XXXX和YYYY,大
约有十几个DBA,没有RAC和ogg,使用active data guard。离我家大约1小时车程,机
会难得。到达面试地点之前一直在做激烈的思想斗争。放弃还是不放弃?这真是问题。
我是命令自己的两条腿往前走,脑子里想像着自己被人扔出来的样子。进入之后我被领
着做了短暂参观,然后被带进一个小会议室,几分钟之后进来3个DBA,正式开始对我狂
轰滥炸,前后约一个小时,全部是技术问题。前面是泛泛而谈,后面比较重视技术细节
和工作经验。我坚持了半个小时后开始感觉明显力不从心,尤其是工作经验部分,很简
单的问题也无法流畅表达。但是面试完了我还是很开心的,至少自己没有轻易放弃,也
算迈出了第一步。以下是我回忆的部分问题。
What are the new features of 11g compared to 10g?
How do you use data guard and golden gate?
Tell me your experience about RAC performance tuning.
What ... 阅读全帖 |
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h***x 发帖数: 586 | 27 CALIFORNIA:
0000087272
SAS Programmer (12m)
Bachelor's or Masters in Computer Science or other relevant (Engineering)
degrees with 5+ years of pharmaceutical experience preferred- The work
experience should include at least two years of technical leadership in a
statistical programming environment in a pharmaceutical or biotechnology
environment including the analysis and reporting of clinical trial data-
Knowledge and application of p-values, confidence intervals, linear
regression analysis, ad... 阅读全帖 |
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