Re: Oracle Clustering: RAC vs FailSafe

Thanks for all the inputs.

I wasn't really conserned about performance but rather admin effort and attention necessary. I guess with disks so cheap and the amount of space we have, archive log mode isn't quite the enslaving beast it used to be. We don't have a full time administrator and nightly exports to backup the data is enough. We are just looking for up time for the system and a platform that can allow the possibility of large growth in the future.

Thankss
Chuck

On Sat, 31 May 2003 15:30:49 GMT, Hans Forbrich <forbrich_at_telusplanet.net> wrote:

>"Charles M. Goehring" wrote:
>
>> We are covered by a site license for 9i and RAC and will be running on
>> Windows 2000 Advanced Sever. Hardware is Dell with a Dell SCSI RAID
>> box. The system includes Apache Web Server and Apache Tomcat.
>>
>> Deciding on RAC vs FailSafe and have several unanswered questions:
>>
>> Can both be operated without having to use Archive Log mode? I
>> thought FailSafe was based on using this, but now I'm not sure.
>
>Barring possibility of a documentation bug, consider the following:
>
>Manual - Oracle9i Real Application Clusters Administration
>Release 2 (9.2)
>Part Number A96596-01
>Chapter 6
>Section titled "Changing the Archiving Mode in Real Application Clusters"
>
>which states "After configuring your Real Application Clusters environment
>for RMAN, you can alter the archiving mode if needed. For example, if your
>Real Application Clusters database uses NOARCHIVELOG mode, then follow
>these steps to change the archiving mode to ARCHIVELOG mode:"
>
>(I question the wisdom of using NoArchiveLog mode, esp. - as Sybrand
>states - there should not be a [significant] performance hit in a tuned
>environment, but that is a separate discussion.)
>
>> Is RAC Guard a separate product or is it included with RAC? I
>> can't find it listed as a separate product on the Oracle Web site.
>
>The Product Family document at
>http://otn.oracle.com/products/oracle9i/pdf/9idb_rel2_prod_fam.pdf is a
>fairly explicit feature to version and feature to extra-cost-option
>matrix.
>
>RAC Guard is formally known as Real Application Cluster Guard - you may
>need to re-check using that name. I could not find it as a separate
>option either, and would probably conclude it is a feature that is
>included in RAC in the same way that Data Guard is included in the EE
>database license.
>
>However, only Oracle (your rep) can give the final answer.
Received on Sun Jun 01 2003 - 14:11:40 CDT