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Re: Help! Oracle server clustering

From: Pete Sharman <peter.sharman_at_oracle.com>
Date: 26 Jun 2002 16:23:42 -0700
Message-ID: <afdidu0ohb@drn.newsguy.com>


In article <1b9e9988.0206261404.4b4aee64_at_posting.google.com>, thuthaot_at_hotmail.com says...
>
>Pete Sharman <peter.sharman_at_oracle.com> wrote in message
>news:<afcvee02cid_at_drn.newsguy.com>...
>> In article <1b9e9988.0206260809.4efe5df4_at_posting.google.com>,
>> thuthaot_at_hotmail.com says...
>> >
>> >I am looking to have my 8i oracle server run on NT to two compaq Win2K
>> >servers that will back-up for each other. I dont' know waht method I
>> >use use and what are the advantages/disadvantages?
>> >
>> >1. Clustering server or server-mirroring?
>> >2. what tools do I need?
>> >3. Does Oracle 8i support clustering?
>> >4. Any suggestions on using Oracle on Win2K clustering on Fault
>> >Tolerance Features?
>> >
>> >Thanks for any of your feedbacks
>> >thao
>>
>> Need to know more before we can give firm suggestions:
>>
>> 1. Are the two boxes clustered or not?
> I want to have them clustered but not sure if it is supported by
>Oracle 8i which we are using

Clustering is an OS thing. If the OS supports clustering of the two boxes, then Oracle can run in a clustered configuration.
>
>>2. What are you trying to protect against (machine failure, disaster recovery,
>> etc.)?
> Yes, extra redundancy

Still doesn't tell me what form of redundancy. Machine failure and disaster recovery are two completely different requirements. You can't use a single cluster to provide both.
>
>>3. Do you want the second box to be used in an active-active configuration, or
>> is active-standby what you're looking at?
> What are the differences? I guess I may want active-active
>config. How do I do that? and what tools do I need?

Active-active means users are connected to the database from both nodes of the cluster. In Oracle terms, that requires OPS in 8i, or RAC in 9i. Active-standby means only one node of the cluster is used for active database connections. The second node will be failed over to if there are problems with the first one. This is what Oracle FailSafe does in Oracle terms.
>
>
>>
>>Depending on the answers to the above, start investigating Parallel Server (RAC
>> would be a better option if you can upgrade to 9i) or Oracle FailSafe (NOT
>> Oracle Parallel FailSafe which is a different beastie).
> I will.
>
>Thanks
>thao

HTH. Additions and corrections welcome.

Pete

SELECT standard_disclaimer, witty_remark FROM company_requirements; Received on Wed Jun 26 2002 - 18:23:42 CDT

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