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Re: nomenclature standardization: where best to put oraInventory?

From: <J.Velikanovs_at_alise.lv>
Date: Tue, 10 Aug 2004 23:35:19 +0300
Message-ID: <OFD2439895.AFD3611C-ONC2256EEC.007113B6-C2256EEC.00711B0C@alise.lv>


Mark,
.
You have asked question on conceptual level. I haven’t answer to the question.
.
But I would like to share our experience. We are trying to keep one oraInventory directory per ORACLE_HOME. When installation is done, then we moving oraInventory to secure place. In case we need to patch particular OH, we moving oraI back. .
The reasons for so complex staff are
- to keep OH independent as possible
- in case of problems with oraI only one OH is involved .
It is seems not correct one method for Oracle installations maintenance, but it is very practical. Especially have knowledge how reliable OUI can be.
.
Jurijs

On 10.08.2004 19:35:42 oracle-l-bounce wrote:

>Level setting:
>
>I'm writing this in (L)unix context, provide your own translation to
>convicted monopolist based systems.
>
>FTFM: One oraInventory per node (aka system, aka cluster iff you've got
>cluster shared software), pointed at by /etc/oraInst.loc
>
>FTFM: You can have multiple ORACLE_BASE installations on a node. (For
>example to be managed by different owners and/or groups).
>
>FTFM: "Oracle recommends that you choose the following path:
>
>/oracle_base/oraInventory
>
>So, clearly this does not bind very well, and is subject to disaster, if,
>for example, a project based ORACLE_BASE is relocated to a different
>machine. Even if the obvious opportunity for disaster does not occur, you
>are left with keeping an obsolete ORACLE_BASE just to hold oraInventory.
>
>Further, if you have multiple oracle_bases in the first place to separate
>ownership, the additional owners of oracle_bases will have to be able to
>write there. (I don't have a solution to that problem, btw, even if
>oraInventory lived in a place not bound to any oracle_base.)
>
>Now I suppose changing the contents of /etc/oraInst.loc could be used to
>relocate oraInventory, although it is not clear to me that is a supported
>workaround.
>
>So I'm thinking that locating oraInventory subsidiary to any individual
>ORACLE_BASE is a crock, and I'm toying with alternatives:
>
>/opt/oraInventory
>/node/oraInventory
>
>What all y'all think?
>
>I would also be thinking along these lines for the CRS Home directory,
>except that FTFM (B10766-02, p 5-20),
>
>"The directory that you specify must be a subdirectory of the Oracle Base
>directory." [In reference to CRS Home]
>
>Now in the case of the free form grid architecture, this really gives me
>pause. So let's say I have node X, that for purposes of grid services may
>deploy instances supporting database A and database B which are managed
by
>different DBA groups. There is only one CRS Home per node, and it must be
in
>"THE" Oracle Base directory. (emphasis on "THE" is mine.) Now how the
duel
>is arranged between group A DBAs and group B DBAs to allocate node X to
them
>and bring up their instance(s) is not the current topic. Presumably this
can
>be worked out peaceably.
>
>However, will it even work to have CRS in a different ORACLE_BASE?
Obviously
>the overhead to test this is moderately high, so if anyone has already
>undertaken the complexities of nodes belonging to multiple grids (aka
RACs,
>but really I think this only becomes an issue in 10g when you can
actually
>grid up (RAC) nodes that are not members of the same cluster.)
>
>Has anyone cooked up anything good for locating CRS Home?
>
>Thanks,
>
>mwf
>
>
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Received on Tue Aug 10 2004 - 15:49:18 CDT

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