Re: Exadata + OMCS
- From: Jeremy Schneider <jeremy.schneider@xxxxxxxxxxxxxx>
- To: Chris Stephens <Chris.Stephens@xxxxxxx>
- Date: Tue, 13 Jan 2015 15:57:58 -0600
the only reason i've ever heard for different OS users would be
security - doesn't sound like that applies in your case. also i'm not
sure i've ever personally seen a production setup like that. i'm sure
it's out there, but i have seen a lot of different environments and
didn't come across it (worked with at least a couple dozen different
companies in my consulting days and a few really big ones as an
employee).
strategy for oracle_home and database naming is a little more nuanced.
besides the advantages, there are also drawbacks to indicating purpose
in the database name. personally i prefer to stay away from that too.
likewise with shared oracle_homes, though i think the drawbacks are
fewer here and i tend to prefer shared homes.
if the buck stops with them when it comes to managing the
environments, then they definitely have a strong interest in uniform
standards across all the environments they manage. speaking as an ops
guy who manages a lot of databases myself, even if the standards
aren't perfect it's better if all the systems match to those imperfect
standards. i've made a lot of changes to the standards here over time
where i am but it's a very slow, carefully managed process.
you should keep a list of the issues and discuss them with your
management. to the extent that they impact your business, management
can discuss it with their counterparts at the managed services
organization.
--
http://about.me/jeremy_schneider
On Tue, Jan 13, 2015 at 3:05 PM, Stephens, Chris <Chris.Stephens@xxxxxxx> wrote:
> My employer went big with Oracle engineered systems in the last year and due
> to lack of in-house experience, contracted with Oracle Managed Cloud
> Services to assist in managing the environment which consists of Exalytics,
> Exalogic, Exadata.
>
>
>
> I get the impression that it's not common for OMCS to manage systems that
> reside in a customer's data centers vs at Oracle data centers but that's
> what we have.
>
>
>
> At this point, all I care about are the Exadata machines which are currently
> just two 1/4 racks.
>
>
>
> After recently managing to get some access to the dev/test Exadata machine,
> I've discovered that they are doing a number of things which I believe will
> become a maintenance nightmare down the road. ...probably about the same time
> we bring administration of these machines back in house
>
>
>
> Each database (currently 9) is installed under a different OS user under a
> unique Oracle home. They claim this is necessary so that each database can
> be patched separately and maintained at different versions. I strongly
> prefer the default to be all databases reside in a common home under a
> common OS user (oracle) with case by case decisions being made to migrate
> databases to a new home for legitimate business reasons.
>
>
>
> Actually, I would prefer more discretion in the decision to create a new
> database for each new application but that's more my company's fault vs
> OMCS.
>
>
>
> OMCS is also steamrolling us with their database naming conventions which
> appear to start with P|D|T followed by my employers initials followed by
> random numbers or letters with include upper case O's and zeros. This is
> infuriating. They are doing this to make it easier for them to manage our
> databases in their environment. These are our databases and we would like
> names that give some indication of their purpose. The ending in a number is
> a pain in the butt with RAC databases and the letter O vs number 0 is
> killing me too. They say this isn't negotiable.
>
>
>
> I have several more complaints but I'll refrain from making this too long.
>
>
>
> What do you think of these standards? Is there anyone out there that uses
> OMCS to manage their Exadata environment? Any comments on how that is
> going?
>
>
>
> Any comments/input are appreciated.
>
>
>
> Chris
>
>
>
>
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