Enterprise Manager Newbie Q

Hello all,.
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
Windows 2008 R2
Last night one of the production users received an ORA-01652: unable to extend segment temp by 128 in tablespace TEMP error.

Therefore, my manager asked that I
“Please configure our database servers to notify us via email when critical thresholds are exceeded.

 This is a standard config option within enterprise manager”.
I have very little experience/exposure with EM. In fact, I found several terms that, in my view, all refer to the same thing (correct me if I'm wrong please), for example: "OEM Database Control", "OEM Grid Control" and the so-called capabilities of "The Business Service Management (BSM) of Oracle Enterprise Manager.

Are these different products/tools, or the different implementations of the OEM?

We are not a CAR shop. Is the term THAT GRID is also used to indicate a RAC environment?

I'm looking for a few good sources of 'How to use/configure OEM' information. Any suggestion would be appreciated.

I am looking to buy the following books, recommendations on these projects or others?

Oracle Enterprise Manager 10g Grid Control Handbook (Oracle Press) - Gruyter Werner
Oracle Enterprise Manager Grid Control 11g R1: Business Service Management - Ashwin Kumar Kinihira, Govinda Raj malika

It seems that there is a repository of data for the OEM. Is it necessary in general? Can I configure things such that I can get notifications by e-mail when tablespace (s) exceed a certain threshold of use without the repository?

I know that I've rambled on some, thank you for your patients.


Thanks for your time,
Bob

I can answer some of your questions...

"OEM Database Control" is essentially "Oracle Enterprise Manager for a single data base". "OEM Grid Control" (or the current version, "OEM Cloud Control" is essentially "Oracle Enterprise Manager for several databases", as well as the possibility for the host of the server monitor, web applications and quite a few other non-base of data.) They are similar but different products. Control of database gets usually installed with the database software itself, while the control of grid/cloud is a completely separate a stand-alone product installation. I don't know what the BSM forest made reference to.

Control of the database uses the monitored database as its data repository (in the SYSMAN schema). Grid control also requires a repository, but you are allowed to install a separate, free of charge license database to serve as a repository for the grid control as long as you don't use for something else (other than as a catalogue of RMAN recovery). If you don't want to install a different database to serve as a control of the grid/cloud, you can use an existing database, but it is generally not recommended.

Control of the database or grid/cloud control can operate without a repository. One of them will allow you to set up alert notifications when tablespace (s) exceed your thresholds configured, or when several other events happen (DB stops, complete file system, CPU too high, too many sessions, load what you want).

The term 'Grid' is used in 'Oracle Grid Infrastructure', which is part of the collection package that supports the CAR. 'Grid' is just a marketing term, RAC and Grid Control are orthogonal concepts, nor requires the other but they can also be used together.

I can't comment on the books.

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