Friday Aug 31, 2012

Ops Center and Oracle Solaris 11

There have been a few questions about Ops Center and S11 recently. People have been trying to discover and update S11 from Enterprise Controllers installed on S10 or Linux, and running into problems, and wondering what the solution is.

Well, the solution is that, if you want to be able to provision and update S11 OSes, and manage them using Agent Controllers, you need to install your Enterprise Controller and at least one Proxy Controller on S11 systems. The Oracle Solaris and Linux install guides both note this in the chapters that cover preparing your environment.

Technically, if you have an S11 Proxy Controller you can at least discover and monitor S11 systems. However, features like the automated installer and the image packaging system (for OS updates) can only be used through Ops Center if your Enterprise Controller is installed on S11 as well.

Thursday Aug 23, 2012

Which Proxy Controller is managing your assets?

I got an interesting question about Proxy Controllers. The question was, if you have an asset on a network and two Proxy Controllers can access that network, can you control which Proxy Controller manages the asset?

Well, you do have some control, but before I get into that, it's worth noting that the Proxy Controller-Agent communication works differently in 12c than it did in prior versions of Ops Center. In older versions, an Agent was associated with one specific Proxy Controller, and if the Proxy Controller failed the asset's connection to Ops Center was broken. In 12c, if a Proxy Controller fails, you can migrate the assets to any other Proxy Controller with access to their network, keeping the assets managed.

So, in 12c assets are not as strongly tied to specific Proxy Controllers. When you try to discover an asset, Ops Center looks at which Proxy Controllers can access the asset, and picks the one with the least load.

However, you do have some options for controlling what asset goes to what Proxy Controller. First, you can put a Proxy Controller into maintenance mode by selecting the Proxy Controller and clicking Put in Maintenance Mode; this doesn't stop it from managing its existing assets, but it stops it from taking on new ones.

You can also set different power levels for your Proxy Controllers. Select the Enterprise Controller's Configuration tab, then select the Proxy Management subsystem. If you want Proxy Controller A to do twice the work as Proxy Controller B, for instance, set A's relative power to 2 and B's to 1.

The Feature Reference Guide goes into more detail about discovery, and the Administration Guide gives you more information about Enterprise Controller settings and asset migration.

Tuesday Aug 07, 2012

Time zones in Ops Center

I just saw an interesting question about how time data is displayed in Ops Center. A lot of people have environments that span multiple time zones, and the people monitoring those systems might be on the other side of the world. So, when you log in, and Ops Center says that System X got a firmware update at 10 am, what does that mean?

It means 10 am in the time zone that you're in. The UI adjusts all times to the local time from which you are viewing it. In some cases this won't match the time used by the systems themselves, but it makes things consistent in the UI.

Wednesday Aug 01, 2012

Changing Management Credentials

I got a question about management credentials, which are sets of login credentials used to discover and manage assets. If you manage a lot of systems with the same set of credentials, being able to change those credentials in one place can save a lot of time. But, the question was:

"I'm looking for documentation about updating management credentials. I looked through the Ops Center Doc library and found nothing. Can you point me toward anything?"

Well, it's in there, but it must not have been where you expected. In the Feature Reference Guide, there's a chapter on Asset Management, which includes sections about creating and editing management credentials.


This blog discusses issues encountered in Ops Center and highlights the ways in which the documentation can help you


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