Recent Posts by Courtney Llamas

A few weeks ago, someone asked on the OTN forums how to alert on some of the JVM metrics such as ‘JVM Threads – Threads Started (since startup)’ using Enterprise Manager 12c (EM).    This is one of those few metrics that EM collects, but does not allow custom thresholds.    Let’s take a look at the metrics that EM collects on the WebLogic Server target. Read more... 

If you’re monitoring more than a handful of servers or databases in your Enterprise Manager 12c (EM), you have probably started creating groups to manage many targets together.   If you haven’t, this is one of the most critical aspects of setting up your EM to properly monitor and manage targets.  There are several use cases where you will want to perform a single action on multiple targets. Setting monitoring thresholds Granting privileges Sending notifications Applying...

<span id="XinhaEditingPostion"></span> Now that Enterprise Manager 12cR4 has been out for a little while, more people are getting around to upgrading their agents.  Since the monthly Patch bundles were released we already have a few Agent side patches that we want to apply to our newly upgraded agents.  I’ve written aboutsimplifying your agent patching before, but this feature still...

There was a conversation on twitter last week about available patches for Enterprise Manager (EM) 12.1.0.4, and it got a little deeper than 140 characters will allow.  I've written this blog to give a quick Patching 101 on the types of EM patches you might see and the details around how they can be applied. OMS Patches The core Enterprise Manager system is typically patched with the quarterly PSU patches (released Jan, Apr, July, Oct) or a one-off when directed by support for a...

Most user accounts these days have a password profile on them that automatically expires the password after a set number of days.   Depending on your company’s security requirements, this may be as little as 30 days or as long as 365 days, although typically it falls between 60-90 days. For a normal user, this can cause a small interruption in your day as you have to go get your password reset by an admin. When this happens to privileged accounts,such as the DBSNMP account...

Do you still maintain a spreadsheet with Database or Server contact or business unit ownership?  In Oracle Enterprise Manager 12c (EM) Target Properties allow you to store descriptive target information, such as Contact or Location, which can then be used in dynamic/administration group definition,reports, incident rules and notifications.   This blog will show you how you can better leverage the features of EM to store your configuration data and utilize it to the...

/span> If you are using Fast Recovery Area (FRA) for the archive destination and the destination is set to USE_DB_RECOVERY_FILE_DEST, you may notice that the Archive Area % Used metric does not trigger anymore. Instead you will see the Recovery Area % Used metric trigger when it hits a Warning threshold of 85% full, and Critical of 97% full. Unfortunately, this metric is controlled by the database and the thresholds cannot be modified (see MOS Note 428473.1 for more...

<span id="XinhaEditingPostion"></span> If you are using Fast Recovery Area (FRA) for the archivedes...

One of the most critical events to monitor on an Oracle Database is your archive area. If the archive area fills up, your database will halt until it can continue to archive the redo logs. If your archive destination is set to a file system, then the Archive Area % Used metric is often the best way to go. This metric allows you to monitor a particular file system for the percentage space that has been used. However, there are a couple of thingsto be aware of for this critical...