IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning

Chapter 4. Planning and monitoring tools 115

For performance-type gauges, if a metric selected for display is associated with a threshold

enabled for checking, the current threshold properties are also displayed in the gauge window

and are updated each time the gauge data is refreshed.

Database services for managing the collected performance data

The performance data collected from the supported devices is stored in a DB2 database.

Database services are provided that enable you to manage the potential volumes of data.

򐂰 Database purge function

A database purge function deletes older performance data samples and, optionally, the

associated exception data. Flexibility is built into the purge function, and it enables you to

specify the data to purge, allowing important data to be maintained for trend purposes.

You can specify to purge all of the sample data from all types of devices older than a

specified number of days. You can specify to purge the data associated with a particular

type of device.

If threshold checking was enabled at the time of data collection, you can exclude data that

exceeded at least one threshold value from being purged.

You can specify the number of days that data is to remain in the database before being

purged. Sample data and, optionally, exception data older than the specified number of

days will be purged.

A reorganization function is performed on the database tables after the sample data is

deleted from the respective database tables.

򐂰 Database information function

Due to the amount of data collected by the Performance Manager function provided by

Productivity Center for Disk, the database should be monitored to prevent it from running

out of space. The database information function returns the database % full. This function

can be invoked from either the Web user interface or the CLI.

4.3.3 Operation characteristics

IBM TotalStorage Productivity Center communicates with your DS6000 through the TPC/IP

network. Therefore, you can gather information from any DS6000 around the world as long as

you have a communication path between the IBM TotalStorage Productivity Center and the

DS6000 through your intranet or the World Wide Web (Internet).

You will need to provide a TCP/IP connection between the DS6000 and the IBM TotalStorage

Productivity Center so that performance information, in particular can be sent from the

DS6000 to the IBM TotalStorage Productivity Center. When IBM TotalStorage Productivity

Center receives information from the DS6000, it is stored in tables within a DB2 database.

Thus, you can prepare and produce customized reports using traditional DB2 command.

Installation environment

The storage management components of IBM TotalStorage Productivity Center can be

installed on a variety of platforms. However, for the IBM TotalStorage Productivity Center

suite, when all four manager components are installed on the same system, the only common

platforms for the managers are:

򐂰 Windows 2000 Server with Service Pack 4

򐂰 Windows 2000 Advanced Server

򐂰 Windows 2003 Enterprise Server Edition

Hardware requirements:

򐂰 Dual Pentium® 4 or Xeon™ 2.4 GHz or faster processors