ORtera | Products: Supporting Material

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Supporting Material

Here you find various types of files and other material that may be useful to you when using or evaluating ORtera software.

ORtera Whitepapers

An Overview of the ORtera Model
A Complex I/O Workload Prediction Example [PDF]

ORtera Summary Report

The ORtera Summary Report provides an easy way to document your storage performance, to keep track of changes over time or to share information between team members. Here is sample [PDF], from a client's data warehouse. It shows conditions ORtera identified during the automatic analysis that occurs on initial start-up and points the way to major configuration improvements:

A large number unused resources
A major imbalance of resources that are used (from concatenated volumes)
I/O fragmentation between the logical and physical layers (the relation of application I/O size to RAID stripe unit)
CPU deficit from the likes of fsflush thrashing
Excessive response times at the filesystem layer (even though response times were fine at the physical layer, which is the only data that other I/O performance tools typically show)

ORtera XML Files

You can export and import XML files containing workload profiles for an application or a filesystem in ORtera Atlas Compass. Here are some samples.

If your browser shows you the file instead of letting you download it, right-click on the link and choose "Save Link As" to download the file.

A filesystem built on a Solaris Volume Manager^TM (SVM) trans device

The following XML files captures process and filesystem time series data for load generators (the vxbench command) with a variety of mixed I/O sizes and access types running on a 28x400 mhz Ultra Sparc II, E10K 50 GB ram, 8 2 GBit fiber, 8 T4 partner pairs.