How to upload your data into WorkloadCentral for Analysis
Understanding real application IO workloads has traditionally been one of the most challenging barriers to storage performance validation. Workload Central makes it easy to understand your workload based on analyzing data from your existing storage or compute management tools.
This data which is statistical in nature and of metadata for read/write operations etc needs to be exported into a CSV format to be able to be used in WorkloadCentral.
The data uploaded is considered private to the user who uploaded it and not visible to the community. A workload can be created from this data that can be shared or made public by the user who created the workload.
For more information on how to get workload data and the format required by WorkloadCentral.
- All workloads created by WorkloadCentral are designed to run on Virtual Instruments (formerly Load DynamiX) Load Generation Appliances.
- You only require a Virtual Instruments Load Generation Appliance if you wish to run the created or downloaded workloads in your environment.
You can analyze your data for free and download or print a report of your workload characteristics without having to create or publish a workload from your data.
The first step is to choose the infrastructure grouping the data belongs to. It recommended that you be descriptive in naming, description and tagging as it makes it easier to find the data later on. To add new tags simply type in the tag line and it will automatically convert the text to a tag.
To select the file to import you simply drag the file into the section on the Workload Data Importer screen or click on the "select a file to upload" link which take you into a standard file open dialog.
The importer will upload the file and filter the list of Analysis Policies to those that match the file.
Workload Analysis Policies
WorkloadCentral provides a number of policies out of the box for storage and infrastructure monitoring tools.
The Analysis policy allows you to select the workload type you wish to create from the Workload data under Analysis Rules & Clustering Parameters. Typically there will be a policy for each supported workload.
The workloads will be labeled Constant or Temporal.
- A Temporal workload varies the IOPs over time according to the patterns observed in the data and can only be created through Uploading and Analyzing your data.
- A Constant workload uses a set level of IOPs, Latency or Throughput based on either the average or maximum values observed. The workload can also be a Summary workload or a Composite depending on whether all LUNs are grouped and summarized or merely those that have similar workloads.
Select the Analysis Policy that will create the type of workload(s) you are interested in.
If you click on the button next to the drop down list it will open take you to the Workload Analysis Policy Library where you can view individual policies. All policies are read-only.
If data is not recognized or there isn't suitable Analysis Policy. You can simply request a new policy be created by clicking on the contact icon and the Workload Central team will be emailed your request. Please specify the source of the data (ie Vendor, Storage Array or Compute product, management tool and version that the data was exported from).
Analysis Policy Parameters
Analysis Parameters allow you to specify values to be used in creating workloads that aren't available from the uploaded data. For example actual block sizes aren't tracked by most arrays. An average block size can be typically calculated by dividing throughput by read/write operations.
In reality applications use a variety of block sizes so Analysis Parameters allow you to specify the block sizes to use. The analysis will calculate the appropriate % of each block size that will arrive at the average block size.
Other types of parameters can be configured in a similar fashion if needed. The types of parameters that user settable are defined in the Calculation Rules Analysis Policy which specifies what user input is required to support calculated values.
Once the parameters are set click on at any time and it will take you to Production Workload Data Analysis screen.