Using the dedup estimator tool

This topic describes how to collect and analyze ProtecTIER® backup and deduplication data using the dedup estimator tool

Before you begin

Before you can use the dedup estimator tool, you must create a profile using ptcli utility. See Creating a profile for the TS7600 ProtecTIER Deduplication Solutions, V3.4.3 for instructions.

About this task

Use the online dedup estimator tool to monitor the data statistics for the backup and deduplication sessions of your ProtecTIER system. You can use the dedup estimator tool to calculate deduplication ratios in four ways; by file, library, range, or parameter.

Procedure

To calculate deduplication ratios by file, change to the /opt/dtc/ptcli/ptcli/ directory and type ./CalculateVtlDedupRatioByFile at the command prompt.

Usage options	Explanation
--file PATH	The path to a file containing a list of cartridges to be calculated. The file structure must be in a format in which each cartridge is in a separate line, without any other characters. For example: `L00000 L00001`
[--maxErrorsPercentage NUM]	The Maximum errors percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--tolerancePercentage NUM]	The tolerance percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--numOfSamples NUM]	The number of samples within server limits. (Default is taken from GetDedupRatioParameters output)

To calculate deduplication ratios by library, change to the /opt/dtc/ptcli/ptcli/ directory and type ./CalculateVtlDedupRatioByLibrary at the command prompt.

Usage options	Explanation
libraryName LIBRARY	Library name to calculate. Only one library can be processed at a time.
[--maxErrorsPercentage NUM]	The Maximum errors percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--tolerancePercentage NUM]	The tolerance percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--numOfSamples NUM]	The number of samples within server limits. (Default is taken from GetDedupRatioParameters output)

To calculate deduplication ratios by range, change to the /opt/dtc/ptcli/ptcli/ directory and type ./CalculateVtlDedupRatioByRange at the command prompt.

Usage options	Explanation
--fromBarcode	BARCODE From cartridge barcode.
--toBarcode	BARCODE To cartridge barcode.
[--maxErrorsPercentage NUM]	The Maximum errors percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--tolerancePercentage NUM]	The tolerance percentage between 0 to 100. (Default value is taken from GetDedupRatioParameters output)
[--numOfSamples NUM]	The number of samples within server limits. (Default is taken from GetDedupRatioParameters output)

To calculate deduplication ratios by parameters, change to the /opt/dtc/ptcli/ptcli/ directory and type ./CalculateVtlDedupRatioByParameters at the command prompt.

Results

The following is an example of running the dedup estimator tool by file, library or range:

#### WARNING!! ####
All open sessions of PT Manager must be terminated before running Dedup Estimator utility.
To continue working with PT Manager while running the Dedup Estimator utility, 
connect to PT Manager as ptoper.

Please wait while Dedup Estimator is working. This may take a few minutes to complete.
Preparing: 100% completed 
Analyzing: 100% completed
Calculating: 100% completed

Node-id = 1
Estimated compression-ratio = 1:2.09
Estimated dedup-ratio = 1:3.61
Estimated overall factoring-ratio = 1:7.54
16384 successful samples out of 16384

The following is an example of running the dedup estimator tool by parameter:

#### WARNING!! ####
All open sessions of PT Manager must be terminated before running Dedup Estimator utility.
To continue working with PT Manager while running the Dedup Estimator utility, 
connect to PT Manager as ptoper.
####
Node-id = 1
defaults :
    confidence-percentage = 90
    max-errors-percentage = 10
Limits :
     num-of-samples :
         from = 1
         to = 16384
Function completed successfully.