Fujitsu ETERNUS VSS Hardware Provider 2.1 User Manual page 32

Chapter 3 Preparation
3.2 Shadow Copy Destination Disk Creation
3
Measure the amount of updates using the extracted "Update Volume Measurement
Command".
Example) With the "Update Volume Measurement Command" extracted in C:\temp
(1) Start measuring the amount of updates for the target source disk. (start option)
C:\temp>stxvtestcopy start -p 1
stxvtestcopy successfully completed.
(2) Measure the typical amount of source disk updates.
To discover the typical amount of source disk updates, run some arbitrary update operations.
For example, to estimate the required capacity for backing up a whole day of updates,
execute a typical days worth of update operations.
(3) After the arbitrary update operations have completed, check the amount of source disk
updates. (status option)
C:\temp>stxvtestcopy status -p 1
source-disk
1
stxvtestcopy successfully completed.
(4) After checking the amount of updates, stop measuring the amount of updates. (stop option)
C:\temp>stxvtestcopy stop -p 1
stxvtestcopy successfully completed.
(5) Estimate a SDV capacity.
According to the measured amount of updates, estimate the SDV physical capacity.
Example) Based on the result in (3), SDV physical capacity = 2MB.
4
Because the command executed here is for pre-operation use in determining required
capacities, delete the "Update Volume Measurement Command" package and
extracted files after determining the required capacity.
For the details about the "Update Volume Measurement Command", refer to
Measurement Command (stxvtestcopy)" (page
update
2
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ETERNUS VSS Hardware Provider 2.1 User's Guide
Copyright 2012 FUJITSU LIMITED
54).
End of procedure
"8.2 Update Volume
P3AM-4582-03ENZ0