ETERNUS SF AdvancedCopy Manager V16.8 Operation Guide

9.5.1 swstestupdate (Update Volume Measurement Command)

NAME

swstestupdate - measures the physical capacity of a Snap Data Volume

SYNOPSIS

To Start Update Volume Measurements (Setting Up Monitor Session)

/opt/FJSVswsts/bin/swstestupdate start volumeName

To Look Up Update Volume (Displaying Status of Monitor Session)

/opt/FJSVswsts/bin/swstestupdate status volumeName

To Finish Update Volume Measurements (Cancelling Monitor Session)

/opt/FJSVswsts/bin/swstestupdate stop volumeName

DESCRIPTION

This command measures the update amount in the volume.

To Start Update Volume Measurements (Setting Up Monitor Session)

Specify "start" as the subcommand to start measure of the physical capacity of a Snap Data Volume.

To Look Up Update Volume (Displaying Status of Monitor Session)

Specify "status" as the subcommand to display the physical capacity of a Snap Data Volume.
The following information is displayed.

Title	Description
Volume-Name	The volume name.
Update	The amount of data that has been updated since measurements started in the number of blocks (1 block = 512 bytes). Displays "----" if there is no monitor session. Displays "failed" if the monitor session is error-suspended.

To Finish Update Volume Measurements (Cancelling Monitor Session)

Specify "stop" as the subcommand to stop measure of the physical capacity of a Snap Data Volume.

OPERANDS

volumeName

• Specifies the name of the measurement target volume.

  PRIMECLUSTER GD logical volumes cannot be specified.

EXIT STATUS

=0: Completed successfully
>0: Terminated abnormally

EXAMPLES

• Measure the update volume:

  (Start taking measurements by starting a monitor session)
  #/opt/FJSVswsts/bin/swstestupdate start /dev/dsk/c1t0d0s1
  /dev/dsk/c1t0d0s1 swstestupdate completed
  
  (First measurement)
  #/opt/FJSVswsts/bin/swstestupdate status /dev/dsk/c1t0d0s1
  Volume-Name       Update
  /dev/dsk/c1t0d0s1 644333
  
  (Second measurement)
  #/opt/FJSVswsts/bin/swstestupdate status /dev/dsk/c1t0d0s1
  Volume-Name       Update
  /dev/dsk/c1t0d0s1 1045000
  
  (Stop taking measurements by cancelling the monitor session)
  # /opt/FJSVswsts/bin/swstestupdate stop /dev/dsk/c1t0d0s1
  /dev/dsk/c1t0d0s1 swstestupdate completed
  #

NOTES

• The amount of data updated cannot be measured in the following cases:

  • When the specified volume does not exist.

  • When the specified volume is TFOV.

  • When the monitor session has already been set up (i.e., when the "start" option is specified).

  • When the monitor session does not exist (i.e., when the "stop" option is specified).