Processing time

Files saved by Export Tool are often very large. The total file size can be as large as 2 GB. Therefore, you might need a lot of time to complete the exporting process. If you want to export statistics spanning a long period of time, you should run Export Tool multiple times for shorter periods, rather than run it one time to export the entire time span as a single large file. For example, if you want to export statistics spanning 24 hours, run the tool eight times to export statistics in three-hour increments.

The following table provides lists time estimates for exporting monitoring data files using different operands in the group subcommand.

Operand for the group subcommand

Estimated time

Description

Port

5 minutes

This estimate assumes that Export Tool is saving 24 hours of statistics for 128 ports.*

PortWWN

5 minutes

This estimate assumes that Export Tool is saving 24 hours of statistics for 128 ports.*

LDEV

60 minutes

This estimate assumes that:

  • Export Tool is saving 24 hours of statistics for 8,192 volumes.*
  • Export Tool is used eight times. Each time Export Tool is used, the tool obtains statistics for a 3-hour period.

LU

60 minutes

This estimate assumes that:

  • Export Tool is saving 24 hours of statistics for 12,288 LUs.*
  • Export Tool is used eight times. Each time Export Tool is used, the tool obtains statistics for a 3-hour period.

* For a 1-minute interval, the number of hours for the data that is stored is proportional to the interval. For example, for a 2-minute interval, data for 48 hours can be stored.

Note:

  • The estimated time that includes the transfer time of the network might take a lot of time, depending on the transmission speed of the network.
  • To shorten the acquisition time, specify the option of the group command to narrow acquisition objects. For details about the group command, see group.
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