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ETERNUS SF Storage Cruiser V16.5 Operation Guide for Optimization Function
FUJITSU Storage

3.10.1 Settings When Using One Layer Tier Pool

By starting Automated Storage Tiering, the one layer Tier pool information can be displayed on the Access Status Chart panel of the Dashboard. For the start method of Automated Storage Tiering, refer to "Start/Stop Automated Storage Tiering for Tier Pool" in the ETERNUS SF Web Console Guide.

If you display the one layer Tier pool information on the Access Status Chart panel, the average for the IOPS values that occur over a one day period is displayed on the graph.

When you want to change the IOPS calculation period and evaluation standard in a one layer Tier pool, modify the configuration file. The configuration file is stored in the following location of the Management Server.

OS Type of Management Server

Absolute Path Name

Windows

$ENV_DIR\AST\Manager\etc\opt\FJSVssast\data\astchart\astchart.properties
($ENV_DIR is "Environment Directory" specified at the ETERNUS SF Manager installation.)

Solaris, Linux

/etc/opt/FJSVssast/data/astchart/astchart.properties

How to Reflect Configuration File

The modified content is automatically reflected at the next IOPS calculation time (at 2:00 the next day).

Customization

DAY_UNIT

Set an IOPS calculation period on a one to seven day basis. The default value is set with one.
If set with a value outside the specified range, the default value is used.

Example:
DAY_UNIT = 1
EVALUATE_VALUE

Set an IOPS evaluation standard with 1 (average) or 2 (peak value). The default value is set with one.
If set with a value outside the specified range, the default value is used.

Example:
EVALUATE_VALUE = 1
DAY_OF_WEEK

When an IOPS evaluation period is set to seven days, you can specify the day of the week to start the evaluation.
The evaluation start day the can be set is "SUN" (Sunday), "MON" (Monday), "TUE" (Tuesday), "WED" (Wednesday), "THU" (Thursday), "FRI" (Friday), "SAT" (Saturday), or "" (unspecified). The default value that is set is "".
If set with a string other than those listed above, the default value is used.

Example:
DAY_OF_WEEK = SUN

Note

These settings are the common settings in all one layer Tier pools managed by ETERNUS SF Manager. Because of that, the settings cannot be changed for each Tier pool.