Promise Technology 66 Pro - Manual (Page 94)

SuperTrak66™ User's Manual Chapter 5
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Changing Dirty Threshold Flush Start Setting
As part of the System Cache Policy settings, a user is able to change the
maximum percentage of the total onboard SuperTrak66 memory that can be
occupied by data that has not yet been written to disk (i.e. "dirty" data) before it is
flushed from memory.
1) Double-click the IOPx icon in Tree View.
2) In the Information View (see Figure 65 on p. 84), enter a new number to change
the maximum percentage of cache memory that can be occupied by "dirty"
data before being cleared automatically.
3) Click “Commit” to enable the change or continue with other selections.
Changing Dirty Threshold Flush Stop Setting
As part of the System Cache Policy settings, a user is able to set the minimum
percentage of memory allowed by SuperTrak66 for data that has not yet been
written to disk (i.e. "dirty" data). This will stop SuperTrak66 from cleansing "dirty"
data from memory beyond this percentage point.
1) Double-click the IOPx icon in Tree View.
2) In the Information View (see Figure 65 on p. 84), enter a new number to change
the minimum percentage level of cache memory that can be occupied by
"dirty" data and stop flushing automatically.
3) Click “Commit” to enable the change or continue with other selections.
Viewing IOPx Object icons
Double-clicking on this icon generates the components connected to the controller
card – (from left) hard drive channels (first, second, and third icons below),
enclosure components (fifth icon below), and arrays (sixth icon below) in Object
View. Clicking on these icons will generate different information screens. See
section 5.10 for drive channels, section 5.11 for enclosures, and section 5.12 for
array.
Figure 64: IOPx Object View icons