ADIC Time Clock 6-00028-01 Rev A Manual De Usuario

6-00028-01 Rev A

Cache Commands

C-7

The example below illustrates how to display cache block list 
values for volume groups 121 through123:

Assigns weight factor values to the cache block list numbers. 
AMASS uses this weight factor to determine which cache block 
to reuse next and reuses the cache block with the highest score. 
The score is calculated by the weight factor (defined with the 

setcbwght

 command) associated with the list the cache block 

is on (defined with the 

setcblist

 command) multiplied by the 

age of the cache block.

# su root
# cblist 121 123

VOLGRP

Read

Write

121

1

6

122

3

2

123

2

2

weight factor * age of cache block = score

Age of cache block = current time MINUS time cache block was put on free list. 
When the cache block is reused, it is taken off the free list and put back on when 
processing has completed. When it is put back on, AMASS creates a new 
timestamp for the block. The oldest block is the one that has not been accessed 
for the longest period of time in seconds.