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601354 Rev A Normal Operations 4-11
Normal Operation
• 40 percent of Media Class Group A is associated with
Archive X
• 40 percent of Media Class Group A is associated with
Archive Y
• 20 percent of Media Class Group A is associated with
archive Z
• High mark and low mark for Archive Media Class AX is
80percent and 60 percent, respectively
• High mark and low mark for Archive Media Class AY is 70
percent and 60 percent, respectively
• Migration archives are defined such that migration proceeds
from left to right(i.e., from AX to AY to AZ).
When the Archive Media Class AX fill level reaches the high
mark threshold of 64 media (= 200 * 0.40 * 0.80 = Media Class
Group A capacity * Archive Media Class AX % * Archive
Media Class AX high mark %), migration begins. Media are
migrated from Archive X into Archive Y. Migration continues
Y
Media Class Group A
Z
X
Direction of Migration