HP StorageWorks XP10000 Disk Array - Manual (Page 14)

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Figure 1-3 Migration Suited to the Life Cycle of Data
1-2-2 When Improving Storage Performance
You can migrate data to improve storage performance if multiple volumes with high-access frequency in the
same array group become overloaded, if a storage subsystem reaches a bottleneck, or if data outlives the life
of the storage system.
Migration in a domain controller is illustrated by Figure 1-4
Figure 1-4 Migration in the Domain Controller
Figure 1-5 and Figure 1-6 illustrate migrating data to redistribute access load and improve storage
performance.