Setting The Raid Rebuild Priority - Linksys NSS4000 Series Administrator's Manual

Setting the RAID Rebuild Priority

During normal operation, the CPU switches between tasks to service all active tasks on the system.
Creating a RAID array or rebuilding an existing array can take up a significant amount of the
available percentage of CPU processing power. You can control how the system prioritizes the rebuild
and allocates the system's resources based on your system's current workload and need for
responsiveness.
To configure the RAID rebuild priority:
1. From the Manager Menu, click Storage
The Storage Options page appears.
2. From the RAID Rebuild Priority menu, select the allocation of CPU processing power to the RAID
rebuild task.
• High: The CPU focuses on the RAID rebuilding process. This setting allows for the fastest
possible RAID rebuild at the expense of other system tasks. File-sharing throughput is
adversely affected during RAID rebuild when this setting is chosen.
• Medium: This option gives a balance between the rebuild process and other system tasks. The
rebuild process takes longer than if it was set to High.
• Low: The CPU focuses on other tasks versus the RAID rebuild process. This results in a longer
rebuild time on a busy system. However, if the workload on the system is low, the CPU
services the rebuild process well. Note that if you are repairing an array, this option leaves
the array vulnerable until the rebuild is complete.
3. Click Update.
Chapter 4: Storage
Setting the RAID Rebuild Priority
Network Storage System (NSS) Administrator Guide
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