User's Manual

Operations 48
Setting Description
Disable
Controller will allow drives to optimize for throughput, resulting in higher maximum
latencies for some workloads.
High
Controller will attempt to compel disks to complete operations in a timely manner, but
still allow for some drive optimization. Doing so will lower the effective throughput for
some workloads.
Low
Controller will compel a disk to complete operations at an earlier time compared to the
high setting, resulting in lower maximum latencies, but lower throughput.
IMPORTANT: Setting a higher level of FLS can result in a loss of throughput for some request
patterns.
To enable FLS:
1. Open HP SSA. For more information, see "Using the HP SSA GUI (on page 17)."
2. Select the controller.
3. Click Advanced Controller Settings.