Encryption Manager; Managing Modes; Power Modes - NEC Express 5800 Series User Manual

To perform the operation, you must meet the following conditions:

The destination array must have the same number of physical drives as the source or original array.

Both the source and destination arrays must be in OK state.

All existing logical drives in the source array must be in OK state.

The destination array must have sufficient capacity to hold all logical drives present in the source array.

Encryption Manager

This task is not supported.

Managing modes

This task is not supported.

Power modes

There are three available power modes:

Maximum performance

Minimum power

Balanced
Maximum performance (default)
This is the default setting. All settings are selected based on maximum performance. Power savings options
that affect performance are disabled.
Balanced
You can use this setting to save power with minimal effects on performance. For large queue depths, this
setting affects throughput by 10% or less.
At lower queue depths or infrequent I/O, impacts on performance may be greater. This command is typically
useful in environments using only hard drives, and is not recommended when using SSDs.
Settings are based on the user configuration, such as the number or types of drives, the RAID level, storage
topology, and so forth. Significant changes to the configuration may require a reboot for optimal setting
selection. If a reboot is required to change settings, SSA generates a warning.
Minimum power
When settings are selected without regard to system performance, maximum power savings is achieved. NEC
recommends this setting for very specific applications, but it is not appropriate for the majority of customers.
Most applications will suffer significant performance reduction.
IMPORTANT: A reboot may be required after switching power modes in order to optimize savings
and performance.
IMPORTANT: When the power mode is set to Balanced, future controller configuration changes
may require a reboot for optimal performance.
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