Users Guide

Table 11. Controller Properties (continued)
Property Definition
Load Balance Provides the ability to automatically use both controller ports
or connectors connected to the same enclosure to route I/O
requests. This property is available only on SAS controllers
that have controller firmware version 6.1 and later.
Auto Replace Member on Predictive Failure Enables the automatic copying of data from a physical disk to
a hot spare in case of predictive failure. Use this property in
conjunction with the Allow Revertible Hot Spare and Replace
Member property.
Redundant path view Indicates whether Storage Management has detected a
redundant path configuration. Storage Management detects
a redundant path configuration when both controller ports are
connected to the same enclosure that is in a unified mode.
Encryption Capable Indicates whether the controller has the capability to support
encryption. Possible values are Yes and No.
Encryption Key Present Indicates whether the controller has an encryption key
established. Possible values are Yes and No.
Encryption Mode Indicates whether the controller is using Local Key
Management (LKM) Secure Enterprise Key Management
(SEKM) or None. For more information, see Managing The
Encryption Key.
T10 Protection Information Capability Indicates whether the controller supports data integrity.
Possible values are Yes and No.
Cache Memory Size Displays the size of the cache memory on the controller.
Patrol Read Mode Displays the Patrol Read Mode setting for the controller.
Possible values are:
● Auto — Patrol read runs continuously on the system.
When one iteration of the patrol read is complete, the
next patrol read is scheduled to start within an interval
specified by the controller. You do not have the option of
manually starting or stopping the Patrol Read in this mode.
● Manual — Allows you to manually start or stop the patrol
read process.
● Disabled — Indicates that the patrol read process is
disabled.
For more information about patrol read, see Setting The Patrol
Read Mode and Starting And Stopping Patrol Read.
Patrol Read State Displays the current state of the patrol read process. Possible
values are:
● Ready — The patrol read process is enabled and runs
when next scheduled or when manually initiated.
● Active — The patrol read process is running.
● Stopped — The patrol read has been stopped.
For more information about patrol read, see Setting The Patrol
Read Mode.
Patrol Read Rate Displays the percentage of system resources dedicated for
running the Patrol Read operation. Patrol Read Rate
changes the amount of system resources assigned for the
patrol read task. The Patrol Read Rate can be configured
between 0% and 100%, where:
● 0% — indicates the lowest priority for controllers and has
the least impact on the system performance.
● 100% — indicates the highest priority for controllers and
has a greater impact on the system performance.
54 Controllers