Users Guide

Table Of Contents
Table 13. Controller Properties (continued)
Property Definition
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.
Patrol Read Iterations Displays the number of Patrol Read Iterations. For more
information about patrol read, see Setting The Patrol Read
Mode.
Cluster Mode Indicates whether the controller is part of a cluster
configuration.
Persistent Hot Spare Displays if the hot spare is persistent. The possible values are:
Enabled The slot corresponding to the hot spare drive
is persistent. Any drive in the slot functions as a hot spare
if the drive is qualified to be a hot spare. If the drive
contains foreign data, it is overwritten.
Disabled The slot corresponding to the hot spare drive
is not persistent. If the drive is removed from the slot and
any drive is inserted, the slot stops functioning as a hot
spare. You must manually assign the drive as a hot spare
again.
Controller Tasks Enables you to configure and manage the controller.
Available Reports Enables you to view patrol read report, check consistency
report, slot occupancy report, and physical disk firmware
version report. For more information on available reports, see
Available Reports.
Current Controller Mode Displays the mode of the hardware controller that is selected.
The possible values are RAID or HBA or Enhanced HBA.
To change the controller mode, see Changing The Controller
Mode.
56 Controllers