HP MSA 2040 CLI Reference Guide

show advanced-settings 203
Partner Notify
Shows whether the partner controller will be notified when a trigger condition occurs.
• Disabled: Notification is disabled; the partner controller will continue using its current caching
mode. This is the default.
• Enabled: Notification is enabled; the partner controller will change to write-through mode for
better data protection.
Auto Write Back
Shows whether the cache mode will change from write-through to write-back when the trigger
condition is cleared.
• Disabled: Auto-write-back is disabled.
• Enabled: Auto-write-back is enabled. This is the default.
Drive Spin Down Non-Vdisk Enable
Shows whether available disks and global spares will spin down after a period of inactivity shown
by the Drive Spin Down Non-Vdisk Delay field.
• Disabled: Drive spin down for available disks and global spares is disabled. This is the
default.
• Enabled: Drive spin down for available disks and global spares is enabled.
Drive Spin Down Non-Vdisk Delay
Shows the period of inactivity in minutes after which available disks and global spares will spin
down, from 1–360 minutes. The value 0 means spin down is disabled. The default is 15 minutes.
Disk Background Scrub
Shows whether disks that are not in vdisks are automatically checked for disk defects to ensure
system health. The interval between background disk scrub finishing and starting again is 72 hours.
• Disabled: Background disk scrub is disabled. This is the default.
• Enabled: Background disk scrub is enabled.
Managed Logs
Shows whether the managed logs feature is enabled, which allows log files to be transferred from
the storage system to a log collection system to avoid losing diagnostic data as logs fill.
• Disabled: The managed logs feature is disabled. This is the default.
• Enabled: The managed logs feature is enabled.
Single Controller Mode
For a system that had two controller modules but now has only one and is intended to be used as a
single-controller system, this property shows whether the operating/redundancy mode is set to Single
Controller. This prevents the system from reporting the absent partner controller as an error condition.
This parameter does not affect any other system settings. Installing a second, functional controller
module will change the mode to Active-Active ULP.
• Enabled: Single Controller mode is enabled.
• Disabled: Single Controller mode is disabled.
Auto Stall Recovery
Shows whether the auto-stall recovery feature is enabled, which detects situations where a controller
stall is preventing I/O operations from completing, and recovers the system so that at least one
controller is operational, thus avoiding data-unavailability situations. This feature focuses on
Active-Active I/O stalls and failover/recovery stalls. When a stall is detected, event 531 is logged.
• Disabled: Auto-stall recovery is disabled. The system will constantly perform auto-stall
detection in the background but will not automatically perform recovery actions. This is the
default.
• Enabled: Auto-stall recovery is enabled. The system will constantly perform auto-stall detection
in the background and automatically perform recovery actions.