Dell PowerEdge R830 Integrated Remote Access Controller 8 Version 2.70.70.70 U - Page 200

Configuring controller properties using web interface, Con Controller Properties

Page 200 highlights

time to complete, and is the setting with the least impact to system performance. A background initialization rate of 0% does not mean that the background initialization is stopped or paused. At 100%, the background initialization is the highest priority for the controller. The background initialization time is minimized and is the setting with the most impact to system performance. Check consistency The Check Consistency task verifies the accuracy of the redundant (parity) information. This task only applies to redundant virtual disks. When necessary, the Check Consistency task rebuilds the redundant data. If the virtual disk is in a Failed Redundancy state, running a check consistency may be able to return the virtual disk to a Ready state. The check consistency rate, configurable between 0% and 100%, represents the percentage of the system resources dedicated to running the check consistency task. At 0%, the check consistency has the lowest priority for the controller, takes the most time to complete, and is the setting with the least impact to system performance. A check consistency rate of 0% does not mean that the check consistency is stopped or paused. At 100%, the check consistency is the highest priority for the controller. The check consistency time is minimized and is the setting with the most impact to system performance. Create or change security keys When configuring the controller properties, you can create or change the security keys. The controller uses the encryption key to lock or unlock access to SED. You can create only one encryption key for each encryption-capable controller. The security key is managed using the Local Key Management (LKM) feature. LKM is used to generate the key ID and the password or key required to secure the virtual disk. If you are using LKM, you must create the encryption key by providing the Security Key Identifier and the Passphrase. This task is not supported on PERC hardware controllers running in HBA mode. If you create the security key-in Add to Pending Operation mode and a job is not created, and then if you delete the security key, the create security key pending operation is cleared. Configuring controller properties using web interface 1. In the iDRAC web interface, go to Overview > Storage > Controllers > Setup. The Setup Controllers page is displayed. 2. In the Configure Controller Properties section, from the Controller drop-down menu, select the controller that you want to configure. 3. Specify the required information for the various properties. The Current Value column displays the existing values for each property. You can modify this value by selecting the option from the Action drop-down menu for each property. For information about the fields, see the iDRAC Online Help. 4. From the Apply Operation Mode drop-down menu, select when you want to apply the settings. 5. Click Apply. Based on the selected operation mode, the settings are applied. Configuring controller properties using RACADM • To set Patrol Read Mode: racadm set storage.controller..PatrolReadMode {Automatic | Manual | Disabled} • If Patrol read mode is set to manual, use the following commands to start and stop Patrol read Mode: racadm storage patrolread: -state {start|stop} NOTE: Patrol read mode operations such as Start and Stop are not supported if there are no virtual disks available in the controller. Though you can invoke the operations successfully using the iDRAC interfaces, the operations will fail when the associated job is started. • To specify the Check Consistency Mode, use Storage.Controller.CheckConsistencyMode object. • To enable or disable the Copyback Mode, use Storage.Controller.CopybackMode object. • To enable or disable the Load Balance Mode, use Storage.Controller.PossibleloadBalancedMode object. • To specify the percentage of the system's resources dedicated to perform a check consistency on a redundant virtual disk, use Storage.Controller.CheckConsistencyRate object. • To specify the percentage of the controller's resources dedicated to rebuild a failed disk, use Storage.Controller.RebuildRate object 200 Managing storage devices

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time to complete, and is the setting with the least impact to system performance. A background initialization rate of 0% does not mean
that the background initialization is stopped or paused. At 100%, the background initialization is the highest priority for the controller. The
background initialization time is minimized and is the setting with the most impact to system performance.
Check consistency
The Check Consistency task verifies the accuracy of the redundant (parity) information. This task only applies to redundant virtual disks.
When necessary, the Check Consistency task rebuilds the redundant data. If the virtual disk is in a Failed Redundancy state, running a
check consistency may be able to return the virtual disk to a Ready state.
The check consistency rate, configurable between 0% and 100%, represents the percentage of the system resources dedicated to
running the check consistency task. At 0%, the check consistency has the lowest priority for the controller, takes the most time to
complete, and is the setting with the least impact to system performance. A check consistency rate of 0% does not mean that the check
consistency is stopped or paused. At 100%, the check consistency is the highest priority for the controller. The check consistency time is
minimized and is the setting with the most impact to system performance.
Create or change security keys
When configuring the controller properties, you can create or change the security keys. The controller uses the encryption key to lock or
unlock access to SED. You can create only one encryption key for each encryption-capable controller. The security key is managed using
the Local Key Management (LKM) feature. LKM is used to generate the key ID and the password or key required to secure the virtual
disk. If you are using LKM, you must create the encryption key by providing the Security Key Identifier and the Passphrase.
This task is not supported on PERC hardware controllers running in HBA mode.
If you create the security key-in Add to Pending Operation mode and a job is not created, and then if you delete the security key, the
create security key pending operation is cleared.
Configuring controller properties using web interface
1.
In the iDRAC web interface, go to
Overview
>
Storage
>
Controllers
>
Setup
.
The
Setup Controllers
page is displayed.
2.
In the
Configure Controller Properties
section, from the
Controller
drop-down menu, select the controller that you want to
configure.
3.
Specify the required information for the various properties.
The
Current Value
column displays the existing values for each property. You can modify this value by selecting the option from the
Action
drop-down menu for each property.
For information about the fields, see the
iDRAC Online Help
.
4.
From the
Apply Operation Mode
drop-down menu, select when you want to apply the settings.
5.
Click
Apply
.
Based on the selected operation mode, the settings are applied.
Configuring controller properties using RACADM
To set Patrol Read Mode:
racadm set storage.controller.<index>.PatrolReadMode
{Automatic | Manual | Disabled}
If Patrol read mode is set to manual, use the following commands to start and stop Patrol read Mode:
racadm storage patrolread:<Controller FQDD> -state {start|stop}
NOTE:
Patrol read mode operations such as Start and Stop are not supported if there are no virtual disks available in
the controller. Though you can invoke the operations successfully using the iDRAC interfaces, the operations will fail
when the associated job is started.
To specify the Check Consistency Mode, use
Storage.Controller.CheckConsistencyMode
object.
To enable or disable the Copyback Mode, use
Storage.Controller.CopybackMode
object.
To enable or disable the Load Balance Mode, use
Storage.Controller.PossibleloadBalancedMode
object.
To specify the percentage of the system's resources dedicated to perform a check consistency on a redundant virtual disk, use
Storage.Controller.CheckConsistencyRate
object.
To specify the percentage of the controller's resources dedicated to rebuild a failed disk, use
Storage.Controller.RebuildRate
object
200
Managing storage devices