Users Guide

Table Of Contents
Table 45. System behavior for FlexAddress and I/O Identity (continued)
Type
FlexAddress
Feature State in
CMC
IO Identity
Feature State in
iDRAC
Availability of
Remote Agent VA
for the Reboot
Cycle
VA Programming
Source
Reboot Cycle
VA Persistence
Behavior
Disabled Enabled Yes New or
Persisted
Remote Agent
Virtual Address
Per Remote Agent
Policy Setting
No Virtual Address
Cleared
Disabled Disabled
Enabling or disabling IO Identity Optimization
Normally, after the system boots, the devices are configured and then after a reboot the devices are initialized. You can enable
the I/O Identity Optimization feature to achieve boot optimization. If it is enabled, it sets the virtual address, initiator, and
storage target attributes after the device is reset and before it is initialized, thus eliminating a second BIOS restart. The device
configuration and boot operation occur in a single system start and is optimized for boot time performance.
Before enabling I/O identity optimization, make sure that:
You have the Login, Configure, and System Control privileges.
BIOS, iDRAC, and network cards are updated to the latest firmware.
After enabling I/O Identity Optimization feature, export the Server Configuration Profile file from iDRAC, modify the required
I/O Identity attributes in the SCP file, and import the file back to iDRAC.
For the list of I/O Identity Optimization attributes that you can modify in the SCP file, see the NIC Profile document available at
https://www.dell.com/support.
NOTE: Do not modify non I/O Identity Optimization attributes.
Enabling or disabling IO Identity Optimization using web interface
To enable or disable I/O Identity Optimization:
1. In the iDRAC Web interface, go to Configuration > System Settings > Hardware Settings > I/O Identity
Optimization.
The I/O Identity Optimization page is displayed.
2. Click the I/O Identity Optimization tab, select the Enable option to enable this feature. To disable, clear this option.
3. Click Apply to apply the setting.
Enabling or disabling IO Identity Optimization using RACADM
To enable I/O Identity Optimization, use the command:
racadm set idrac.ioidopt.IOIDOptEnable Enabled
After enabling this feature, you must restart the system for the settings to take effect.
To disable I/O Identity Optimization, use the command:
racadm set idrac.ioidopt.IOIDOptEnable Disabled
To view the I/O Identity Optimization setting, use the command:
racadm get iDRAC.IOIDOpt
214
Inventorying, monitoring, and configuring network devices