Users Guide

NOTE: Enable iDRAC Alerts and Redfish events for the specific hardware for which you need telemetry reports.
4. Redfish client makes subscription request to the Redfish EventService on iDRAC.
5. iDRAC generates and pushes the metric report or log/event data to the subscribed client when the predefined trigger conditions are
met.
Feature Constraints:
1. For security reasons, iDRAC supports only HTTPS-based communication to the client.
2. For stability reasons, iDRAC supports up to eight subscriptions.
3. Deletion of subscriptions is supported through Redfish interface only, even for the manual deletion by the Admin.
Behavior of Telemetry feature:
● iDRAC generates and pushes (HTTP POST) the Metric Report or log/event data to all the subscribed clients to the destination
specified in the subscription when the predefined trigger conditions are met. The clients receive new data only upon successful
subscription creation.
● The metric data includes the timestamp in ISO format, UTC time (ends in 'Z'), at the time of data collection from source.
● Clients can terminate a subscription by sending an HTTP DELETE message to the URI of the subscription resource through the
Redfish interface.
● If the subscription is deleted either by iDRAC or the client, then iDRAC does not send (HTTP POST) reports. If the number of delivery
errors exceeds predefined thresholds, then iDRAC may delete a subscription.
● If a user has Admin privilege, they can delete the subscriptions but only through Redfish interface.
● Client is notified about the termination of a subscription by iDRAC by sending 'Subscription terminated' event as the last message.
● Subscriptions are persistent and can remain even after iDRAC restarts. But, they can be deleted either by performing racresetcfg
or LCwipe operations.
● User interfaces like RACADM, Redfish, SCP, and iDRAC display the current status of the client subscriptions.
串行数据捕获
iDRAC 允许使用串行数据捕获功能捕获控制台重定向串行，以便稍后检索。此功能需要 iDRAC Datacenter 许可证。
串行数据捕获功能的目的是捕获系统序列数据并将其存储起来，以便客户稍后出于调试目的检索。
您可以使用 RACADM、Redfish、iDRAC 界面启用或禁用串行数据捕获。此属性启用时，iDRAC 将捕获在主机串行设备 2 上接收的串
行流量，而不考虑串行 Mux 模式设置。
要使用 iDRAC GUI 启用/禁用串行数据捕获，请转至维护 > 诊断 > 串行数据日志页面，并选中复选框以启用或禁用。
注:
● 此属性在 iDRAC 重新引导后保持不变。
● 固件重设为默认值将禁用此功能。
● 启用串行数据捕获时，缓冲区将继续附加最近数据。如果用户禁用串行捕捉并再次启用，则 iDRAC 会从上次更新开始附加。
当用户从任何界面启用串行数据捕获标记时，系统串行数据捕获即开始。如果在系统启动后启用串行数据捕获，则必须重新启动系
统，以便 BIOS 可以查看新设置（iDRAC 请求的控制台重定向已启用）以获取串行数据。iDRAC 将连续启动数据捕获，并存储到有
512 KB 字节限制的共享内存中。此缓冲区将循环。
注:
● 要使此功能正常工作，用户必须具有登录权限和系统控制权限。
● 此功能需要 iDARC Datacenter 许可证。
动态配置虚拟地址、启动器和存储目标设置
您可以动态地查看和配置虚拟地址、启动器和存储目标设置，并应用持久性策略。它允许应用程序基于电源状态更改应用设置
（即，操作系统重新启动、热重设、冷重设或交流点重启），同时还可以基于该电源状态的持久性策略设置。这提供了更灵活的部
署，满足将系统的工作负载快速重新配置到另一个系统的需求。
虚拟地址是：
● 虚拟 MAC 地址
● 虚拟 iSCSI MAC 地址
● 虚拟 FIP MAC 地址
● 虚拟 WWN
194 对网络设备执行资源清册、监测和配置操作