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Users Guide

ManualsBrandsDell ManualsC SeriesPowerEdge M640
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Table Of Contents
○ 增强的自动导入外部配置
○ 重建率
○ 检查一致性率
○ 重构率
○ 后台初始化 (BGI) 率
○ 机柜或背板模式
○ 巡检读取未配置区域
● 查看适用于 RAID 控制器的所有属性（虚拟磁盘除外）。
● 清除外部配置
注: 如果某操作在非 RAID 模式中不受支持，会显示一条错误消息。
当控制器处于非 RAID 模式时，无法监测机柜温度探测器、风扇和电源设备。
在多个存储控制器上运行 RAID 配置作业
当从任何受支持的 iDRAC 界面对两个以上的存储控制器执行操作时，请确保：
● 单独对每个控制器运行作业。等待每个作业完成，然后再开始在下一个控制器上进行配置和创建作业。
● 使用计划选项将多个作业计划为在以后某个时间运行。
管理保留的高速缓存
受管保留的高速缓存功能是控制器选项，可让用户选择放弃控制器高速缓存数据。在回写式策略中，数据写入到高速缓存中，然后
写入物理磁盘。如果虚拟磁盘由于任何原因变为脱机或被删除，则高速缓存中的数据将被删除。
在电源故障或电缆断开时，PREC 控制器将保留写入在保留的或故障的高速缓存中的数据，直到用户恢复虚拟磁盘或清除高速缓存。
控制器的状态受保留的高速缓存影响。如果控制器已保留高速缓存，则控制器状态显示为已降级。仅当满足以下所有条件时，才可
放弃保留的高速缓存：
● 控制器没有任何外部配置。
● 控制器没有任何脱机或缺失的虚拟磁盘。
● 连接到任何虚拟磁盘的电缆没有断开连接。
Managing PCIe SSDs
Peripheral Component Interconnect Express (PCIe) solid-state device (SSD) is a high-performance storage device designed for solutions
requiring low latency, high Input Output Operations per Second (IOPS), and enterprise class storage reliability and serviceability. The PCIe
SSD is designed based on Single Level Cell (SLC) and Multi-Level Cell (MLC) NAND flash technology with a high-speed PCIe 2.0, PCIe
3.0, or PCIe 4.0 compliant interface. In 14th generation of PowerEdge servers, we have three different ways to connect SSDs. You can
use an extender to connect the SSDs via backplane, directly connect the SSDs from backplane to mother board using slimline cable
without extender, and use HHHL (Add-In) card which sits on the motherboard.
NOTE:
● 14th generation of PowerEdge servers are supporting Industry standard NVMe-MI specification based NVMe SSDs
● PERC 11 supports PCIe SSD/NVMe devices behind PERC inventory monitoring and configuration.
Using iDRAC interfaces, you can view and configure NVMe PCIe SSDs.
The key features of PCIe SSD are:
● Hot plug capability
● High-performance device
In few of the 14th generation of PowerEdge servers, up to 32 NVMe SSDs are supported.
You can perform the following operations for PCIe SSDs:
● Inventory and remotely monitor the health of PCIe SSDs in the server
● Prepare to remove the PCIe SSD
● Securely erase the data
● Blink or unblink the device LED (Identify the device)
Managing storage devices 237