PowerEdge RAID Controller H840

This article lists the PowerEdge RAID Controllers (PERC) by series family (generation) for Dell systems. There are several types of PERC controllers available depending on internal or external storage connectors, maximum drive support, and RAID support.

This article shows how to add additional disks to a virtual disk or reconfigure a virtual disk.

This article explains the procedure to open a Service Request (SR) using the Dell support page. Get help fast for your Dell device. No more waiting on hold. No more tech headaches. Dell makes it simple to fix problems, schedule repairs, or get support—right from your device or our support website.

Linux host reports reduced storage performance when using PERC or HBA controllers with attached SSD or NVMe devices.

This article provides instructions on how to assign a hard drive as a global hot-spare on a PowerEdge RAID Controller (PERC)

This article provides information about various battery error codes, their possible causes, and examples.

This article provides information about how to import a foreign configuration RAID array on the system setup (F2) menu.

When encryption is enabled on BOSS-N1, the system may stop during POST with the message: "No Boot Device Available or Operating System Detected."

This article addresses an issue with cache memory handling on PERC10 controllers.

Questions about Dell PowerEdge RAID controller cards and drive manipulations are answered here with tutorials.

The message seen is "Dell PERC Controller - Bus 24 Dev 0: F/W has indicated a system reset is required. The system reboots in 5 seconds." is the interrupted cache offload print. This print is not seen in PERC9 and PERC11. Fully completing the offload on PERC 10 before powering on prevents behavioral differences between PERC 9 and 11, and avoids the additional reset print.

This article explains how to export the RAID controller log (TTYlog) directly from OpenManage Server Administrator (OMSA) using the interface or using the command lines.

This article explains how to create a Virtual Disk using the System Settings menu.

This article explains how to download, install, and use the Dell PowerEdge RAID Controller (PERC) Command-Line Interface (CLI) utility to manage your RAID controller. The utility is supported on PERC Series 8 and later family controllers on hosts running Windows, Linux, or ESXi. PERCCLI can also extract RAID controller logs which contain information that allows you or Dell Technical Support to determine the status of RAID controllers and the connected storage devices to narrow down possible sources of error.

This article explains how to use commands to gather smart logs.

This article provides information about the battery learn cycle. It consists of a controller performed battery calibration operation to periodically determine the condition of the battery. This operation cannot be disabled.

This article provides information about Intelligent Mirroring and Enhanced RAID 10.

Learn about Dell PERC features.

This article explains how to resolve an issue where a full initialization on a Virtual Disk (VD) does not cover it entirely in specific configurations. The issue has been discovered for H740P, H840, and H745P MX (PERC10) controllers.

This article provides the information of how to assign or unassign a global dedicated hot spare for a hard drive.

Dell Technical solutions information about various topics, hosted on the Dell TechCenter IT community platform

This article explains how to load the PERC driver during Windows 2022 Installation. Without the PERC driver loaded, the installation wizard cannot find a storage location

This article provides instructions for the management and configuration of RAID arrays on a LSI MegaRAID 9361-8i, 9440, 9460, and 9341 RAID Controllers