LSI Logic PERC 4/DC, v.351S, A05

Dell PowerEdge RAID Controller 4/DC firmware and update script for for IA-64 based platforms. The update script runs under EFI.

Version: 351S

Fixes & Enhancements

Current Firmware - 351S
(Previous - 350O)

Current BIOS - 1.10
(Previous - 1.09)

Current Ctrl-M - U827
(Previous - U821)

Current Boot Block - 1.7.7Dell
(Previous - 1.7.6Dell)


1. Fixed an issue that optimized cache flush algorithms while switching between no read-ahead to read-ahead cache modes.
2. Modified the Fast Initialization function to delete all operation system partition table information.
3. Fixed an issue where a Seagate hard drive model M3637 was not negotiating correctly with PERC 4 adapters.
4. Fixed a SES Timeout error caused by a media error recovery defect in cluster mode on a PERC4/DC and a PERC3/DC.
5. Modified Ctrl-M to clear physical drive media error count upon drive replacement.
Note: System must be powered on during the drive replacement in order for media errors to be cleared.
6. Modified caching algorithms to not switch from Write-back to Write-through during a battery fast charge.
7. Fixed a performance degradation issue when using RAID 10 virtual disks, when configured to use no read ahead or write caching and direct IO on PERC4 controllers.


1. Added Patrol Read feature. Patrol Read involves the review of the system for possible hard drive errors that could lead to drive failure, then action to correct the errors. The goal is to protect data integrity by detecting physical drive failures before the failures can damage data. Patrol Read adjusts the amount of RAID controller resources dedicated to Patrol Read operations based on outstanding disk I/O.
2. Added Rebuild Checkpoint feature. The Dell PERC firmware has a feature to resume a rebuild on a physical drive in case of an abrupt power loss or if the server rebooted in the middle of a rebuild operation.
3. Enhanced write algorithms to increase I/O performance for RAID 5 and RAID 50 virtual disks using four or more disks that are configured to use write-through write cache mode.

Firmware upgrade while controller is doing background I/O task:
The firmware upgrade may fail if any of the RAID controllers in the system are performing an I/O background task. (ie. check consistency, background initialization, rebuild, or reconstruction). Allow the background task to complete before attempting to upgrade the firmware. Patrol Read tasks will not affect a firmware upgrade. Current RAID configuration will not be modified or cleared during the Firmware Upgrade process.


Version 351S, A05



Release date

07 Jun 2005

Last Updated

03 Nov 2011


Available formats

File Format:Rel-Notes-Text
File Name:perc4dc-IA64-351S-A05.txt
Download Type:HTTP
File Size: 5 KB
Format Description:This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
Not available
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File Format:Hard-Drive
File Name:R101840.EXE
Download Type:HTTP
File Size: 985 KB
Format Description:This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
Not available
Not available
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By downloading, you accept the terms of the Dell Software License Agreement.

Supported Operating Systems
Red Hat Ent Linux 3
Red Hat Ent Linux 4
Windows Server 2003
Applies to
Installation instructions
Instructions for R101840.EXE


1. Click the Download Now link to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Extract Files
1. Browse to the location where you downloaded the file and double-click the new file to unzip the download package
2. Click Continue.
3. Specify the location to unzip the files.
4. Click on the OK button to extract files.
After the files are extracted the message all files were successfully unzipped will appear.
5. Click the OK button to exit from the installer.


To update the firmware for your PERC 4/DC adapter, perform the following steps:
1. Extract the contents of the firmware package to your hardrive.
2. Copy the contents of the package to a formatted floppy disk, USB key, or CD-ROM.
3. Power on the server. From the EFI Boot Manager Menu, select EFI Shell.
4. Insert the media which contains the firmware update files from step 2.
This may be a USB key, floppy diskette (a USB floppy drive may be used), or CD-ROM.
5. At the Shell> prompt, type 'map -r' to view all mounted devices. Locate the device which contains the firmware update files - it will be enumerated as fs0, fs1, ect.
6. To change to the proper device, type 'fs1:'
NOTE: Your device may have a different file system number.
7. From the fs1:> prompt type 'percupd.nsh' to initiate the firmware update.
8. Follow the instructions from the EFI update tool to complete the firmware upgrade.
9. You will need to restart your system for the new firmware to take effect.

Custom Instructions for perc4dc-IA64-351S-A05.txt:

Download the readme file to view information about this release.
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).