Dell Technologies PowerEdge RAID Controller 11 User’s Guide PERC H755 adapter, H755 front SAS, and H755N front NVMe Part Number: UCPA-1101, UCPF-1100, and UCPF-1110 September 2020 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Dell Technologies PowerEdge RAID Controller 11.......................................................... 8 Features of PERC H755 adapter..................................................................................................................................... 9 Features of PERC H755 front SAS................................................................................................................................. 9 Features of PERC H755N front NVMe........................
Chapter 4: Install and remove a PERC 11 card.............................................................................. 27 Safety instructions............................................................................................................................................................ 27 Before working inside your system............................................................................................................................... 27 After working inside your system...........
Manage controller profile...........................................................................................................................................48 Advanced controller properties................................................................................................................................49 Virtual disk management.................................................................................................................................................
Preserved Cache State....................................................................................................................................................69 Security key errors............................................................................................................................................................69 Secured foreign import errors..................................................................................................................................
Receiving automated support with SupportAssist ................................................................................................... 81 Chapter 12: Documentation resources.........................................................................................
1 Dell Technologies PowerEdge RAID Controller 11 Dell Technologies PowerEdge RAID Controller 11, or PERC 11 is a series of RAID disk array controllers made by Dell for its PowerEdge servers.
Features of PERC H755 adapter Figure 1. Features of PERC H755 adapter 1. Heatsink 3. Battery 5. Backplane connector B 2. PCIe connector 4. Backplane connector A 6. Battery cable connector Features of PERC H755 front SAS Figure 2. Features of PERC H755 front SAS 1. Battery 3. Power card edge connector 5. Backplane connector A 2. PCIe input connector 4. Heatsink 6.
7. Battery cable connector Features of PERC H755N front NVMe Figure 3. Features of PERC H755N front NVMe 1. 3. 5. 7. 10 Battery Power card edge connector Backplane connector A Battery cable connector Dell Technologies PowerEdge RAID Controller 11 2. PCIe cable connector 4. Heatsink 6.
Technical specifications of PERC 11 cards The table below lists and describes the different PERC 11 cards series and their specifications: Table 1.
NOTE: For the latest list of supported operating systems and driver installation instructions, see the operating system documentation at www.dell.com/operatingsystemmanuals. For specific operating system service pack requirements, see the Drivers and Downloads section at www.dell.com/manuals.
2 Applications and User Interfaces supported by PERC 11 PERC 11 card Management applications include the Comprehensive Embedded Management (CEM), Dell OpenManage Storage Management, The Human Interface Infrastructure (HII) configuration utility, and The PERC Command Line Interface (CLI). They enable you to manage and configure the RAID system, create and manage multiple disk groups, control and monitor multiple RAID systems, and provide online maintenance.
The PERC Command Line Interface The PERC Command Line Interface (CLI) is a storage management application. This utility allows you to set up, configure, and manage your Dell PowerEdge RAID Controller (PERC) by using the Command Line Interface (CLI). NOTE: For more information, see Dell EMC PowerEdge RAID Controller CLI Reference Guide at www.dell.com/ storagecontrollermanuals.
3 Features of PowerEdge RAID Controller 11 Topics: • • • • Controller features Virtual disk features Hard drive features Fault tolerance Controller features This section lists the following controller features supported on Dell Technologies PowerEdge RAID Controller 11 cards in detail: ● ● ● ● ● ● ● ● ● ● ● ● Non-Volatile Memory Express Opal Security Management Hardware Root of Trust 1 MB I/O Auto Configure RAID 0 Disk roaming FastPath Non–RAID disks Physical disk power management Profile Management Secu
Opal Security Management Opal Security Management of Opal SED drives requires security key management support. You can use the application software or The Integrated Dell Remote Access Controller (iDRAC) to generate the security key that is set in the Opal drives and used as an authentication key to lock and unlock the Opal drives.
Using disk roaming About this task Perform the following steps to use disk roaming: Steps 1. Turn off the power to the system, physical disks, enclosures, and system components. 2. Disconnect power cables from the system. 3. Move the physical disks to desired positions on the backplane or the enclosure. 4. Perform a safety check. Make sure the physical disks are inserted properly. 5. Turn on the system. Results The controller detects the RAID configuration from the configuration data on the physical disks.
Secure firmware update This feature provides a cryptographic method of updating the firmware using an RSA encryption-decryption algorithm. Only Dell-certified firmware is supported on your PERC controller. Snapdump The Snapdump feature provides the Dell support team with the debug information which can help to find the cause of firmware failure.
Conditions under which forced write-back with no battery is employed CAUTION: It is recommended that you use a power backup system when forcing write-back to ensure there is no loss of data if the system suddenly loses power. Write-back mode is available when you select force write-back with no battery. When forced write-back mode is selected, the virtual disk is in write-back mode even if the battery is not present.
CAUTION: Initializing virtual disks erases files and file systems while keeping the virtual disk configuration intact. Full initialization Performing a full initialization on a virtual disk overwrites all blocks and destroys any data that previously existed on the virtual disk. Full initialization of a virtual disk eliminates the need for the virtual disk to undergo a Background Initialization (BGI). Full initialization can be performed after the virtual disk is created.
See the following table for a list of RLM or OCE options: The source RAID level column indicates the virtual disk RAID level before the RLM or OCE operation and the target RAID level column indicates the RAID level after the RLM or OCE operation. Table 6. RAID level migration Source RAID Level Target RAID Level Number of Physical Disks (Beginning) Number of Physical Disks (End) Capacity Expansion Possible Description RAID 0 RAID 0 1 or more 2 or more Yes Increases capacity by adding disks.
Background operations Background initialization Background initialization (BGI) is an automated process that writes parity or mirror data on newly created virtual disks. BGI does not run on RAID 0 virtual disks. You can control the BGI rate in the Dell OpenManage storage management application. Any change to the BGI rate does not take effect until the next BGI is executed. NOTE: ● You cannot disable BGI permanently. If you cancel BGI, it automatically restarts within five minutes.
Instant secure erase Instant Secure Erase (ISE) drives use the same encryption technology as SED drives but do not allow the encryption key to be secured. The encryption technology allows the drive to be re-purposed and securely erased using the cryptographic erase function. NOTE: ISE drives do not provide protection against theft. 4 KB sector disk drives PERC 11 controllers support 4 KB sector disk drives, which enables you to efficiently use the storage space.
Patrol Read The Patrol read feature is designed as a preventative measure to ensure physical disk health and data integrity. Patrol read scans and resolves potential problems on configured physical disks. The Dell storage management applications can be used to start patrol read and change its behavior. The following is an overview of patrol read behavior: ● Patrol read runs on all disks on the controller that are configured as part of a virtual disk, including hot spares.
Table 7. Drive state/operation (continued) Drive state/operation Unconfigured slot Slot configured in VD ● Rebuild or copyback start ● Original drive data lost Insert locked drive into the system (non-unlockable) Foreign locked Foreign locked Physical disk hot swapping Hot swapping is the manual replacement of a disk while the PERC 11 series cards are online and performing their normal functions.
Cache preservation with non–volatile cache The non–volatile cache (NVC) allows controller cache data to be stored indefinitely. If the controller has data in the cache memory during a power outage or improper system shutdown, a small amount of power from the battery is used to transfer the cache data to non-volatile flash storage where it remains until power is restored and the system is booted.
4 Install and remove a PERC 11 card Topics: • • • • • • • • • Safety instructions Before working inside your system After working inside your system Remove the PERC H755 adapter Install the PERC H755 adapter Remove the PERC H755 front SAS card Install the PERC H755 front SAS card Remove the PERC H755N front NVMe card Install the PERC H755N front NVMe card Safety instructions NOTE: To avoid injury, do not lift the system on your own. Get others to assist you.
4. Remove the system cover. After working inside your system Steps 1. Replace the system cover. 2. If applicable, install the system into the rack. For more information, see the Rail Installation Guide relevant to your rail solutions at www.dell.com/poweredgemanuals. 3. Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system. Remove the PERC H755 adapter Prerequisites CAUTION: Many repairs may only be done by a certified service technician.
Figure 4. Remove the PERC H755 adapter Install the PERC H755 adapter Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
Figure 5. Install the PERC H755 adapter Remove the PERC H755 front SAS card Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
8. Take the replacement storage controller and reconnect the cables before reconnecting it to the backplane. If you are removing a PERC H755 front SAS controller in the upside down orientation, reattach the PERC controller to the backplane first before reinstalling the backplane into the system. For more information on installing the card, see Install the PERC H755 front SAS card. 9. Close the system. 10.
CAUTION: To prevent damage to the card, hold the card by its edges only. 4. Align the carrier with the guide pins until the controller is securely seated. 5. Slide the card into the connector until it is fully seated in the connector. Tighten the screws on the carrier that connect to the chassis to secure the carrier. 6. Connect the cable connectors to the card. NOTE: Ensure that you connect the cable according to the connector labels on the cable. The cable does not function properly if reversed. 7.
Steps 1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and peripherals. 2. Open the system. 3. Locate the PERC card in the controller carrier at the front of the system. CAUTION: To prevent damage to the card, you must hold the card by its edges only. 4. Unscrew the fasteners on the controller carrier, and slide the carrier away from the backplane to disconnect the controller from the backplane.
Figure 8. Remove the PERC H755N front NVMe card Install the PERC H755N front NVMe card Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
NOTE: Ensure that you connect the cable according to the connector labels on the cable. The cable does not function properly if reversed. 7. Close the system. 8. Reconnect the system to its electrical outlet and turn on the system and any attached peripherals. Figure 9.
5 Driver support for PERC 11 The PERC 11 series require software drivers to operate with the supported operating systems. This chapter contains the procedures for installing the drivers for the PERC 11 cards. NOTE: The driver for PERC 11 for VMware ESXi is packaged within the VMware ESXi ISO image downloaded from Dell. For more information, see the VMware documentation at www.dell.com/virtualizationsolutions. It is not recommended to have drivers from controllers prior to PERC 11 on the same system.
Steps 1. Insert the Dell Systems Service and Diagnostics Tools media in your system. The Welcome to Dell Service and Diagnostic Utilities screen is displayed. 2. Select your system model and operating system. 3. Click Continue. 4. From the list of drivers displayed, select the driver you require. 5. Select the self-extracting ZIP file and click Run. 6. Copy the driver to a CD, DVD, or USB drive. 7. Repeat steps 1 to 6 for all the drivers you require.
5. On the Locate device driver screen, select Search for a suitable driver for my device and click Next. 6. Browse and select the drivers from the Locate Driver Files screen. 7. Click Next. The wizard detects and installs the appropriate device drivers for the new RAID controller. 8. Click Finish to complete the installation. 9. Reboot the system when prompted.
Install or update a RPM driver package using the KMOD support Prerequisites NOTE: This procedure is applicable for Red Hat Enterprise Linux 7.x and higher. About this task Perform the following steps to install the RPM package with KMOD support: Steps 1. Uncompress the gzipped tarball driver release package. 2. Install the driver package using the command: rpm –ihv kmodmegaraid_ sas-.rpm. NOTE: Use rpm -Uvh when upgrading an existing package. 3.
Loading the driver while installing an operating system Steps 1. Perform the following operation to install the driver media: a. Download the PERC linux driver ISO, or install the LC driver pack. b. Mount the ISO to the Server, burn the ISO to CD/DVD, or copy the ISO file to USB. The USB has to match with the ISO. c. For LC driver pack, boot the life-cycle controller and go through the operating system deployment wizard. 2. Boot to the installer. 3. In the Installation screen, press E. 4.
6 Firmware This section provides information about downloading and installing the firmware using Dell Update Package (DUP). Topics: • Install the PERC 11 firmware using Dell Update Package (DUP) Install the PERC 11 firmware using Dell Update Package (DUP) Steps 1. Navigate to www.dell.com/support/home. 2. Locate your controller. 3. Download the DUP. a. For Window/iDRAC update, download Windows executable file. b. For Linux update, download .bin file.
7 Manage PERC 11 controllers using HII configuration utility The Human Interface Infrastructure (HII) configuration utility is a storage management application integrated into the System BIOS . It is used to configure and manage the controller(s), virtual disks, and physical disks. This utility is independent of the operating system.
Navigate to Dell PERC 11 configuration utility Steps 1. Enter the UEFI configuration Utility. See Enter the PERC 11 HII configuration utility on page 42. The Device Settings screen displays a list of NIC ports and the RAID controllers. 2. To enter PERC 11 configuration utility, click the appropriate PERC controllers. The Dashboard view screen is displayed.
Configuration management Auto Configure RAID 0 Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Configuration Management > Auto Configure RAID 0. 3. Select Confirm and click Yes to continue. A RAID 0 Virtual disk is created on all physical disks that are in Ready state. Create virtual disks Steps 1. Enter the Dell PERC 11 Configuration Utility. See, Navigate to Dell PERC 11 configuration utility. 2.
The Configure Virtual Disk Parameters section is displayed on the Create Virtual Disk screen. 2. In the Configure Virtual Disk Parameters section, you can set the following virtual disk parameters: Table 9. Configure virtual disk parameters Virtual disk parameters Description Virtual Disk Name Allows you to enter the name for the virtual disk NOTE: Allowed characters are A-Z, a-z, 0-9, underscore (_), and hyphen (-) only.
● Web/Generic Server ● Database 3. Based on the RAID mode selected, one or more the physical disk selection criteria is displayed. 4. From the Physical Disk Selection Criteria drop-down box, select a criterion based your requirement. The Profile Parameters of the selected option is displayed. 5. Click Create Virtual Disk. 6. Select Confirm and click Yes to continue. The virtual disk is created with the parameters of the profile selected. View disk group properties Steps 1.
Controller management Clear controller events Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Controller Management > Advanced Controller Management. 3. Click Clear Controller Events. A screen is displayed asking if you are sure you want to clear the controller events. 4. Select Confirm and click Yes to continue. Save controller events Steps 1. Enter the Dell PERC 11 Configuration Utility.
2. Click Main Menu > Controller Management > Advanced Controller Management. 3. Click Disable security. A screen is displayed asking if you are sure you want to disable security. 4. Select Confirm and click Yes to continue. The operation is successful and click Ok. Change security settings Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Controller Management > Advanced Controller Management. 3.
Advanced controller properties Set the patrol read mode Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Controller Management > Advanced Controller Properties. 3. Click Patrol Read. The following options are displayed: ● ● ● ● Start—Starts patrol read for the selected controller. Suspend—Suspends the ongoing patrol read operation on the controller. Resume—Resumes the suspended patrol read operation.
3. Click Task Rates. The following options are displayed: ● ● ● ● Background Initialization (BGI) Rate Consistency Check Rate Rebuild Rate Reconstruction Rate 4. You can make the necessary changes and then click Apply Changes. The task rates operation is completely successfully. Properties of Enterprise Key Management (EKM) Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Controller Management > Advanced Controller Properties.
3. In the Controller Properties section, select boot mode from the Boot Mode drop-down box. The following lists of boot mode options appear: Table 10. Boot mode options Option Description Stop on errors The system stops during boot for errors which require attention from the user to rectify the issue. Pause on errors System pauses during boot to show errors but continue boot after it times out.
In Select Boot Device, you will not be able to view 4 K sector drives. To view all the virtual disks created, navigate to the Virtual Disk Management screen in HII. For more information, see Virtual disk management. If no boot device is selected, the first virtual disk will be set as the boot device on the next reboot. A Non–RAID disk is autoselected as the boot device, if the controller does not have any virtual disks present. NOTE: Select Boot Device is only applicable in legacy BIOS mode.
All the virtual disks associated with the RAID controller are displayed. 3. Click on a virtual disk. The properties of the virtual disk are displayed. 4. Click View Associated Physical Disks. All the physical disks that are associated with the virtual disk are displayed. 5. From the Associated Physical Disks section, select the physical disk. 6. Click View Physical Disk Properties to view the physical disk properties. View physical disks associated with a virtual disk Steps 1.
Table 13. Virtual disk policies (continued) Option Description ● Default (Disk Default) ● Enable ● Disable 4. Click Apply Changes. The changes made are saved successfully. Configure Virtual Disks When configuring the virtual disks, you should consider the workload intended; RAID 1: for simple boot disk; RAID 5 or 6: for file or web servers (sequential reads/writes of files); RAID 10: for transactional database (small random reads and writes).
Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Virtual Disk Management. The list of virtual disks is displayed. 3. Select the virtual disk. NOTE: Consistency check cannot be run on RAID 0 virtual disks. 4. From the Operations drop-down menu, select Check Consistency. 5. Click Go. A screen is displayed asking if you are sure you want to perform the operation. 6. Select the Confirm option. 7. Click Yes.
Table 15.
Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Physical Disk Management. The list of physical disks is displayed. 3. Select a physical disk. 4. From the Operations drop-down menu, select Physical Disk Erase. NOTE: If the drive installed is neither SED or ISE capable, then only the Physical Disk Erase option is displayed. 5. Click Go. A screen is displayed asking if you are sure you want to perform the operation. 6.
Convert to RAID capable Prerequisites To convert a non–RAID disk to RAID capable disk from the HII Configuration Utility, perform the following steps: Steps 1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility. 2. Click Main Menu > Physical Disk Management. The list of physical disks appears. 3. Select the physical disk. 4. From the Operations drop-down menu, select Convert to RAID capable. 5. Click Go.
Table 16. Battery properties (continued) Field Description Temperature Displays the current temperature of the battery and also indicates whether the temperature is normal or high. Charge Displays the available charge of the battery in percentage. 4. Displays click Advanced.... The additional advanced properties of the physical battery are displayed. 5. You can view the following advanced properties of the battery: Table 17.
● The Physical Disk Management screen displays physical disk information and action menus. You can perform the following security-related actions through the physical disk management menu: ○ Secure non–RAID disk—Secures the non–RAID disk with the controller security key. ○ Cryptographic Erase—Permanently erases all data on the physical disk and resets the security attributes.
8 Security key and RAID management Topics: • • • • • • • • • • Security key implementation Local Key Management Create a security key Change Security Settings Disable security key Create a secured virtual disk Secure a pre-existing Non–RAID disk Secure a pre-existing virtual disk Import a secured virtual disk Dell Technologies OpenManage Secure Enterprise Key Manager Security key implementation The PERC 11 series of cards support self-encrypting disk (SED) for protection of data against loss or theft of S
6. If you want to use the passphrase generated by the controller, click Suggest Passphrase. Assigns a passphrase suggested by the controller automatically. 7. In the Passphrase field, enter the passphrase. NOTE: Passphrase is case-sensitive. You must enter minimum 8 or maximum 32 characters. Ensure that the characters contain at least one number, one lower case letter, one upper case letter, and one non-alphanumeric character. 8. In the Confirm field, re-enter the passphrase to confirm.
Create a secured virtual disk About this task To create a secured virtual disk, the controller must have a security key established first. See Create a security key. NOTE: Combining SAS and SATA hard drives within a virtual disk is not supported. Also, combining hard drives and olidstate drives (SSDs) within a virtual disk is not supported. Mixing of NVMe drives is not supported. After the security key is established, perform the following steps: Steps 1. Enter the Dell PERC 11 Configuration Utility.
4. Enter Passphrase if importing virtual disk with a different passphrase. 5. Select the Confirm option. 6. Click Yes. The foreign configuration is imported successfully. Dell Technologies OpenManage Secure Enterprise Key Manager This feature allows the PERC to receive a security key from a remote server instead of saving the key on a local controller. This protects data on secured disks under the PERC if the disks or entire system is stolen. Refer to the www.dell.
Manage virtual disks in enterprise key manager mode Virtual disks are managed in the same way in enterprise key manager mode as in local key manager mode. SED capable virtual disks can be secured during or after creation. See Create a secured virtual disk. Manage non–RAID disks in enterprise key manager mode Non–RAID disks are managed in the same way in enterprise key manager mode as in local key manager mode. SED capable non– RAID disks can be secured after creation. See Create a secured virtual disk.
9 Troubleshooting To get help with your Dell Technologies PowerEdge RAID Controller 11 series, you can contact your Dell Technical Service representative or see https://www.dell.com/support.
Probable Cause: The message indicates that some configured disks were removed. If the disks were not removed, they are no longer accessible. The cables from the PERC controller to the backplane might be improperly connected. Corrective Action: Check the cable connections and fix issues if any. Restart the system. If there are no cable problems, press any key or to continue. Dirty cache data error message Error Message: The following virtual disks are missing: (x).
Windows operating system installation errors Ensure that you perform the following step before installing Windows on 4 KB sector drives: 1. Read and understand the updates to the version of Windows that you have installed. You can find this information in the Microsoft help. For more information, see Microsoft support policy for 4 K sector hard drives in Windows. Firmware fault state error message Error Message: Firmware is in Fault State. Corrective Action: Contact Global Technical Support.
Multi-bit errors are more serious as they result in corrupted data and data loss. The following are the actions that occur in the case of multi-bit errors: ● If a multi-bit error occurs while accessing data in the cache when the controller is started with dirty cache, the controller discards the cache contents. The controller generates a warning message to the system console to indicate that the cache was discarded and generates an event.
Failure of Cryptographic Erase task on secured physical disks Cryptographic Erase is the process of securely erasing all data permanently on an encryption-capable physical disk and resetting the security attributes. It is used in a couple of scenarios such as deleting a foreign configuration in the event of a forgotten or lost passphrase or unlocking a disk that had been previously locked.
Multiple disks are inaccessible Issue: Multiple disks are simultaneously inaccessible. Probable Cause: Multiple physical disk errors in a single array typically indicate a failure in cabling or connection and could involve the loss of data. Corrective Action: You can recover the virtual disk after multiple physical disks become simultaneously inaccessible. Perform the following steps to recover the virtual disk: CAUTION: Follow the safety precautions to prevent electrostatic discharge. 1. 2. 3. 4. 5.
Redundant virtual disk fails during reconstruction Issue: Multiple disks fails during a reconstruction process on a redundant virtual disk that has a hot spare. Probable Cause: Multiple physical disks in the virtual disk is failed or the cables are disconnected. Corrective Action: No action is required. The physical disk to which a reconstruction operation is targeted reverts to Ready state, and the virtual disk goes to Failed state.
1. Back up your data. 2. Replace the affected physical disk with a new physical disk of equal or higher capacity. 3. Restore from the backup. Smart error detected on a physical disk in a non–redundant virtual disk Issue: A SMART error is detected on a physical disk in a non–redundant virtual disk. Corrective Action: Perform the following steps: 1. Back up your data. 2. Use Replace Member to replace the disk manually.
Target disk fails during replace member operation Issue: The target disk failure reported during the Replace Member operation, and the Replace Member operation stops. Probable Cause: Physical disk failure or physical disk is removed or disconnected. Corrective Action: It is recommended that you replace or check the target drive, and restart the Replace Member operation or perform the operation on a different target drive.
Drive indicator codes The LEDs on the drive carrier indicates the state of each drive. Each drive carrier has two LEDs: an activity LED (green) and a status LED (bicolor, green/amber). The activity LED blinks whenever the drive is accessed. Figure 10. Drive indicators 1. Drive activity LED indicator 2. Drive status LED indicator 3. Drive capacity label If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not power on.
Corrective Action: 1. Check if the cables are connected properly, or replace missing hard drives, if any and then restart the system. 2. Press any key to load the driver health manager to display the configurations. The Driver Health Manager displays the driver(s), which requires configuration. 3. Alternately, if the UEFI driver requires configuration, press any key to load the Configuration Utility.
10 Appendix RAID description RAID is a group of independent physical disks that provides high performance by increasing the number of disks used for saving and accessing data. CAUTION: In the event of a physical disk failure, a RAID 0 virtual disk fails, resulting in data loss. A RAID disk subsystem offers the following benefits: ● Improved I/O performance and data availability. ● Improved data throughput because several disks are accessed simultaneously.
NOTE: The maximum number of virtual disks is currently limited to 192, because of the supported enclosure configuration. RAID terminology Disk striping Disk striping allows you to write data across multiple physical disks instead of just one physical disk. Disk striping involves partitioning each physical disk storage space in stripes of the following sizes: 64 KB, 128 KB, 256 KB, 512 KB, and 1 MB. The stripes are interleaved in a repeated sequential manner.
Parity data Parity data is redundant data that is generated to provide fault tolerance within certain RAID levels. In the event of a disk failure, the parity data can be used by the controller to regenerate user data. Parity data is present for RAID 5, 6, 50, and 60. The parity data is distributed across all the physical disks in the system. If a single physical disk fails, it can be rebuilt from the parity and the data on the remaining physical disks.
11 Getting help Topics: • • • • Recycling or End-of-Life service information Contacting Dell Locating the Express Service Code and Service Tag Receiving automated support with SupportAssist Recycling or End-of-Life service information Take back and recycling services are offered for this product in certain countries. If you want to dispose of system components, visit www.dell.com/recyclingworldwide and select the relevant country.
Figure 15. Locating the Express Service Code and Service tag 1. Information tag (front view) 3. OpenManage Mobile (OMM) label 5. Service Tag, Express Service Code, QRL label 2. Information tag (back view) 4. iDRAC MAC address and iDRAC secure password label The Mini Enterprise Service Tag (MEST) label is located on the rear of the system that includes Service Tag (ST), Express Service Code (Exp Svc Code), and Manufacture Date (Mfg. Date).
12 Documentation resources This section provides information about the documentation resources for your system. To view the document that is listed in the documentation resources table: ● From the Dell EMC support site: 1. Click the documentation link that is provided in the Location column in the table. 2. Click the required product or product version. NOTE: To locate the product name and model, see the front of your system. 3. On the Product Support page, click Manuals & documents.
Table 20. Additional documentation resources for your system (continued) Task Managing your system Document Location For information about installing the operating system, see the operating system documentation. www.dell.com/operatingsystemmanuals For information about updating drivers and firmware, see the Methods to download firmware and drivers section in this document. www.dell.
