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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. RAID level 5 combines distributed
parity with disk striping. Parity provides redundancy for one physical disk failure without duplicating the
contents of the entire physical disks.

RAID 6 combines dual distributed parity with disk striping. This level of parity allows for two disk failures
without duplicating the contents of entire physical disks.

Figure 8. Example of Distributed Parity (RAID 5)

NOTE: Parity is distributed across multiple physical disks in the disk group.

Figure 9. Example of Dual Distributed Parity (RAID 6)

NOTE: Parity is distributed across all disks in the array.

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Summary of Contents for PowerEdge H730P

Page 1: ...Dell PowerEdge RAID Controller PERC H730P For Dell PowerEdge R920 Systems User s Guide Regulatory Model UCPA 901 and UCPB 900 ...

Page 2: ...problem WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2014 Dell Inc All rights reserved This product is protected by U S and international copyright and intellectual property laws Dell and the Dell logo are trademarks of Dell Inc in the United States and or other jurisdictions All other marks and names mentioned herein may be trademarks of their res...

Page 3: ...kground Initialization 18 Consistency Checks 18 Disk Roaming 18 Using Disk Roaming 19 FastPath 19 Virtual Disk Migration 19 Migrating Virtual Disks 20 Virtual Disk Write Cache Policies 20 Conditions Under Which Write Back Is Employed 20 Conditions Under Which Forced Write Back With No Battery Is Employed 21 Virtual Disk Read Cache Policies 21 Reconfiguration Of Virtual Disks 21 Fault Tolerance 23 ...

Page 4: ...ux Driver 36 Installing Or Updating The RPM Driver Package With DKMS Support 36 Installing Or Updating The RPM Driver Package With KMOD Support 36 Installing Or Updating The RPM Driver Package With KMP Support 37 5 Management Applications For PERC Cards 39 Comprehensive Embedded Management 39 Dell OpenManage Storage Management 39 BIOS Configuration Utility 40 Entering The BIOS Configuration Utilit...

Page 5: ...alization 59 Performing A Manual Rebuild Of An Individual Physical Disk 60 Controller Management 60 Enabling Boot Support 60 Enabling Boot Support For A BIOS Enabled Controller 61 Enabling BIOS Stop On Error 61 Disabling BIOS Stop On Error 61 Enabling Auto Import 61 Disabling Auto Import 62 Restoring Factory Default Settings 62 UEFI RAID Configuration Utility 62 Entering The UEFI RAID Configuratio...

Page 6: ...4 Virtual Disks Degraded Error Message 74 Virtual Disks Partially Degraded Error Message 74 Memory Or Battery Problem Error Message 75 Firmware Fault State Error Message 75 Foreign Configuration Found Error Message 75 Foreign Configuration Not Found In Ctrl R Error Message 75 Previous Configuration Cleared Or Missing Error Message 76 Invalid SAS Topology Detected Error Message 76 Configured Disks ...

Page 7: ...rs 81 Source Disk Fails During Replace Member Operation 82 Target Disk Fails 82 General Disk Fails 82 Linux Operating System Errors 82 Virtual Disk Policy Is Assumed As Write Through Error Message 82 Driver Does Not Auto Build Into A New Kernel 83 Unable To Register SCSI Device Error Message 83 Disk Carrier LED Indicators 83 8 Using PERC CLI 85 Using CLI Commands From Windows Command Prompts 85 Us...

Page 8: ...sult 92 Displaying Physical Drive Details For The Specified Slot In The Controller 93 SyntaxDescription 93 Result 94 Displaying Boot Drive For The Controller 95 SyntaxDescription 95 Result 95 Setting Virtual Drive As Boot Drive 95 SyntaxDescription 95 Result 96 Locating A Drive 96 SyntaxDescription 96 Result 96 Stopping A locate Operation 96 SyntaxDescription 96 Result 96 9 Appendix RAID Descripti...

Page 9: ...Contacting Dell 101 Documentation Feedback 101 Locating Your System Service Tag 101 ...

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Page 11: ...Provides reliability high performance and fault tolerant disk subsystem management Supports operating system installation on 4KB drives using Unified Extensible Firmware Interface UEFI NOTE BIOS does not support operating system installation on 4KB drives The following table provides PERC H730P hardware specifications Table 1 Hardware Specifications for PERC H730P Specification PERC H730P RAID lev...

Page 12: ...iver installation instructions see the system documentation at dell com support manuals For specific operating system service pack requirements see the Drivers and Downloads section at dell com support manuals Getting Started With Your PERC Card 1 Unpack your PERC H730P card 2 Cable the PERC card inside the Dell PowerEdge R920 system See Deploying The PERC Card 3 Boot to the operating system 4 Dow...

Page 13: ...ll PowerVault documentation go to dell com powervaultmanuals Your product documentation includes Dell PowerEdge RAID Controller PERC H730P User s Guide For Dell PowerEdge R920 Systems The User s Guide discusses features installation management and troubleshooting of PERC cards 13 ...

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Page 15: ...against silent data corruption and ensures that incomplete and incorrect data do not overwrite good data Only Dell certified PI disks are supported NOTE PI is not supported on the SAS disks with 512 byte native and 512 byte emulated block size and SATA disks Enabling T10 PI To enable T10 PI 1 During host system boot press Ctrl R to access the BIOs Configuration Utility The Virtual Disk Management ...

Page 16: ...yte native and 512 byte emulated drives in a virtual disk is allowed But mixing 512 byte and 4KB native block size drives in a virtual disk is not allowed Physical Disk Power Management Physical disk power management is a power saving feature of the PERC H730P card The feature allows disks to be spun down based on disk configuration and I O activity The feature is supported on all rotating SAS and...

Page 17: ...forming 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 During full initialization the host cannot access the virtual disk You ...

Page 18: ...stency Check CC and BGI perform similar functions in that they both correct parity errors However CC reports data inconsistencies through an event notification but BGI does not You can start CC manually but not BGI Consistency Checks Consistency Check CC is a background operation that verifies and corrects the mirror or parity data for fault tolerant virtual disks It is recommended that you period...

Page 19: ...loads like OLTP a RAID 10 array provides high performance and for sequential read dominate workloads a RAID5 array provides high performance NOTE Only IO block sizes smaller than virtual disk s stripe size are eligible for FastPath NOTE The Physical Disk Power Management feature is not applicable to FastPath capable virtual disks Virtual Disk Migration The PERC H730P card supports migration of vir...

Page 20: ...write cache policy of a virtual disk determines how the controller handles writes to the virtual disk The write cache policies are Write Back The controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction The controller then writes the cached data to the storage device in the background NOTE The default cache setting for virt...

Page 21: ...ce until the reconfiguration operation is complete Online Capacity Expansion OCE can be done in two ways If there is a single virtual disk in a disk group and free space is available the virtual disk s capacity can be expanded within that free space If a virtual disk is created and it does not use the maximum size of the disk group free space is available Free space is also available when a disk g...

Page 22: ...ne disk RAID 0 RAID 5 1 or more 3 or more Yes At least one disk needs to be added for distributed parity data RAID 0 RAID 6 1 or more 4 or more Yes At least two disks need to be added for dual distributed parity data RAID 1 RAID 0 2 2 or more Yes Removes redundancy while increasing capacity RAID 1 RAID 5 2 3 or more Yes Maintains redundancy while doubling capacity RAID 1 RAID 6 2 4 or more Yes Two...

Page 23: ...capacity by adding disks NOTE The total number of physical disks in a disk group cannot exceed 32 You cannot perform RAID level migration and expansion on RAID levels 10 50 and 60 Fault Tolerance The PERC H730P card supports the following Self Monitoring and Reporting Technology SMART Patrol Read Physical disk failure detection Physical disk rebuild using hot spares Controller cache preservation B...

Page 24: ...ember operation as the target disk the hot spare reverts to the hot spare state after a successful Replace Member operation NOTE To enable the automatic Replace Member use the Dell OpenManage storage management application For information on manual Replace Member see Replacing An Online Physical Disks Patrol Read The Patrol Read feature is designed as a preventative measure to ensure physical disk...

Page 25: ...ns The following requirements must be met before hot swapping a physical disk The system backplane or enclosure must support hot swapping for the PERC H730P card to support hot swapping The replacement disk must be of the same protocol and disk technology For example only a SAS hard drive can replace a SAS hard drive and only a SATA SSD can replace a SATA SSD Using Replace Member And Revertible Ho...

Page 26: ...rred 1 Restore the system power 2 Boot the system 3 To enter the BIOS Configuration Utility select Managed Preserved Cache in the controller menu If there are no virtual disks listed all preserved cache data has been written to the disk successfully Non RAID Disks Support By default all the disks are in RAID capable unconfigured state The user can also convert the RAID capable disks to non RAID di...

Page 27: ... is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the system NOTE For information on removing and reinstalling system parts see the Dell PowerEdge R920 Owner s Manual at dell com poweredgemanuals This section provides a set of high level installation and removal instructions for the PERC H730P card PERC H730P Card Features Figure 1 Fe...

Page 28: ... system including any attached peripherals and disconnect the system from the electrical outlet and peripherals 2 Open the system 3 Remove the Network Daughter Card NDC riser 4 Locate the PERC H730P card next to the power supply bay under the clamp 5 Press and open the clamp CAUTION To prevent damage to the card you must hold the card by its edges only 6 Lift the card to remove it from the connect...

Page 29: ...entation 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 came with the product 1 Turn off the system including any attached peripherals and disconnect the system from the electrical outlet 2 Open the system 3 Remove the NDC riser 4 Lift the clamp at...

Page 30: ...r SAS A on the backplane and attach the connector labeled SAS B to connector SAS B on the backplane 10 Close the clamp 11 Install the NDC riser 12 Close the system 13 Reconnect the system to its electrical outlet and turn the system on including any attached peripherals Cabling The PERC H730P Card This section provides information about cabling the PERC H730P card on the the Dell PowerEdge R920 sy...

Page 31: ...nnector on the PERC H730P card 2 PERC H730P card 3 system board 4 cable management tray 5 x24 hard drive backplane 6 SAS B cable connector on the expander daughter card 7 backplane jumper cable connector on the expander daughter card 8 SAS jumper cable connector on the expander daughter card 9 SAS A cable connector on the expander daughter card 10 SAS jumper cable connector on the backplane 31 ...

Page 32: ...11 backplane jumper cable connector on the backplane 32 ...

Page 33: ...ating existing drivers Use this method if the operating system and the PERC H730P family of controllers are already installed and you want to update to the latest drivers Pre Installation Requirements For Windows Driver Installation Before you install the operating system Read the Microsoft Getting Started document that shipped with your operating system Ensure that your system has the latest BIOS...

Page 34: ...r line of business 3 In the Popular support tools section click Drivers and Downloads 4 Enter the service tag of your system in the Choose by Service Tag to get started field or select Choose from a list of all Dell products 5 Select the System Type Operating System and Category from the drop down list The drivers that are applicable to your selection are displayed 6 Download the drivers that you ...

Page 35: ...you update the driver 1 Insert the media CD DVD or USB drive containing the driver 2 Select Start Settings Control Panel System The System Properties screen is displayed NOTE The path to System might vary depending on the operating system family 3 Click on the Hardware tab 4 Click Device Manager The Device Manager screen is displayed NOTE The path to Device Manager might vary depending on the oper...

Page 36: ...dure is applicable for Red Hat Enterprise Linux 5 SP7 and SUSE Enterprise Linux 10 SP4 NOTE For SUSE Enterprise Linux 10 SP4 operating system installation download the latest driver from dell com support and update the driver using the procedures detailed in this section Perform the following steps to install the RPM package with DKMS support 1 Uncompress the gzipped tarball driver release package...

Page 37: ...that the driver is loaded with the following system commands modinfo megaraid_sas Upgrading The Kernel When upgrading to a new kernel you must reinstall the DKMS enabled driver packages Perform the following steps to update or install the driver for a new kernel 1 In a terminal window type the following dkms build m module_name v module version k kernel version dkms install m module_name v module ...

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Page 39: ... the system Provide accurate data Provide a specific location to access monitored data of the storage devices and network cards Dell OpenManage Storage Management The Dell OpenManage Storage Management is a storage management application for Dell systems that provides enhanced features for configuring a system s locally attached RAID and Non RAID disk storage The Dell OpenManage storage management...

Page 40: ...figuration 2 During startup press Ctrl R when prompted by the BIOS screen 3 Use the arrow keys to select the RAID controller you want to configure and press Enter to access the management menus for the controller If there is only one controller the Virtual Disk Management screen for that controller is displayed If there is more than one controller the main menu screen is displayed The screen lists...

Page 41: ...menu or to a higher level menu You can also use the up arrow key to close a menu list in a popup window such as the stripe element size menu Word wrap is supported Virtual Disk 1 Virtual Disk 4 down arrow key Use the down arrow key to move to the lower menu items within a menu or to a lower level menu You can also use the down arrow key to open a menu list in a popup window such as the stripe elem...

Page 42: ...eens display a glossary of topics you can use to access information about navigation RAID levels and general topics F1 F2 Press F2 to access the context menu which displays the list of options F2 F5 Press F5 to refresh the information on the screen F5 F11 Switch between two controllers F11 F12 Press F12 to display a list of controllers F12 Spacebar Press the spacebar to select an item Press the sp...

Page 43: ...the RAID level For more information see Summary Of RAID Levels Stripe Element Size Specifies the size of the segments written to each physical disk in a RAID 0 1 5 6 10 50 and 60 virtual disk You can set the stripe element size to 64 KB 128 KB 256 KB 512 KB or 1 MB The default and recommended stripe element size is 64 KB A larger stripe element size provides better read performance if your system ...

Page 44: ...see Security Key And RAID Management Perform the following steps to create a virtual disk 1 During host system bootup press Ctrl R after the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed Select a controller and press Enter The Virtual Disk Management screen is displayed for the selected controller 2 U...

Page 45: ...ress Tab to move the cursor to Read Policy 7 Press Enter to display the options No Read Ahead Read Ahead or Adaptive Read Ahead 8 Press the down arrow key to highlight the desired option and press Enter 9 To change the write policy press Tab to move the cursor to Write Policy 10 Press Enter to display the options Write Through Write Back 11 Press the down arrow key to highlight an option and press...

Page 46: ...e in the log Are you sure you want to continue Select Yes to proceed with running a CC Select No to terminate the operation Running A Data Consistency Check To perform a data consistency check 1 Press Ctrl N to access the VD Mgmt menu screen 2 Press the down arrow key to highlight Virtual Disk 3 Press F2 to display the menu of available actions 4 Press the down arrow key to select Consistency Chec...

Page 47: ...RAID controller You can use the Foreign Config screen to view information about the foreign configuration such as disk groups virtual disks physical disks space allocation and hot spares The foreign configuration data is displayed in the same format as configurations on the VD Mgmt screen You can use the VD Mgmt screen to view the foreign configuration before importing After you view the foreign c...

Page 48: ...uration View to display the complete virtual disk across different foreign configurations and allow foreign configurations to be imported b Press F2 to display the options Import and Clear NOTE You must have all the drives in the system before you perform the import operation c Select Import to merge the foreign configurations with the existing configuration on the controller or Clear to delete th...

Page 49: ...ed state until the missing member is replaced or rebuilt If there are any Global or Dedicated Hot Spare assigned which fulfills the rebuild requirements for the degraded RAID 1 disk a rebuild starts automatically If there is no hot spare assigned then an hot spare that meets all the requirements for the virtual disk must be assigned before the rebuild starts NOTE Importing a broken mirror is the s...

Page 50: ... create or delete dedicated hot spares 1 On the VD Mgmt screen select Disk Group and press F2 The available menu options are displayed 2 Select Manage Ded HS and press Enter A screen displays a list of the current dedicated hot spares with an X beside them and the physical disks that are available to create dedicated hot spares NOTE The utility allows only disks of the same disk technology and of ...

Page 51: ... utility also removes the virtual disks in that disk group To delete disk groups perform the following steps in the BIOS Configuration Utility Ctrl R 1 Press Ctrl N to access the VD Mgmt screen 2 Use the arrow keys to move the cursor to Virtual Disks 3 Press F2 The action menu is displayed 4 Select Delete Disk Group and press Enter The disk group is deleted NOTE When you delete a disk group the re...

Page 52: ...nagement The Virtual Disk Management screen VD Mgmt is the first screen that is displayed when you access a RAID controller from the main menu screen on the BIOS Configuration Utility Ctrl R The left panel displays the menus for the virtual disk management as given below Controller Consists of the sub menu item Disk Group which again has the following sub menu items Virtual Disks Physical Disks To...

Page 53: ...n progress Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Physical Disks Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Physical Disk Physical Disk Proper...

Page 54: ...s dedicated to a single redundant virtual disk Initialize a virtual disk Initializes the selected virtual disk You must initialize every virtual disk that is configured You can perform a fast initialization or a full initialization Check data consistency on a virtual disk Verifies the correctness of the redundancy data in the selected virtual disk The option is available only if RAID level 1 5 6 1...

Page 55: ...ate Disk Group Vendor Security Property of Physical Disk Encryption Capable Product ID Firmware Revision Disk Write Cache S M A R T state Physical Disk operation Max Device Link Rate Negotiated Link Rate Dell Certified Disk Physical Disk Actions The following table describes the actions you can perform on physical disks For procedures that can be used to perform the actions see Physical Disk Manag...

Page 56: ...during single disk failure with no I O Rates vary depending on type speed and number of hard drives present in array as well as which controller model and enclosure configuration are being used Table 9 Estimated Rebuild Rates RAID Level Number of Hard Drives 7 2 K rpm 6 Gb s SAS Hard Drive 15 K rpm 6 Gb s SAS Hard Drive RAID 1 2 320 GB hour 500 GB hour RAID 5 6 310 GB hour 480 GB hour RAID 10 6 32...

Page 57: ...Auto Import Attempts to import every online foreign configuration during boot without having the need to access the BIOS Configuration Utility Ctrl R Factory Default Select the option to restore the default settings for the options in the Settings box Foreign Configuration View When a foreign configuration is present you can select Foreign Configuration View to display the configuration The screen...

Page 58: ...physical disk Perform the following steps to create global hot spares 1 Press the down arrow key to highlight a physical disk to change to a global hot spare 2 Press F2 to display the menu of available actions 3 Press the down arrow key to highlight Make Global HS and press Enter The physical disk is changed to a global hot spare The status of the physical disk as a global hot spare is displayed u...

Page 59: ... and then press the spacebar to select the disk 7 Select OK to start the replacement NOTE The replacement disk must be a hot spare or an unconfigured disk without a foreign configuration It must have the same or greater capacity and should be of the same type as the disk it is replacing Restrictions and Limitations The following restrictions and limitations apply to the Replace Member operation Th...

Page 60: ...hted at the top of the menu 4 Press the right arrow key to display the rebuild options and select Start 5 After you start the rebuild press Esc to display the previous menu NOTE You can also use the VD Mgmt screen to perform a manual rebuild Use the arrow key to highlight a physical disk and press F2 In the menu that is displayed select the Rebuild option Controller Management Enabling Boot Suppor...

Page 61: ...s Tab to move the cursor to the Apply button and then press Enter to apply the selection The controller BIOS is enabled Disabling BIOS Stop On Error To disable BIOS stop on error 1 Use the spacebar to de select Enable BIOS Stop On Error 2 Select Apply and press Enter The BIOS Stop On Error is disabled Enabling Auto Import If there is a native configuration present on the controller the option Enab...

Page 62: ...that can be used to configure and manage RAID disk groups virtual disks and physical disks This utility is independent of the operating system NOTE Use the UEFI RAID Configuration Utility for initial setup and disaster recovery Certain advanced features are also offered in the utility Entering The UEFI RAID Configuration Utility To enter the UEFI RAID Configuration utility 1 Turn on the system 2 D...

Page 63: ...n serious errors Requires the user to either continue boot or enter the BIOS Configuration Utility to resolve errors Ignore errors The controller will take the default action for each error and will only halt boot when continuing is impossible Safe mode on errors The system will continue booting as long as the boot volume is not on this controller Drives connected to the controller will be reporte...

Page 64: ...acity allocation Reconfigure Virtual Disks Performs a RAID Level Migration RLM which converts a virtual disk to a different RAID level Physical Disk Management Menu The Physical Disk Management menu can be used to view and manage physical disks on the controller The following functions can be performed under Physical Disk Management Each of these functions is its own selectable menu option View Ph...

Page 65: ...wing section apply to the BIOS Configuration Utility Ctrl R For more information on the management applications see Management Application For PERC Cards The Virtual Disk Management screen VD Mgmt is the first screen that is displayed when you access a RAID controller from the main menu screen on the BIOS Configuration Utility Ctrl R The following are security related actions you can perform throu...

Page 66: ...h the controller 7 Press Tab to enter a passphrase CAUTION If you lose or forget your passphrase the data in your virtual disk is inaccessible 8 Press Tab and select OK to accept the settings Select Cancel to exit if you do not want to create a security key on the controller Changing The Security Key NOTE Change Key is active if there is a security key present on the controller Perform the followi...

Page 67: ...r and press Enter The Virtual Disk Management screen is displayed for the selected controller 3 Use the arrow keys to highlight Security Key Management 4 Press F2 to display the actions you can perform 5 Select the Delete Key and press Enter Creating Secured Virtual Disks To create a secured virtual disk the controller must have a security key established first See Creating Security Key NOTE Combi...

Page 68: ...eign secured virtual disk NOTE If you are importing secured and unsecured virtual disks you are prompted to resolve the secured foreign configuration first NOTE The PERC H730P card needs to have a security key present before being able to import a secured virtual disk NOTE Any unsecured virtual disks imported are still unsecured NOTE If you are importing a virtual disk originally secured with a lo...

Page 69: ...SEDs that are inaccessible blocked due to a lost or forgotten passphrase CAUTION By executing Instant Secure Erase the data on your encryption capable physical disk is lost To execute Instant Secure Erase 1 Press Ctrl N to access the PD Mgmt screen A list of physical disks is displayed On the right menu the physical disk properties are displayed including information about whether the physical dis...

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Page 71: ... Extra Enclosure Error Message Error Message There are X enclosures connected to connector Y but only maximum of 4 enclosures can be connected to a single SAS connector Please remove the extra enclosures then restart your system Probable Cause This message is displayed when the BIOS detects more than four enclosures connected to a single SAS connector Corrective Action You must remove all addition...

Page 72: ... believe these virtual disks should be present please power off your system and check your cables to ensure all disks are present Press any key to continue or C to load the configuration utility Probable Cause The message indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Correct...

Page 73: ... disk Int 13h is an interrupt signal that supports numerous commands that are sent to the BIOS and then passed to the physical disk The commands include actions you can perform with a physical disk such as reading writing and formatting Corrective Action Enable the ROM option Drive Configuration Changes Error Message Error Message Entering the configuration utility in this state will result in dri...

Page 74: ...when the BIOS detects virtual disks in a degraded state Corrective Action Take corrective action s to make the virtual disks optimal The BIOS does not take any action Virtual Disks Degraded Error Message Error Message x Virtual Disk s Degraded where x is the number of virtual disks degraded Probable Cause This message is displayed when the BIOS detects virtual disks in a degraded state Corrective ...

Page 75: ...ssage Foreign configuration s found on adapter Press any key to continue or C to load the configuration utility or F to import foreign configuration s and continue Probable Cause When a controller firmware detects a physical disk with existing foreign metadata it flags the physical disk as foreign and generates an alert indicating that a foreign disk was detected Corrective Action Press F at this ...

Page 76: ...f any Restart the system Configured Disks Removed Or Not Accessible Error Message Error Message Some configured disks have been removed from your system or are no longer accessible Check your cables and ensure all disks are present Press any key or C to continue Probable Cause The message indicates that some configured disks were removed If the disks were not removed they are no longer accessible ...

Page 77: ...S Configuration Utility Ctrl R to select whether to import the virtual disk or discard the preserved cache In the VD Mgmt menu select Manage Preserved Cache and follow the steps on the screen Security Key Errors Secured Foreign Import Errors A foreign configuration is a RAID configuration that already exists on a replacement physical disk that you install in a system A secured foreign configuratio...

Page 78: ...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 Instant Secure Erase can be executed only on encryption capable disks as long as the disks are not hot spares and are not configured part of a virtual disk Ensure that the conditions are met and see Instant Secure Erase Gene...

Page 79: ...al 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 Turn off the system check cable connections and reseat physical disks 2 Ensure that all the disks are present in the enclosure 3 Turn on the system and enter the BIOS Configuration Utility Ctrl R ...

Page 80: ...re Issue A virtual disk fails during rebuild while using a dedicated hot spare Description The dedicated hot spare reverts to Ready state and the virtual disk goes to Failed state Physical Disk Fails During Reconstruction On Redundant Virtual Disk Issue A physical disk fails during a reconstruction process on a redundant virtual disk that has a hot spare Corrective Action The dedicated hot spare r...

Page 81: ...ember operation NOTE The Replace Member operation allows you to copy data from a source physical disk of a virtual disk to a target physical disk that is not a part of the virtual disk For more information about the Replace Member feature see the topic Using Replace Member And Revertible Hot Spares Smart Error Detected On A Physical Disk In A Non Redundant Virtual Disk Issue A SMART error is detec...

Page 82: ...or Date Time HostName kernel sdb asking for cache data failed Date Time HostName kernel sdb assuming drive cache write through Corrective Action The error message is displayed when the Linux Small Computer System Interface SCSI mid layer asks for physical disk cache settings The controller firmware manages the virtual disk cache settings on a per controller and a per virtual disk basis so the firm...

Page 83: ...ear driver name driver version new kernel version installed Unable To Register SCSI Device Error Message Error smartd smartd 2338 Device dev sda Bad IEC SMART mode page err 5 skip device smartd 2338 Unable to register SCSI device dev sda at line 1 of file etc smartd conf Corrective Action This is a known issue An unsupported command is entered through the user application User applications attempt...

Page 84: ...Figure 5 Disk Carrier LED Indicators 1 activity LED 2 status LED 84 ...

Page 85: ... the Open field type cmd and click okay The Administrator Command Prompt window is displayed where you can execute the PERC CLI commands Using CLI Commands From Linux Follow these procedures to access the command prompt in systems using Linux operating system 1 To install the percli RPM run rpm ivh percli x xx x noarch rpm 2 To upgrade the percli RPM run rpm Uvh percli x xx x noarch rpm 3 Install ...

Page 86: ... Downgrades the controller cx Controller specific commands ex Enclosure specific commands sx Slot PD specific commands vx Virtual drive specific commands dx Disk group specific commands fall Foreign configuration specific commands px Physical specific commands bbu cv Battery Backup Unit Cachevault commands Checking Controller Availability Syntax perccli show Description Displays information about ...

Page 87: ...number of controllers detected in the server Result Status Code 0 Status Success Description None Controller Count 1 Displaying Free Space Information Syntax perccli c0 show freespace Description Displays the free space details in the controller Result Status Code 0 Status Success Description None FREE SPACE DETAILS Total Slot Count 0 ID Index DG Drive Group AftrVD Identify Freespace After VD Disp...

Page 88: ...ntax perccli c0 show Description Displays the current list of information about the adapter virtual disks drivers and so on Result Status Code 0 Status Success Description none Product Name PERC H730P Adapter Serial Number 38E005K SAS Address 5b8ca3a0f78d9000 Mfg Date 08 28 13 System Time 11 30 2013 05 12 51 Controller Time 11 30 2013 05 13 29 FW Package Build 25 2 0 0014 BIOS Version 6 12 00_4 12...

Page 89: ...t1 RW Yes RWTD 558 375 GB Test Physical Drives 9 PD LIST EID Slt DID State DG Size Intf Med SED PI SeSz Model Sp 32 0 0 Onln 0 558 375 GB SAS HDD Y Y 4 KB ST600MP0084 U 32 1 1 Onln 0 558 375 GB SAS HDD Y Y 4 KB ST600MP0084 U 32 2 2 Onln 1 558 375 GB SAS HDD Y N 512B ST600MP0054 U 32 3 3 Onln 0 558 375 GB SAS HDD Y Y 4 KB ST600MP0084 U 32 4 4 Onln 0 558 375 GB SAS HDD Y Y 4 KB ST600MP0084 U 32 5 5 ...

Page 90: ... Virtual Drive preserved Cache Data Cleared Displaying Expansion Information Syntax perccli c0 v0 show expansion Description Displays the expansion information on the virtual drive with and without array expansion Result Controller 0 Status Success Description None EXPANSION INFORMATION VD Size OCE NoArrExp WithArrExp Status 0 1 635 TB N OCE Online Capacity Expansion WithArrExp With Array Expansio...

Page 91: ...e NoVDs 0 RAID0 Frgn 372 0 GB 1 NoVDs Number of VDs in disk group DG Diskgroup Total foreign drive groups 1 Importing Foreign Configuration Syntax perccli c0 fall import Description Imports the foreign configurations for the specified controller Result Controller 0 Status Success Description Successfully imported foreign configuration Displaying BBU Information Syntax perccli c0 bbu show all Descr...

Page 92: ...No Remaining Capacity Low No Periodic Learn Required No Transparent Learn No No space to cache offload No Pack is about to fail should be replaced No Cache Offload premium feature required No Module microcode update required No GasGaugeStatus Property Value Fully Discharged Yes Fully Charged Yes Discharging No Initialized No Remaining Time Alarm No Remaining Capacity Alarm Yes Terminate Discharge ...

Page 93: ... 0 minutes s BBU_Design_Info Property Value Date of Manufacture 18 07 2011 Design Capacity 90 mAh Design Voltage 0 mV Specification Info 0 Serial Number 0 Pack Stat Configuration 0 Manufacture Name Device Name Device Chemistry Battery FRU N A Transparent Learn 1 App Data 0 Module Version 0 3 BBU_Properties Property Value Auto Learn Period 90d 7776000 seconds Next Learn time 2014 02 19 12 44 32 446...

Page 94: ...Size Sp Spun U Up D Down T Transition F Foriegn UGUnsp Unsupported Drive c0 e32 s4 Detailed Information Drive c0 e32 s4 State Shield Counter 0 Media Error Count 0 Other Error Count 0 Drive Temperature 43c 109 40F Predictive Failure Count 0 S M A R T alert flagged by drive No Drive c0 e32 s4 Device attribute SN S2G01H5T WWN 5000C5006B1A4FB8 Firmware Revision VB44 Raw size 558 911 GB 0x8bba5f6 Secto...

Page 95: ...5 54 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 43 6f 70 79 72 69 67 68 74 20 28 63 29 20 32 30 31 33 20 53 65 61 67 61 74 65 20 41 6c 6c 20 Displaying Boot Drive For The Controller Syntax perccli c0 show bootdrive Description Displays the boot drive for the controller The boot drive...

Page 96: ...Boot Drive On Success 0 Locating A Drive Syntax perccli c0 e32 s0 start locate Description Locates a drive and activates the physical disk activity LED Result Controller 0 Status Success Description Start Drive Locate Succeeded Stopping A locate Operation Syntax perccli c0 e32 s0 stop locate Description Stops a drive locate operation and deactivates the physical disk activity LED Result Controller...

Page 97: ...triping and parity data across all physical disks distributed parity to provide high data throughput and data redundancy especially for small random access RAID 6 is an extension of RAID 5 and uses an additional parity block RAID 6 uses block level striping with two parity blocks distributed across all member disks RAID 6 provides protection against double disk failures and failures while a single...

Page 98: ...k Disk mirroring provides complete redundancy but is an expensive option because each physical disk in the system must be duplicated NOTE Mirrored physical disks improve read performance by read load balance Figure 7 Example of Disk Mirroring RAID 1 Spanned RAID Levels Spanning is a term used to describe the way in which RAID levels 10 50 and 60 are constructed from multiple sets of basic or simpl...

Page 99: ...physical disk failure without duplicating the contents of the entire physical disks RAID 6 combines dual distributed parity with disk striping This level of parity allows for two disk failures without duplicating the contents of entire physical disks Figure 8 Example of Distributed Parity RAID 5 NOTE Parity is distributed across multiple physical disks in the disk group Figure 9 Example of Dual Di...

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Page 101: ...ical Support Customer Support Sales or International Support Services 4 Select the appropriate service or support link based on your requirement NOTE If you have purchased a Dell system you may be asked for the Service Tag Documentation Feedback If you have feedback for this document write to documentation_feedback dell com Alternatively you can click on the Feedback link in any of the Dell docume...

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