Dell H710P, H310, H810 manual Virtual Disk Parameters and Descriptions, RAID Level

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When you define the virtual disks, you can set the following virtual disk parameters:

•RAID level

•Stripe element size

•Read policy

•Write policy

•Type of initialization

•Hot spare configuration

NOTE: The default hard drive cache policy for a virtual disk composed with SAS hard drives is disabled and with SATA hard drives is enabled. The Virtual Disk parameter can not be changed in the BIOS Configuration Utility (<Ctrl><R>). Use Dell OpenManage Storage Management for the hard drive cache setting operation.

Table 5-2 shows the parameters that you can configure when defining virtual disks.

Table 5-2. Virtual Disk Parameters and Descriptions

Parameter

Description

 

 

RAID Level

RAID Level specifies whether the virtual disk is RAID 0, 1, 5, 6, 10,

 

50, or 60. The number of disks, disk capacity, the requirements for

 

fault tolerance, performance, and capacity should be considered when

 

selecting the RAID level. For more information, see "Summary of

 

RAID Levels" on page 129.

 

 

Stripe

Stripe Element Size specifies the size of the segments written to each

Element Size

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 1024

 

KB. The default and recommended stripe element size is 64 KB.

 

A larger stripe element size provides better read performance if your

 

system mostly does sequential reads.

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Management Applications for PERC Cards

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Contents User’s Guide Model UCPA-801, UCPB-800, UCPM-800 and UCPE-800 Contents Automatic Replace Member Battery Transparent Learn CycleRemoving the Perc Controller Installing the Perc Controller Setting up Redundant Path Support Installing the Windows DriversSupport For Internal Reverting to Single Path SupportBios Configuration Utility Virtual Disk ManagementUefi RAID Configuration Utility Troubleshooting Security Key Errors Security Key Implementation Security Key Management109 Degraded State of Virtual Disks 118 119120 124128 Linux Operating System Errors 126125 Contents Overview GB DDR3 Supported Operating Systems Related Documentation Contacting DellGo to support.dell.com Visit support.dell.comFeatures Physical Disk Power ManagementConfigured Spin Down Delay Savings modeTypes of Virtual Disk Initialization Background Initialization of Virtual DisksFull Initialization of Virtual Disks Fast Initialization of Virtual DisksConsistency Checks Disk RoamingVirtual Disk Migration Features Virtual Disk Write Cache Policies Write-Back and Write-ThroughVirtual Disk Read Cache Policies Conditions Under Which Write-Back is EmployedReconfiguration of Virtual Disks RAID Level Migration Fault Tolerance Smart FeaturePatrol Read Automatic Replace Member with Predicted FailureRedundant Path Support For Perc H810 Only Physical Disk Hot Swapping Using Persistent Hot Spare SlotsPhysical Disk Failure Detection Using Replace Member and Revertible Hot Spares Controller Cache PreservationBattery Transparent Learn Cycle Cache Data RecoveryCache Preservation With Non-Volatile Cache NVC TLC Time FrameWhen to Replace the Battery Features Deploying the Perc Card Installing the Perc Controller Removing the Perc ControllerRemoving and Installing the Perc Adapter Removing and Installing the Perc Mini Blade Controller Removing and Installing the Perc Mini Monolithic Controller Support For Internal Multiple ControllersSetting up Redundant Path Support on the Perc H810 Adapter Deploying the Perc Card Redundant Path Support Configuration With Two Enclosures Creating the Driver Media Driver InstallationInstalling the Windows Drivers Pre-Installation Requirements Creating the Device Driver MediaClick Continue Downloading Drivers From the Dell Support WebsiteDriver Installation Select Install from a list or specific location Click Device ManagerUpdating the Linux Driver Driver Installation Upgrading the Kernel Driver Installation Management Applications for Perc Cards Dell OpenManage Storage ManagementBios Configuration Utility Entering the Bios Configuration UtilityMenu Navigation Keys Notation Meaning and Use Example Exiting the Configuration UtilityMenu Navigation Controls To exit the Bios Configuration Utility Setting Up Virtual Disks Mgmt, Ctrl Mgmt, and Foreign View PD MgmtVirtual Disk Parameters and Descriptions RAID LevelWrite Policy Virtual Disk Management Creating Virtual DisksManagement Applications for Perc Cards Management Applications for Perc Cards Initializing Virtual Disks Converting Physical Disk to RAID Capable for Perc H310Converting Physical Disk to Non-RAID for Perc H310 Checking Data Consistency Management Applications for Perc Cards Management Applications for Perc Cards Select Foreign Configuration View to display Break Mirror Break Mirror in Bios Configuration Utility Managing Preserved Cache Select Manage Preserved CacheDeleting a dedicated hot spare Managing Dedicated Hot SparesCreating a dedicated hot spare Deleting Virtual Disks Deleting Disk GroupsSelect Clear Config Bios Configuration Utility Menu OptionsClearing the Configuration Virtual Disk Management VD Mgmt Virtual Disks Physical DisksInformation on the Virtual Disk Management Screen Information Displayed in Right PanelVirtual Disks Disk Group # Properties Management Applications for Perc Cards Information on the Virtual Disk Management Screen Virtual Disk Actions Virtual Disk Actions DescriptionPhysical Disk Management PD Mgmt Physical Disk Actions Description Physical Disk ActionsRebuild Controller Management Ctrl Mgmt Non-RAID drive Controller Management ActionsController Management Options Description Physical Disk Management Foreign Configuration ViewSetting LED Blinking Creating Global Hot Spares Removing Global or Dedicated Hot SparesReplacing an Online Physical Disk Stopping Background Initialization Restrictions and LimitationsPerforming a Manual Rebuild of an Individual Physical Disk Enabling Boot SupportController Management Enabling Bios Stop on Error Enabling Auto Import Entering the Uefi RAID Configuration Utility Uefi RAID Configuration UtilityRestoring Factory Default Settings Exiting the Uefi RAID Configuration Utility Configuration OptionsController Management Virtual Disk Management Physical Disk ManagementEnclosure Management CacheCade Virtual Disk Characteristics CacheCadeConfiguring and Managing CacheCade Virtual Disks CacheCade Virtual Disk ManagementCreate CacheCade Virtual Disk Select Create CacheCade Virtual Disk and press EnterReconfiguring CacheCade Virtual Disks Delete CacheCade Virtual DiskAutomatic Reconfiguration of CacheCade Virtual Disks Manual Resizing of CacheCade Virtual Disks Security Key Implementation Security Key Management in the Bios Configuration UtilitySecurity Key and RAID Management 100 Local Key Management LKMCreate Security Key Change Security Key 101Delete Security Key 102103 Creating Secured Virtual DisksSecuring Pre-Existing Virtual Disks 104 Instant Secure Erase 105Troubleshooting Security Key Errors Secured Foreign Import ErrorsFailure to Delete Security Key 106Failure to Instant Secure Erase Task on Physical Disks 107108 Troubleshooting Bios Error MessagesDiscovery Error Message Extra Enclosure Error Message110 Cache Data Lost Error MessageMissing Disks in Virtual Disk Error Message 111 Previous Configuration of Disks Removed Error MessageMissing Virtual Disks Error Message Dirty Cache Data Error Message Bios Disabled Error MessageCorrective Action Enable the ROM option 112113 Drive Configuration Changes Error MessageAdapter at Baseport not Responding Error Message Virtual Disks Offline Error Message Virtual Disks Degraded Error MessageVirtual Disks Partially Degraded Error Message Memory or Battery Problem Error Message115 Firmware Fault State Error MessageForeign Configuration Found Error Message Foreign Configuration Not Found in CtrlR Error Message Previous Configuration Cleared or Missing Error MessageInvalid SAS Topology Detected Error Message 116117 Multibit ECC Errors Detected Error MessagesConfigured Disks Removed or Not Accessible Error Message Memory Errors Battery Discharged or Disconnected Error MessageDegraded State of Virtual Disks Corrective ActionGeneral Issues Preserved Cache StatePerc Card Has Yellow Bang in Device Manager Perc Card Not Seen in Device ManagerPhysical Disk Issues Unable to Rebuild a Fault Tolerant Virtual DiskPhysical Disk in Failed State 120Fatal Error or Data Corruption Reported Multiple Disks Become InaccessiblePhysical Disk Displayed as Blocked 121122 Virtual Disk Fails During Rebuild Using a Global Hot SpareRebuilding a Failed Physical Disk 123 Virtual Disk Fails Rebuild Using a Dedicated Hot SparePhysical Disk Takes a Long Time to Rebuild Smart Errors 124Replace Member Errors Source Disk Fails During Replace Member OperationTarget Disk Fails General Disk Fails126 Linux Operating System ErrorsDriver Does not Auto-Build into New Kernel 127 Unable to Register Scsi Device Error MessageError Message Disk Carrier LED Indicators 128129 Appendix RAID DescriptionSummary of RAID Levels 130 RAID TerminologyDisk Striping Disk Mirroring Spanned RAID LevelsParity Data 131Figure A-3. Example of Distributed Parity RAID Figure A-4. Example of Dual Distributed Parity RAIDIndex 133RAID 134135 136
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H310, H710, H710P, H810 specifications

Dell offers a range of storage controller technologies, notably the H810, H710, H710P, and H310, which cater to different enterprise needs. These controllers are designed to support various storage configurations, enhancing overall system performance and reliability.

The Dell H810 is a high-performance PCIe 3.0 RAID controller that supports up to eight internal drives and is particularly suited for demanding workloads. It features advanced RAID levels including RAID 0, 1, 5, 6, 10, 50, and 60, providing flexibility for various data protection strategies. The H810 also supports up to 32TB of storage capacity, making it suitable for environments that require substantial data management capabilities.

The H710 is another powerful RAID controller, widely recognized for its balance of performance and cost-efficiency. It features 1GB of cache memory, which aids in accelerating read and write operations. The H710 supports the same RAID levels as the H810 and allows for up to 512MB of non-volatile memory. This ensures data integrity even in the event of a power failure, making it reliable for critical applications.

The H710P is an enhanced version of the H710, with a significant upgrade in its cache capabilities. It offers 2GB of battery-backed cache memory, further enhancing data processing speeds and improving responsiveness. The H710P is ideal for intensive workloads and virtualization, where rapid access to data is essential. This controller also includes features such as RAID storage pooling, intelligent data tiering, and support for multiple virtual disks.

Finally, the H310 is a cost-effective option for small to medium-sized businesses or those with less demanding storage requirements. It offers similar RAID support as the higher-end controllers but operates with a simpler architecture. The H310 features 512MB of cache, providing sufficient performance for regular workloads without the additional complexities of more advanced controllers.

In summary, Dell's H810, H710, H710P, and H310 storage controllers each serve distinct purposes, providing various features, technologies, and performance characteristics tailored to different business needs. From high-capacity storage solutions to user-friendly setups, Dell’s offerings ensure that organizations can efficiently manage their data storage requirements.
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