Contents 1 Overview............................5 ..........................6 Supported Operating Systems ............................7 Related Documentation ...........................7 Locating Your System Service Tag ................................. 7 Contacting Dell ............................7 Documentation Feedback 2 Shared PERC 8 Card Features....................9 ...........................9 Physical Disk Power Management ..............................9 Consistency Checks ............................9 Virtual Disk Initialization ......................9...
....21 Downloading Drivers From The Dell Systems Service And Diagnostic Tools Media For Windows .............. 22 Downloading Drivers From The Dell Support Website For Windows ..............22 Updating Existing Windows Server 2008 R2 Or Windows Server 2012 5 Management Applications For Shared PERC 8 Card............25 6 Troubleshooting.........................27...
Root Input Output Virtualization (SR-IOV). This feature allows multiple systems to share available hardware resources. In the PowerEdge VRTX system, the Shared PERC 8 card allows four server modules to access a local shared storage. Each server module's operating system loads a Virtual Function (VF) driver that allows the server module to communicate with the Shared PERC 8 firmware.
Specification Shared PERC 8 Card Capabilities Cache policies Write Back, Write Through, Adaptive Read Ahead, No Read Ahead, and Read Ahead Maximum number of spans per disk group Eight Maximum number of virtual disks per disk group Dedicated and global hot spares Hot swap devices supported Hardware XOR engine Virtual disk initialization;...
Service Tag are found on the front of the system by pulling out the information tag. Alternatively, the information may be on a sticker on the chassis of the system. This information is used by Dell to route support calls to the appropriate personnel.
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 periodically run a consistency check on virtual disks. You can manually start a CC in the Dell Chassis Management Controller (CMC). Dell Chassis Management Controller for Dell NOTE: For detailed navigation of the CMC for Shared PERC 8, see the PowerEdge VRTX User’s Guide at dell.com/esmmanuals.
Dell Chassis Management Controller for Dell NOTE: For detailed navigation of the CMC for Shared PERC 8, see the PowerEdge VRTX User’s Guide at dell.com/esmmanuals. NOTE: If the system reboots during a full initialization, the operation terminates and a BGI begins on the virtual disk.
FastPath FastPath is a feature that improves application performance by delivering high I/O per second (IOPS). The Shared PERC 8 card supports FastPath in non-VMware systems. FastPath is a further enhancement of the Cut Through IO (CTIO) feature, introduced in earlier PERC cards. FastPath is used to accelerate I/O performance by reducing the I/O processing overhead of the firmware.
The Shared PERC 8 cards manage data in the cache independently of the operating system or any applications. NOTE: Use the Dell Chassis Management Controller (CMC) to view and manage virtual disk cache settings. Write-Back In Write-Back caching, the controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction.
Conditions Under Which Write-Back Is Employed Write-Back caching is used under all conditions in which the battery is present and in good condition. 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 loses power.
The Patrol Read feature is designed as a preventive measure to ensure physical disk health and data integrity. Patrol Read scans for and resolves potential problems on configured physical disks. The Dell Chassis Management Controller (CMC) can be used to start and control the features of Patrol Read.
Ensure all online physical disks are still connected. Access the Dell Chassis Management Controller (CMC) to discard pinned cache. If you do not see the Discard Pinned Cache option, it indicates that all preserved cache data is written to the disks successfully.
TLC Time Frame The time frame for completion of a learn cycle is a function of the battery charge capacity and the discharge and charge currents used. For Shared PERC 8 card, the expected time frame for completion of a learn cycle is approximately seven hours.
Driver Installation The Dell Shared PowerEdge RAID Controller (PERC) 8 card requires software drivers to operate with the supported operating systems. This chapter contains the procedures for installing the drivers for the Shared PERC 8 card. NOTE: For more information on VMware ESX drivers, see the VMware ESX documentation at www.dell.com/ virtualizationsolutions.
Downloading Drivers From The Dell Support Website For Windows To download drivers from the Dell support website: Go to dell.com/support. Select your line of business. In the Popular support tools section, click Drivers and Downloads. 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.
NOTE: Dell provides the Dell Update Package (DUP) to update drivers on systems running Windows Server 2012 or Window Server 2008/2008 R2 operating systems. DUP is an executable application that updates drivers for specific devices. DUP supports command line interface and silent execution. For more information,...
Provide online maintenance through a web interface or Command Line Interface (CLI) NOTE: Dell OpenManage Storage Management, BIOS Configuration Utility (<Ctrl> <L>), or Unified Extensible Firmware Interface (UEFI) RAID Configuration Utility does not support the Shared PERC 8 and may only be used to manage non-shared PERC cards.
Troubleshooting To get help with your Dell Shared PowerEdge RAID Controller Shared (PERC) 8, you can contact your Dell Technical Service representative or see dell.com/support. Controller Boots Into Safe Mode In the event of some failure conditions encountered at boot, Shared PERC 8 boots up with restricted capability in safe mode without user intervention.
Issue: The device does not appear in the Device Manager. Corrective In the Dell Chassis Management Controller (CMC) application, verify if the Shared PERC 8 is Action: correctly mapped to the desired server module. For more information on assigning Virtual...
Shared PERC 8 to the latest firmware available on dell.com/support. NOTE: For the Dell Update Package (DUP), update of the hard drive after it reports completed and perform a graceful shutdown of all server modules and power cycle the chassis.
NOTE: For information about where to find reports of SMART errors that can indicate hardware failure, see the Dell Chassis Management Controller for Dell PowerEdge VRTX User’s Guide at dell.com/esmmanuals. SMART Error Detected On A Physical Disk In A Redundant Virtual Disk Issue: A SMART error is detected on a physical disk in a redundant virtual disk.
4. Delete the failed virtual disk and recreate the virtual disk with the same members. Dell Chassis NOTE: For information on creating and deleting virtual disks, see the Management Controller for Dell PowerEdge VRTX User’s Guide at dell.com/ esmmanuals. 5. Restore from the backup.
General Disk Fails Issue: A general disk fails. Description: If the target disk fails and the Auto Replacement Member operation terminates but the source data is still available, then the Auto Replacement Member operation continues as Auto Replacement Member. Disk Carrier LED Indicators The LED on the physical disk carrier indicates the state of each physical disk.
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: •...
For example, in a four-disk system using only disk striping (used in RAID 0), segment 1 is written to disk 1, segment 2 is written to disk 2, and so on. Disk striping enhances performance because multiple physical disks are accessed simultaneously, but disk striping does not provide data redundancy.
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.