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Dell PowerVault MD3200 Series White Paper

Planning for hyper-v a dell powervault™ md3200 and md3200i series of arrays technical
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Planning for Hyper-V
A Dell PowerVault™ MD3200 and MD3200i Series of
Arrays Technical White Paper
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  • Page 1 Planning for Hyper-V A Dell PowerVault™ MD3200 and MD3200i Series of Arrays Technical White Paper Dell...
  • Page 2 ERRORS AND TECHNICAL INACCURACIES. THE CONTENT IS PROVIDED AS IS, WITHOUT EXPRESS OR IMPLIED WARRANTIES OF ANY KIND. © 2010 Dell Inc. All rights reserved. Reproduction of this material in any manner whatsoever without the express written permission of Dell Inc. is strictly forbidden. For more information, contact Dell.

  • Page 3: Table Of Contents

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Contents   Planning for Hyper-V on the Dell PowerVault MD3200 and MD3200i Series of Storage Arrays ....2   Disclaimer ......................2   Supported Hardware and Software ................2  ...

  • Page 4: Planning For Hyper-V On The Dell Powervault Md3200 And Md3200I Series Of Storage Arrays

    For information about how to deploy Hyper-V, refer to Implementing Hyper-V on the Dell PowerVault MD3200 and MD3200i Series of Storage Arrays. For information about backup and recovery options, refer to Data Protection on the Dell PowerVault MD3200 and MD3200i Series of Storage Arrays in a Hyper-V Environment.

  • Page 5: Planning For Hyper-V Virtualized Configurations

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Both the Dell PowerVault MD3200 and MD3200i storage arrays are supported with the Microsoft Windows Server 2008 Release 2 operating system running the Hyper-V role. Planning for Hyper-V Virtualized Configurations Planning for Hyper-V virtualized configurations includes these tasks: •...

  • Page 6: Planning The Sas Direct-Attach Installation With The Dell Powervault Md3200 And Md3220 Storage Arrays

    Planning the SAS Direct-Attach Installation with the Dell PowerVault™ MD3200 and MD3220 Storage Arrays The Dell PowerVault™ MD3200 storage array, with SAS host interface connectivity, can connect with up to four servers for high availability. The configuration that you choose depends on the number of servers you have, whether you are connecting to servers or a cluster-node, and the level of data redundancy that your configuration requires.

  • Page 7: Planning The Ip San Installation With The Dell Powervault Md3200I And Md3220I Storage Arrays

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Power Connect the power supplies for the Dell PowerVault MD3200 storage array to separate power sources. Doing so ensures that even if one component fails due to a power issue, the alternative path continues to work.

  • Page 8: Figure 2. Dell Powervault Md3200I Storage Array (Ip San)

    Make sure that each data path is on a separate subnet. iSCSI Sessions In the case of an iSCSI target, such as the Dell PowerVault MD3200i storage array, establish multiple sessions to the storage subsystem from each server. Set up one session per port from each of the network cards to each RAID controller module.

  • Page 9: Ip San Network Infrastructure For Performance

    If you want to physically isolate your IP SAN data traffic from general network traffic, use VLANs. Turn on VLAN tagging on the Dell PowerVault MD3200i storage array. A port can either transmit all tagged IP packets or all non-tagged IP packets.
  • Page 10 Note: PowerConnect switches default to flow control being off. The Dell PowerVault MD3200i storage array auto-configures to the switch when the flow control is turned on.

  • Page 11: Ip San Optimization For Throughput And I/Os

    I/O relative to the other controller. The Dell PowerVault MD3200i storage system supports active/active controllers, with each controller being able to simultaneous process I/O. The asymmetric design of the controllers means that a virtual disk (logical unit number or LUN) is owned by a controller, and all I/O access to the virtual disk is only possible through the owning controller.

  • Page 12: Considerations For Storage And Network Adapters (Md3200 And Md3200I Storage Arrays)

    Figure 3. Connecting the Dell PowerVault MD3200i Storage Array For the iSCSI-based Dell PowerVault MD3200i storage array, you must have two NICs for I/O to the storage array for each server. Set up the management ports (out-of-band) for managing the MD3200i storage array because they are required for the initial configuration.

  • Page 13: Md3200I Load-Balance Policies

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays planning the network connection to the Dell PowerVault MD3200i storage array, make sure that the cabling looks similar to Error! Reference source not found. (this configuration uses maximum performance by using all four ports per controller; however, a minimum of two connections is recommended).

  • Page 14: Additional Considerations For Virtual Storage

    Additional Considerations for Virtual Storage You can assign physical storage to a virtual machine in various ways. For the Dell PowerVault™ MD3200 or MD3200i storage array, you have two options: •...

  • Page 15: Considerations When Using Pass-Through Physical Disks Or Vhds

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays LUN1 – VHD Method LUN2 – Pass-Through Method LUN3 – Storage Direct Method VHDs have several different options: • Dynamic expansion – The VHD file grows as data is stored to the physical disk, with a maximum size not exceeding the size specified during creation.

  • Page 16: Directly-Mapped Iscsi Virtual Disks To The Vm (Dell Powervault Md3200I Storage Array)

    Usually, when you create VHDs, you can store your VM configuration files in the same location as the VHDs. If you plan to use multiple VMs, you can create one virtual disk on your Dell PowerVault MD3200 or MD3000i storage array for storing your configuration files and assign the data physical disks separately.

  • Page 17: Clustering With Hyper-V

    All cluster-nodes must be able to communicate with the same virtual disks on the Dell PowerVault MD3200 or MD3200i storage array. You can use storage partitioning to create a server group with the cluster-nodes and assign the necessary virtual disks to them.

  • Page 18: Figure 6. Md3200 Sas Storage Array Configuration In A Clustered Environment

    Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays MD3200 SAS Storage Array Configuration in a Clustered Environment Figure 6. MD3200i iSCSI Storage Array Configuration in a Clustered Environment Figure 7. Page 16...

  • Page 19: Contact Information

    Appendix Appendix A: System Troubleshooting For information about troubleshooting MD3200 storage arrays, refer to the “Troubleshooting Problems” chapter of the Dell™ PowerVault™ Modular Disk Storage Manager User’s Guide. Go to this website: http://support.dell.com/support/edocs/systems/MD3200/en/index.htm Appendix B: References Cisco, undated. Flooding Control http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35xu/olhelp/floodctl.htm...
  • Page 20 Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Microsoft Download Center, 2007. Microsoft iSNS Server 3.0 http://www.microsoft.com/downloads/details.aspx?familyid=0dbc4af5-9410-4080-a545- f90b45650e20&displaylang=en Microsoft Exchange Team Blog, 2007. Exchange 2007 Mailbox Server Role Storage Requirements Calculator http://msexchangeteam.com/archive/2007/01/15/432207.aspx Page 18...
  • Page 21 Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Appendix C: Terminology Bandwidth – The amount of data that the storage array can process over time. Bandwidth is measured in megabytes per second (MB/s). Child partition – A partition that is associated with the parent partition. The child partition is subordinate to the parent partition.
  • Page 22 Planning for Hyper-V: PowerVault™ MD3200 and MD3200i Series of Arrays Throughput – The number of individual I/Os the storage array can process over time. Throughput is measured in I/Os per second (IOPS). Page 20...

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