HP LeftHand P4000 Windows Solution Pack For the Windows operating system Software Version: 8.
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Overview The LeftHand Networks Virtualization SAN is an ideal platform to build robust storage clusters running the LeftHand Networks SAN/iQ® software. LeftHand’s SAN/iQ software platform delivers enterprise-class SAN functionality on industry standard hardware. This document provides an overview of the performance characteristics your applications can rely on with the LeftHand Networks Virtualization SAN.
Virtualization SAN Performance Virtualization SAN The LeftHand Networks Virtualization SAN is an enterprise-class SAN built on industry-standard Intel chipsets. The SAN utilizes Serial Attached SCSI (SAS) drives to maximize performance and minimize response time for virtualized environments. The solution starts at 10.8 Terabytes (TB) of raw storage, but can easily be expanded to over 200 TB of raw storage simply by adding Virtualization SAN Expansion Nodes.
• Dedicate a separate IP subnet/VLAN for your iSCSI SAN. • Use a secondary Gigabit Ethernet NIC in servers attached to the Ethernet storage subnet for high availability and performance. • If possible attach all modules and application servers to the same Gigabit switches for the storage networking. • Make sure all switch ports and Ethernet adapters are configured to run at Full-duplex Gigabit speeds.
The iSCSI SAN configurations included a dedicated group of three storage nodes comprised of: • Single management group with a single cluster including all storage modules • Storage modules were configured in either RAID 5 with volumes further protected by SAN/iQ Network RAID Level-2 (2-way Replication). • iSCSI sessions were load balanced across the clusters using SAN/iQ iSCSI Load Balancing The LeftHand Networks SAN is designed to work on your existing Ethernet infrastructure.
and Exchange benchmarks illustrate the expected performance in those application environments. Simple file copies show throughput in megabytes per second (MB/sec) and IOmeter simulates IOPS (inputs/outputs per second) and throughput. Microsoft SQLIOStress - The SQLIOStress utility was written and is maintained by the Microsoft SQL Server Escalation staff.
operations, the architecture of a LeftHand Networks SAN solution is capable of handling multiple file copy jobs simultaneously without degrading performance. Best Practice - When copying from DAS to the iSCSI SAN remember the file copy cannot go any faster than the DAS disk. Make sure the disk that the source files are on is the fastest disk available to you otherwise it might be limiting the file copy speed. Running multiple file copies at a time will increase the aggregate performance.
6 Figure 2 Cache hit sequential throughput Figure 3 Single Host SQLIOStress IPS
Figure 4 Single Host Jetstress IOPS Figure 5 Single Host File Copy Reads 7
8 Figure 6 Single Host File Copy Writes Figure 7 512 byte Random IOPS
Figure 8 64K Sequential Workload - MB/s Conclusion The Virtualization SAN from LeftHand Networks delivers reliable, scalable and predictable performance for enterprise virtualization environments. LeftHand Networks’ storage clustering allows the resources of multiple storage arrays to be aggregated together with the LeftHand Networks Virtualization SAN to create a robust high performance storage cluster.
Windows Server 2003 Resource Kit Tools (Robocopy) http://www.microsoft.com/downloads/ details.aspx?familyid=9d467a69-57ff-4ae7-96ee-b18c4790cffd&displaylang=en App Note - Building High Performance High Availability IP Storage Networks with SAN/iQ https://www.lefthandnetworks.com/member_area/dl_file.php?fid=972&action=display App Note - Best Practices for Enabling Microsoft Windows with SAN/iQ https://www.lefthandnetworks.com/member_area/dl_file.php?fid=1037&action=display Iometer Downloads - http://www.
