HP LeftHand P4000 HP LeftHand SAN Solutions Support Document - Application Not
HP LeftHand P4000 - SAN Solutions Manual
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- HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 1
HP LeftHand SAN Solutions Support Document Application Notes Starter SAN - Performance - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 2
such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 3
indicates the release date of this version of the software. To check for recent updates or to verify that you are using the most recent edition of a document, go to: http://h20230.www2.hp.com/selfsolve/manuals This site requires that you register for an HP Passport and sign in. To register for an - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 4
benefit by using the support web site to: • Search for knowledge documents of interest • Submit and track support cases and enhancement requests • Download software patches • Manage support contracts • Look up HP support contacts • Review information about available services • Enter into discussions - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 5
and caches in the LeftHand Starter SAN were selected to maximize throughput, IOPS, and scalability. Contents Lefthand Starter SAN 7 Performance Tuning Tips 7 Network Best Practices 7 Disk Formatting Best Practices 8 Storage Node Configuration Best Practices 8 Performance Test Environment for - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 6
Conclusion 15 Additional References 15 The Information in this Article Applies to 16 6 - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 7
and all for an affordable price. Performance Tuning Tips SAN performance can be negatively impacted if the SAN is not configured properly. The following guidelines will help maximize the performance of the LeftHand Networks SAN. Network Best Practices • Use Gigabit Ethernet switching infrastructure - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 8
. Storage Node Configuration Best Practices • Bond networks interfaces for network redundancy and more bandwidth using Adaptive Load Balancing (ALB). • Use RAID level 5 or 10 for disk redundancy within storage modules. • Enable SAN/iQ iSCSI Load Balancing on authentication groups for Windows servers - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 9
volumes were configured using the Microsoft iSCSI Software Initiator Version 2.0.7. Volumes were mounted using the Windows Logical Disk Manager and formatted with NTFS using the default allocation unit size. Maximum Performance Metrics (Cache Hit Performance) The maximum performance metrics data - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 10
For this document the 4th iteration will be used. The SQLIOStress test runs from only a single host and typically becomes CPU bound. The tool is not capable of scaling at the same rate as the SAN. Some scaling is achieved on a single host due to the lower latency in the SAN. Best Practice - Keep the - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 11
to demonstrate a system's IOPS and throughput capabilities. These configurations are designed to show typical speeds as opposed to the maximum values. Best Practices - Run IOmeter against raw disks to avoid file system cache interference. Lefthand Starter SAN Performance Results Figure 1 Cache hit - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 12
Figure 2 Cache hit sequential throughput Figure 3 Single Host SQLIOStress IPS 12 - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 13
Figure 4 Single Host Jetstress IOPS Figure 5 Single Host File Copy Reads 13 - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 14
Figure 6 Single Host File Copy Writes Figure 7 512 byte Random IOPS 14 - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 15
and power of LeftHand Networks' storage clustering paired with the LeftHand SAN product line allow a customer to meet any performance and/or capacity need. Additional References Optimizing Storage for Exchange Server 2003 - http://www.microsoft.com/downloads/ details.aspx?FamilyID=C6084D20 - HP LeftHand P4000 | HP LeftHand SAN Solutions Support Document - Application Not - Page 16
App Note - Best Practices for Enabling Microsoft Windows with SAN/iQ Iometer Downloads - http://www.iometer.org/doc/downloads.html The Information in this Article Applies to SAN/iQ versions 8.0+ Microsoft Windows Server 2000/2003/2008 * Some of the performance claims represented in this document are
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Starter SAN - Performance