HP LeftHand SAN Solutions Support Document - Application Notes - Best Practices for Enabling Microsoft Windows with SAN/iQ®
Table Of Contents
- Application Notes Best Practices for Enabling Microsoft Windows with SANiQ
- Contents
- 1 Chapter: Enabling LeftHand SAN volumes with the Microsoft™ iSCSI 2.0x Initiator
- 2 Chapter: Finding the iSCSI Initiator Version
- 3 Chapter: LeftHand Networks and Microsoft™ MPIO Support
- 4 Chapter: Expanding a Windows Volume on the SAN
- 5 Chapter: Shrinking a Windows Volume on the SAN
- 6 Chapter: Setting the Windows Disk Partition Offset for Optimal Performance
- 7 Chapter: Ensure That Application Resources on iSCSI Volumes Come Online After a Server Reboot
- 8 Chapter: Microsoft™ iSCSI Initiator Session Timeout Setting
- 9 Chapter: Measuring Performance in a Windows Environment
- Overview
- Using Windows Performance Monitor to Measure SAN Performance
- Setting up Windows Performance Monitor
- Saving a Performance Monitor Log for Analysis
- Monitoring More Than One Server Simultaneously
- Scheduling Performance Data Collection
- Using IOMeter as a SAN Benchmark Tool
- Configuring the ISCSI Volume
- Configuring IOMeter
- Configuring IOMeter Access Specification for each Test
- Running the Test
- Interpreting Results
- Access Specifications to Run
- 10 Chapter: Frequently Asked Questions
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— Write I/Os are always serviced by a module that holds a copy of the
data. Remaining copies (replicas) of the data in question are
forwarded to the appropriate storage module based on the volume
replication algorithm: 0-way, 2-way 3-way or 4-way (SAN/iQ 7.0 or
later only) Replication.
• Because an I/O path is built to every storage module in the cluster, a
superior fault tolerant solution can be built compared to standard MPIO
architectures that are typically dual-path only. For instance, if there are 5
storage nodes in the cluster, DSM connected volumes will have 5 iSCSI
MPIO connections to the SAN (plus one or two administrative sessions).
Four of the five connections could actually go down and I/O would still
be serviced.
Note: The LeftHand DSM for MPIO is compatible with the Microsoft
iSCSI initiator only. It is not compatible with iSCSI Host
Bus Adapters.