Setup Guide

3. FC SAN Switch
4. Node
NOTE: Refer to your Fibre Channel switch user manual for implementation instructions.
iSCSI SAN Guidelines
This section details the best practices for attaching hosts to a PowerStore cluster in a highly-available, resilient and optimal
iSCSI SAN.
Recommended Configuration Values Summary
The following table summarizes the recommended variables related to iSCSI SAN:
Validation Impact Severity Refer to Section
Each host should be connected to both
nodes of each appliance.
Redundancy Mandatory Minimal Subnetting Configuration
for iSCSI
Maximum number of paths per volume per
host: 8
Performance Warning Recommended Zoning
Configuration
Recommended number of paths per
volume per host: 4
Performance Warning Recommended Zoning
Configuration
Link speed should be consistent across all
paths to the PowerStore cluster.
Performance Warning Recommended Zoning
Configuration
Duplex setting should be consistent
across all paths to the PowerStore cluster
per single host or a cluster of hosts.
Performance Warning Recommended Zoning
Configuration
If Jumbo Frames are required for iSCSI
traffic or management traffic (Vvol),
make sure that all ports (servers,
switches and system) are configured with
the same MTU value.
Performance Warning Recommended Configuration for
iSCSI
Enable the TCP Offloading Engine (TOE)
on the host iSCSI interfaces.
Performance Warning Recommended Configuration for
iSCSI
Balance the hosts across the target ports
of the appliances to provide a distributed
load across all target ports.
Performance Recommended Recommended Zoning
Configuration
Use dedicated NICs or iSCSI HBAs for
PowerStore cluster iSCSI connection.
NOTE: Avoid partitioning the iSCSI
interface.
Performance Recommended Recommended Configuration for
iSCSI
In PowerStore only single network subnet
is supported for the iSCSI target portals.
Performance Normal Recommended Configuration for
iSCSI
Minimal Subnetting Configuration for iSCSI
To prevent host path failure due to a single node failure, make sure to maintain redundancy.
● A PowerStore Appliance contains two nodes.
● A host must be connected at minimum with one path to each node for redundancy.
Best Practices for Storage Connectivity
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