Quantum 3.1.4.1 manual Network Configuration and Topology, Switch

Page 26

StorNext File System Tuning

The Distributed LAN (Disk Proxy) Networks

Network Configuration and Topology

Figure 1 Multi-NIC Hardware and IP Configuration Diagram

For maximum throughput, SNFS distributed LAN can utilize multiple NICs on both clients and servers. In order to take advantage of this feature, each of the NICs on a given host must be on a different IP subnetwork. (This is a requirement of TCP/IP routing, not of SNFS - TCP/ IP can't utilize multiple NICs on the same subnetwork.) An example of this is shown in the following illustration.

10.0.0.35

 

Distributed

 

10.0.0.34

 

Distributed

 

10.0.0.33

 

LAN

 

Distributed

 

 

 

LAN

 

192.168.9.35

Server

 

LAN

 

192.168.9.34

 

Server

 

 

S1

 

192.168.9.33

 

Server

 

 

S1

SAN

 

 

S1

Switch

Switch

AB

10.0.0.x

192.168.9.x

192.168.9.45

Distributed

192.168.9.44

 

Distributed

192.168.9.43

 

LAN

Distributed

 

 

LAN

10.0.0.45

 

Client

 

LAN

 

 

Client

10.0.0.44

 

ClientC1

10.0.0.43

 

C1

 

 

C1

10.0.0.57 Distributed

10.0.0.56 Distributed

10.0.0.55LAN

Distributed

LAN

Client

LAN

Client

ClientC2

C2

C2

In the diagram there are two subnetworks: the blue subnetwork (10.0.0.x) and the red subnetwork (192.168.9.x). Servers such as S1 are connected to both the blue and red subnetworks, and can each provide up to

2 GByte/s of throughput to clients. (The three servers shown would thus provide an aggregate of 6 GByte/s.)

Clients such as C1 are also connected to both the blue and red subnetworks, and can each get up to 2 GByte/s of throughput. Clients such as C2 are connected only to the blue subnetwork, and thus get a

22

StorNext File System Tuning Guide

Image 26
Contents StorNext Copyright Statement Contents Contents StorNext File System Tuning Underlying Storage SystemCaching RAID Cache ConfigurationRAID Write-Back RAID Read-Ahead RAID Level, Segment Size, and Stripe Size File Size Mix and Application I/O Characteristics Buffer Cache NFS / CifsSnfs and Virus Checking Metadata NetworkMetadata Controller System FSM Configuration File Settings Stripe GroupsAffinities StripeBreadth ThreadPoolSize BufferCacheSizeInodeCacheSize ForcestripeAlignment FsBlockSizeJournalSize FsBlockSize JournalSizeSnfs Tools StorNext File System Tuning Metadata Controller System StorNext File System Tuning Metadata Controller System Latency-testindex-number seconds Mount Command Options Hardware Distributed LAN Disk Proxy NetworksSnfs External API StorNext File System Tuning Guide Network Configuration and Topology SwitchDistributed LAN Servers Distributed LAN Client Vs. Legacy Network Attached StorageLoad Balancing Client Scalability Fault tolerancePerformance Windows Memory Requirements Robustness and Stability Consistent Security ModelStorNext File System Tuning Windows Memory Requirements Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File