Dell PS4100 Technical Information download pdf (Page 73)

June 2012 Dell EqualLogic Configuration Guide v13.2 67

Table 32 Connecting M1000e to Non-Stacked External Switch Infrastructure

Connecting M1000e to Non-Stacked External Switch Infrastructure

Advantages Concerns

•

Switch Firmware updates can be made

on all switches without downtime

• SAN Array-to-array traffic is isolated

outside of the M1000e enclosures

• Fixed hops between hosts and array

volumes regardless of number of

M1000e enclosures

• Supports ability to scale arrays

• Supports ability to scale host.

• Supports sharing SAN with non-M1000e

servers.

•

Limited scalability of LAG bandwidth.

• Spanning Tree may block some links if a

loop is created.

• All switches must be managed

separately

Other Notes

•

Recommend using 10GbE or larger links within inter-switch LAGs to provide better

bandwidth scalability.

• Care needs to be taken to ensure that addition of switches does not cause a spanning tree

reconfiguration.

• Do not interconnect the M-series IO modules together.

• Additional M1000e enclosures are added in similar fashion to diagram above.

• This strategy works for a single fabric or dual fabric M-Series IO module configuration (See

Section 4.7.1.1 for details)

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Dell PS4100 Technical Information Page 73