Dell PS4100 Technical Information download pdf (Page 76)

June 2012 Dell EqualLogic Configuration Guide v13.2 70

4.7.3 M-Series Pass-Through Modules

Pass-Through modules are supported for use with EqualLogic SAN solutions. The Pass-Through

module provides a simple, direct path from each blade server’s optional Ethernet mezzanine card to

an externally accessible port. These ports can then be connected to one or more external switches

that are hosting PS-Series arrays.

Table 35 M-Series IO Module Pass-Through to External Switch Infrastructure

M-Series IO Module Pass-Through to External Switch Infrastructure

Advantages Concerns

•

Fewer switch hops

• Fewer switches to manage

• SAN can support M1000e enclosures and rack or tower

stand-alone servers

• SAN traffic isolated outside of M1000e enclosure

• Less expensive that multi-tiered switch solution

• Supports non-dell branded switching as a single vendor

solution

• No firmware to update on the pass-through modules.

•

Complex cabling in a

rack environment.

Other Notes

•

Additional M1000e enclosures are added in similar fashion to diagram above

• Supported with stacked or non-stacked external SAN infrastructures

• 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 76