March 2013 Dell EqualLogic Configuration Guide v14.1 9-88
Table 33 Single M1000e enclosure stacking dual fabric
Dual Fabric Stacked Configuration
Advantages Concerns
Ensures that Ethernet SAN ports on each
blade server will be distributed across two
different mezzanine cards for a more highly
available solution
Does not adhere to recommended practices
for M1000e blade IO configuration
• Upgrading switch FW will require scheduled
As discussed earlier, one of the concerns when creating a SAN that consists of a single stack is that a
single stack does not provide for a highly available solution when attempting to perform switch
maintenance such as switch firmware updates. If there is a requirement that the SAN solution cannot
be brought down for regularly scheduled maintenance, then stacking may not be the right option and
you should consider link aggregation methods for switch interconnect.
Table 34 and Table 35 illustrate the non-stacking strategies between the two I/O modules in each of
these two configurations as previously described.
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