Technical information
5  EqualLogic Configuration Guide | Version 15.2 | August 2014 
8.2  Ethernet switches and infrastructure ........................................................................................................................... 36 
8.2.1  Connecting SAN switches in a Layer 2 network ........................................................................................................ 37 
8.2.2  Sizing inter-switch connections ................................................................................................................................... 40 
8.2.3 Comparing inter-switch connection types ................................................................................................................ 40 
9  Building a high-availability SAN ................................................................................................................................................ 42 
9.1  Multi-path I/O ................................................................................................................................................................... 42 
9.1.1  EqualLogic MPIO Requirements ................................................................................................................................... 42 
9.1.2  EqualLogic MPIO General Recommendations .......................................................................................................... 43 
9.2  Redundant SAN configuration ....................................................................................................................................... 43 
9.3  Controller redundancy in all models ........................................................................................................................... 44 
9.4  Basic controller failover behavior in all models ......................................................................................................... 45 
9.4.1  Basic controller failover for models prior to PS4100/PS6100 ................................................................................ 45 
9.4.2  Controller failover behavior for: PS41x0/PS61x0 ...................................................................................................... 47 
9.4.3  Failover behavior in the PS-M4110 ............................................................................................................................... 48 
9.5  Vertical port failover behavior in PS4100/PS6100 controllers ............................................................................... 49 
9.6  Vertical port failover behavior in PS4110/PS6110 controllers ................................................................................ 52 
9.7  Vertical port failover behavior in PS6210 controllers ............................................................................................... 55 
10  Mixed speed environments - Integrating 1GbE and 10GbE SANs .................................................................................... 57 
10.1  Mixed speed SAN best practices ................................................................................................................................... 57 
11  Blade server chassis integration ............................................................................................................................................... 59 
11.1  Designing a SAN using blade chassis I/O modules with arrays ............................................................................. 60 
12  FS Series NAS Configuration ......................................................................................................................................................61 
12.1  FS7500 connection paths ................................................................................................................................................61 
12.2  FS7600/FS7610 connection paths ................................................................................................................................ 64 
13  Data Center Bridging (DCB) ...................................................................................................................................................... 67 
13.1  DCB Overview ................................................................................................................................................................... 68 
13.2  DCB requirements for EqualLogic ................................................................................................................................ 68 
13.3  VLANs for iSCSI ................................................................................................................................................................. 69 
A  Network ports and protocols .................................................................................................................................................... 71 
A.1  Required ports and protocols ......................................................................................................................................... 71 
A.2  Optional ports and protocols ......................................................................................................................................... 71 
B  Upgrade paths for EqualLogic PS Series arrays .................................................................................................................... 73 










