Multipath output

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this is the output of multipath -ll on one of our servers.

 

\_ round-robin 0 [prio=100][enabled]
 \_ 0:0:1:1 sdd 8:48  [active][ready]
 \_ 1:0:0:1 sdf 8:80  [active][ready]
\_ round-robin 0 [prio=20][enabled]
 \_ 0:0:0:1 sdb 8:16  [active][ready]
 \_ 1:0:1:1 sdh 8:112 [active][ready]

 

if you look at the groupings it appears that we have each group with one path to SPA and one to SPB. if  I am reading this correctly - host-channel-target-lunid.

 

We are using ALUA surley this would introduced 50% of i/o that would be non optimized.

 

CX4 using ALUA failover mode 4

 

gw

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