[dm-devel] configure MD3000

[Thomas Witzel]

Hello all,

I have a Dell MD3000 attached to an NX1950. It seems the MD3000 is
connected through a SAS 5/E card and uses the mptsas driver. My kernel
version is 2.6.27.
multipath -ll gives me:

sdj: checker msg is "directio checker reports path is down"
360022190009773680000214a495047cedm-5 ,
[size=2.0T][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ #:#:#:# sdd 8:48  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ #:#:#:# sdj 8:144 [failed][faulty]
360022190009773680000000000000000dm-0 ,
[size=20M][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][enabled]
 \_ #:#:#:# sdg 8:96  [failed][ready]
sde: checker msg is "directio checker reports path is down"
3600221900096f27d00000ab449504839dm-4 ,
[size=2.0T][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ #:#:#:# sdk 8:160 [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ #:#:#:# sde 8:64  [failed][faulty]
sdc: checker msg is "directio checker reports path is down"
3600221900096f27d00000ab3495047fddm-2 ,
[size=2.0T][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ #:#:#:# sdi 8:128 [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ #:#:#:# sdc 8:32  [failed][faulty]
sdh: checker msg is "directio checker reports path is down"
360022190009773680000214749504780dm-6 ,
[size=2.0T][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ #:#:#:# sdb 8:16  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ #:#:#:# sdh 8:112 [failed][faulty]
sdl: checker msg is "directio checker reports path is down"
360022190009773680000214c49504806dm-3 ,
[size=1.1T][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ #:#:#:# sdf 8:80  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ #:#:#:# sdl 8:176 [failed][faulty]
3600221900096f27d0000000000000000dm-1 ,
[size=20M][features=0][hwhandler=0]
\_ round-robin 0 [prio=1][enabled]
 \_ #:#:#:# sdm 8:192 [failed][ready]


How do I configure this to work correctly ? I'm sorry if that is a
redundant question, but I googled for about 8 hours now and couldn't
find anything conclusive. Also is there a manual/tutorial for this
somewhere ?

Thank you,
Thomas