[dm-devel] latest multipath-tools from git breaks EMC CX

[christophe varoqui]

Most certainly the 8af5a2b1b5e4d3a457f5bb477214356385087eae commit is
the culprit : I did a bit of spliting in path discovery, and introduced
a new fn to get the sysfs bus that I use as a switch to choose a
discovery template.

Reading your output, I would say the bus fetching went wrong.

Well, revert it or debug it :/

Strange it didn't blew on me ...

On jeu, 2005-06-02 at 22:46 +0200, Lars Marowsky-Bree wrote:
> More specifically, it fails to detect the vendor correctly, and uses the
> most basic internal defaults:
> 
> ...
> ===== path sdz =====
> bus = 0
> dev_t = 65:144
> size = 280278656
> path checker = readsector0 (internal default)
> #
> # all paths :
> #
> #:#:#:# sdaa 65:160  []
> #:#:#:# sdab 65:176  []
> #:#:#:# sdac 65:192  []
> #:#:#:# sdad 65:208  []
> #:#:#:# sdae 65:224  []
> #:#:#:# sdaf 65:240  []
> #:#:#:# sdag 66:0    []
> #:#:#:# sdah 66:16   []
> #:#:#:# sdai 66:32   []
> #:#:#:# sdaj 66:48   []
> 
> ...
> params = 0 0 4 2 round-robin 0 1 1 65:240 1000 round-robin 0 1 1 66:224 1000 round-robin 0 1 1 8:16 1000 round-robin 0 1 1 65
> :0 1000 
> status = 1 0 0 4 2 E 0 1 0 65:240 F 1 A 0 1 0 66:224 A 0 E 0 1 0 8:16 F 1 E 0 1 0 65:0 A 0 
> 3600601607cf30e00174589a37a31d911
> [size=127 GB][features="0"][hwhandler="0"]
> \_ round-robin 0 [enabled]
>   \_ #:#:#:# sdaf 65:240  [failed]
> \_ round-robin 0 [active][best]
>   \_ #:#:#:# sdau 66:224  [active]
> \_ round-robin 0 [enabled]
>   \_ #:#:#:# sdb  8:16    [failed]
> \_ round-robin 0 [enabled]
>   \_ #:#:#:# sdq  65:0    [active]
> 
> ...
> 
> Just what the heck is going on there? ;-)
> 
> I don't get any more output than that, sorry.
> 
> 
> Sincerely,
>     Lars Marowsky-Brée <lmb at suse.de>
> 
-- 
christophe varoqui <christophe.varoqui at free.fr>