Linux multipathing issue...


 
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Operating Systems Linux Linux multipathing issue...
# 1  
Old 01-26-2012
Linux multipathing issue...

Hi folks.

When issuing a multipath -ll on my server, i see something that is bugging me...

Code:
[root@servername ~]# multipath -ll

2000b0803ce002582 dm-10 Pillar,Axiom 600
size=129G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 0:0:0:4 sdd 8:48   active ready running
| `- 1:0:0:4 sdn 8:208  active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
  |- 0:0:1:4 sdh 8:112  active ready running
  `- 1:0:1:4 sdr 65:16  active ready running
2000b0803cb002582 dm-13 Pillar,Axiom 600
size=129G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=enabled
| |- 0:0:1:1 sde 8:64   active ready running
| `- 1:0:1:1 sdo 8:224  active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
  |- 0:0:0:1 sda 8:0    active ready running
  `- 1:0:0:1 sdk 8:160  active ready running
2000b0803cc002582 dm-12 Pillar,Axiom 600
size=129G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 0:0:0:2 sdb 8:16   active ready running
| `- 1:0:0:2 sdl 8:176  active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
  |- 0:0:1:2 sdf 8:80   active ready running
  `- 1:0:1:2 sdp 8:240  active ready running

I am used to seeing one active path and the other enabled per LUN, but what could be causing my dm-13 to be showing a status of enabled for both paths and not even one active?? Any logical explanation for this? Thoughts?

kernel info
Code:
2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

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