[dm-devel] Issue with dmsetup

[Paul Riddle]

Hi, 

I'm in the process of testing and documenting a procedure for a device failure on our SAN. 

We a running with two RHEL 5 nodes talking to a HP MSA2012fc   

When I remove a device from the SAN, I'm having a issue with dmsetup refusing to remove the old map. 

Notice mpath8 is in error below. 


[root at scrac2 ( mailto:[root at scrac2 ) dev]# dmsetup table 
mpath2: 0 286715904 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:16 100 8:176 100 
mpath1: 0 286713856 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:112 100 65:16 100 
mpath0p10: 0 276671367 linear 253:0 10040688 
mpath0: 0 286715904 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:0 100 8:160 100 
mpath0p9: 0 2008062 linear 253:0 8032563 
mpath0p8: 0 2008062 linear 253:0 6024438 
mpath0p7: 0 2008062 linear 253:0 4016313 
mpath0p6: 0 2008062 linear 253:0 2008188 
mpath9: 0 286713856 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:144 100 65:48 100 
mpath0p5: 0 2007999 linear 253:0 126 
mpath8: 0 286713856 error 
mpath7: 0 286715904 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 65:64 100 65:80 100 
mpath6: 0 286713856 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:64 100 8:224 100 
mpath5: 0 286715904 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:96 100 65:0 100 
mpath4: 0 286713856 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:48 100 8:208 100 
mpath10: 0 286715904 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:32 100 8:192 100 
mpath3: 0 286713856 multipath 1 queue_if_no_path 0 1 1 round-robin 0 2 1 8:128 100 65:32 100 


[root at scrac2 ( mailto:[root at scrac2 ) dev]# dmsetup -v remove -f mpath8 
device-mapper: remove ioctl failed: Device or resource busy 
Command failed 


Can anyone offer any help??? 


Regards, 
Paul. 





Please consider the environment before you print this email
For email conditions, please see our website  http://www.cps.com.au/email_conditions.htm
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/dm-devel/attachments/20081031/2ff60218/attachment.htm>