msa 2012fc

[Paul Riddle]

Hi,

I'm in the process of testing and documenting a procedure for a device failure on our SAN. If anyone has a procedure for the below configuration that would be great otherwise my issue is:

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.


# 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


# dmsetup -v remove -f mpath8

device-mapper: remove ioctl failed: Device or resource busy

Command failed


Can anyone offer any help???


Regards,

Paul.