centos – Delete failed entries in multipath

admin

Due to some changes, I have to force a rescan of Fibre Channel devices on a CentOS 6 server.

This is the output of multipath -l:

(...)
36000144000000010f01c857894aede59 dm-50 EMC,Invista
size=5.0T features="1 queue_if_no_path" hwhandler="0" wp=rw
`-+- policy='round-robin 0' prio=0 status=active
  |- 7:0:3:107 sdca 68:224  active undef unknown
  |- 4:0:3:107 sdbd 67:112  active undef unknown
  |- 7:0:4:107 sdeb 128:48  active undef unknown
  `- 4:0:7:107 sddg 70:224  active undef unknown
3600601602bd14600351eb55f237aa77d dm-5 DGC,VRAID
size=3.0T features="0" hwhandler="1 emc" wp=rw
|-+- policy='round-robin 0' prio=0 status=active
| |- 7:0:7:39  sdq  65:0    failed undef unknown
| `- 4:0:6:39  sdei 128:160 failed undef unknown
`-+- policy='round-robin 0' prio=0 status=enabled
  |- 7:0:0:39  sdx  65:112  active undef unknown
  `- 4:0:0:39  sdk  8:160   active undef unknown
36000144000000010f01c857894aedd26 dm-14 EMC,Invista
size=5.0T features="0" hwhandler="0" wp=rw
`-+- policy='round-robin 0' prio=0 status=active
  |- 7:0:3:94  sdba 67:64   failed undef unknown
  |- 4:0:3:94  sdad 65:208  failed undef unknown
  |- 7:0:4:94  sddb 70:144  failed undef unknown
  `- 4:0:7:94  sdcg 69:64   failed undef unknown
(...)

Running multipath -f dm-5 or multipath -w 3600601602bd14600351eb55f237aa77d does not delete the entry, not even after running multipath or restarting the multipathd service.

These entries are not present in /etc/multipath.conf.

How to delete the failed entries?

Read more here: Source link