<html><body><div style="color:#000; background-color:#fff; font-family:新細明體, pmingliu, serif;font-size:13pt"><div><span style="font-size: 17px;">Dear Christophe,</span><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;"><span style="font-size: 17px;"> I'm grad multipath-tool help us a lot. But we got some problem as multipath creation failed. I set the following configure and can not get twice path. sometime only got one path. That's strange. Can you help me out? I just want to get sdm and sdal multipath. Thanks.</span></div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;"><span style="font-size: 17px;"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color:
transparent; font-style: normal;"><span style="font-size: 17px; font-weight: bold; text-decoration: underline;">executie command steps:</span></div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;">1. multipath -F</div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;">2. multipath -r</div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;"><span style="font-size: 17px;"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; background-color: transparent; font-style: normal;"><span style="font-size: 17px;"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif;
background-color: transparent; font-style: normal;"><span style="font-size: 17px; font-weight: bold; text-decoration: underline;">multipath.conf</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">defaults {</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> getuid_callout "/lib/udev/scsi_id -g -u /dev/%n"</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> prio alua</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> failback immediate</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> no_path_retry queue</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">}</span></div><div
style="background-color: transparent;"><span style="font-size: 17px;">blacklist {</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> devnode "*"</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">}</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">blacklist_exceptions {</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> devnode "sdml"</span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; font-style: normal;"><span style="font-size: 17px;"> </span> devnode "sdal"</div><div style="background-color: transparent;"><span style="font-size: 17px;">}</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">devices {</span></div><div style="background-color:
transparent;"><span style="font-size: 17px;"> device {</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> vendor "*"</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> product "*"</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> no_path_retry 0</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> prio const</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> no_path_retry
fail</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"> }</span></div><div style="background-color: transparent;"><span style="font-size: 17px;"></span></div><div style="background-color: transparent;"><span style="font-size: 17px;">}</span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; font-style: normal;"><span style="font-size: 17px;"><br></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; font-style: normal;"><span style="font-size: 17px;"><br></span></div><div style="background-color: transparent; color: rgb(0, 0, 0); font-size: 17px; font-family: 新細明體, pmingliu, serif; font-style: normal;"><span style="font-size: 17px;">by the way, I got some multipath error as below, Is there any question?</span></div><div
style="background-color: transparent;"><span style="background-color: transparent; font-size: 17px;">[64513.680938] end_request: I/O error, dev dm-3, sector 0</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.681039] end_request: I/O error, dev dm-3, sector 3907029160</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.681097] end_request: I/O error, dev dm-3, sector 3907029160</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.681158] end_request: I/O error, dev dm-3, sector 0</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.681265] end_request: I/O error, dev dm-3, sector 0</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.681325] end_request: I/O error, dev dm-3, sector 24</span></div><div style="background-color: transparent;"><span
style="font-size: 17px;">[64513.694741] device-mapper: multipath: Failing path 67:96.</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.714079] device-mapper: multipath: Failing path 67:112.</span></div><div style="background-color: transparent;"><span style="font-size: 17px;">[64513.714130] device-mapper: multipath: Failing path 67:128.</span></div></div></body></html>