<div dir="ltr">Hi All.<div><br></div><div>I recently added a EMC V-Max storage system, and realized the multipath is not working. The device is called /dev/mapper/XXXX but when I see the multipath -ll output, I see just one path. It is working fine with a NetApp 3250. </div>
<div><br></div><div>Looking into differences, I see the output of the iscsiadm discovery differs:</div><div><br></div><div>Netapp output:</div><div><div>root@grizzly-dev04:~# iscsiadm -m discovery -t sendtargets -p 10.33.5.10</div>
<div><a href="http://10.33.5.10:3260">10.33.5.10:3260</a>,1030 iqn.1992-08.com.netapp:sn.0e3c22d9f2ea11e2a2f2123478563412:vs.10</div><div><a href="http://10.33.5.11:3260">10.33.5.11:3260</a>,1031 iqn.1992-08.com.netapp:sn.0e3c22d9f2ea11e2a2f2123478563412:vs.10</div>
<div><br></div><div>Emc output:</div><div>root@grizzly-dev04:~# iscsiadm -m discovery -t sendtargets -p 10.33.5.25</div><div><a href="http://10.33.5.25:3260">10.33.5.25:3260</a>,1 iqn.1992-04.com.emc:50000973f00bcd44</div>
</div><div><br></div><div><br></div><div>Looking into the code, the former is clearly what the connect_volume method is expecting: a single ip which returns both path. I reported it to EMC and the answer is that it works with netapp because the 3250 has a feature EMC lacks (called multipath groups). </div>
<div><br></div><div>Is anybody using multipath with a V-Max?. It should work or EMC is not supported?</div><div><br></div><div>Thanks!</div><div>Carlos</div></div>