I really think it is a multipath-tools issue. Here are the comparisons:
ubuntu@osp225219:~$ for dev in sdf sdg sdh sdi; do sudo sg_inq /dev/${dev};
done | grep 'identification'
Vendor identification: DGC
Product identification: VRAID
Vendor identification: DGC
Product identification: VRAID
Vendor identification: DGC
Product identification: VRAID
Vendor identification: DGC
Product identification: VRAID
ubuntu@osp225219:~$ sudo ./inq.LinuxAMD64 | grep 'sd[fhgi]'
/dev/sdf :DGC :VRAID :0533 :BB589458 : 18874368
/dev/sdg :DGC :VRAID :0533 :BB589458 : 18874368
/dev/sdh :DGC :VRAID :0533 :CA589477 : 29360128
/dev/sdi :DGC :VRAID :0533 :CA589477 : 29360128
ubuntu@osp225219:~$ sudo multipath -v 3 -ll | grep '\(sdf\|sdg\|sdh\|sdi\)' |
grep '\(vendor\|product\)'
Mar 10 08:24:19 | sdf: vendor = DGC
Mar 10 08:24:19 | sdf: product = LUNZ
Mar 10 08:24:19 | sdh: vendor = DGC
Mar 10 08:24:19 | sdh: product = VRAID
Mar 10 08:24:19 | sdg: vendor = DGC
Mar 10 08:24:19 | sdg: product = LUNZ
Mar 10 08:24:19 | sdi: vendor = DGC
Mar 10 08:24:19 | sdi: product = VRAID
BTW, what do you mean by saying "two logins"? I cannot quite understand
this.
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https://bugs.launchpad.net/bugs/1671397
Title:
A VNX LUN will still be recognized as LUNZ after provisioning
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