Public bug reported:
1. As for SAN storage has not only one iqn. so, one multipath device will have
not only one iqn.
2、the function as follow:
def _get_multipath_iqn(self, multipath_device):
entries = self._get_iscsi_devices()
for entry in entries:
entry_real_path = os.path.realpath("/dev/disk/by-path/%s" % entry)
entry_multipath = self._get_multipath_device_name(entry_real_path)
if entry_multipath == multipath_device:
return entry.split("iscsi-")[1].split("-lun")[0]
return None
so, if the multipath_device match one device, will return. but return only one
iqn.
but the issue is the multipath_device will contain several single device. as
following:
[root@R4300G2-ctrl02 ~]# ll /dev/disk/by-path/
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.1.1:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53-lun-1
-> ../../sds
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.2.1:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53-lun-1
-> ../../sdl
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.1.2:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00-lun-1
-> ../../sdo
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.2.2:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00-lun-1
-> ../../sdm
so the device have two different
iqns.(-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00,
iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53)
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1470093
Title:
The function "_get_multipath_iqn" get iqn is not complete
Status in OpenStack Compute (Nova):
New
Bug description:
1. As for SAN storage has not only one iqn. so, one multipath device will
have not only one iqn.
2、the function as follow:
def _get_multipath_iqn(self, multipath_device):
entries = self._get_iscsi_devices()
for entry in entries:
entry_real_path = os.path.realpath("/dev/disk/by-path/%s" % entry)
entry_multipath = self._get_multipath_device_name(entry_real_path)
if entry_multipath == multipath_device:
return entry.split("iscsi-")[1].split("-lun")[0]
return None
so, if the multipath_device match one device, will return. but return only
one iqn.
but the issue is the multipath_device will contain several single device. as
following:
[root@R4300G2-ctrl02 ~]# ll /dev/disk/by-path/
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.1.1:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53-lun-1
-> ../../sds
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.2.1:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53-lun-1
-> ../../sdl
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.1.2:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00-lun-1
-> ../../sdo
lrwxrwxrwx 1 root root 9 Jun 30 14:45
ip-172.12.2.2:3260-iscsi-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00-lun-1
-> ../../sdm
so the device have two different
iqns.(-iqn.2099-01.cn.com.zte:usp.spr-4c:09:b4:00:00:00,
iqn.2099-01.cn.com.zte:usp.spr-a0:c0:00:00:00:53)
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