[Bug 1088411] [NEW] Cannot attach volumes to instances if using NexentaStor driver

[Juris]

Public bug reported:

It looks like the bug #871278 is still present in NexentaStor driver.

I'm using Ubuntu 12.04.1 64bit with cinder-volumes package
2012.2-0ubuntu2~cloud0 and if I try to attach cinder volume to an
instance, it fails with the following error in nova-compute.log:

2012-12-05 16:10:26 TRACE Error: iSCSI device not found at /dev/disk/by-
path/ip-10.1.0.2:3260-iscsi-iqn.1986-03.com.sun:02:cinder-
volume-0000001-lun-1

However the file /dev/disk/by-path/ip-10.1.0.2:3260-iscsi-
iqn.1986-03.com.sun:02:cinder-volume-0000001-lun-0 exists.

So if I do

ln -s /dev/disk/by-path/ip-10.1.0.2:3260-iscsi-iqn.1986-03.com.sun:02
:cinder-volume-0000001-lun-0 /dev/disk/by-path/ip-10.1.0.2:3260-iscsi-
iqn.1986-03.com.sun:02:cinder-volume-0000001-lun-1

everything works.

I fixed it by changing line 232 in

/usr/share/pyshared/cinder/volume/nexenta/volume.py

from

'lun': '0'})

 to

'lun': '1'})

** Affects: cinder (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- Cannot attach volumes to instances if using NexentaStror driver
+ Cannot attach volumes to instances if using NexentaStor driver

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https://bugs.launchpad.net/bugs/1088411

Title:
  Cannot attach volumes to instances if using NexentaStor driver

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