[ale] XenServer 7.x problem - anyone else using it?

[Beddingfield, Allen]

I have a PowerEdge R815 with XenServer 7 installed.  I am using the internal storage for VM storage (just a standalone server).
I've created a SLES 12 SP1 VM (using the template provided).  Everything goes fine, I can load up the OS, patch it, do whatever with no problems.  However, if I power the VM down, I can't start it back. 
I get "The SR failed to complete the operation".
If I ssh into the Xen server and run "lvdisplay", it shows the status as "NOT available" - see below:

[root at xentest01 ~]# lvdisplay
  --- Logical volume ---
  LV Path                /dev/VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869/MGT
  LV Name                MGT
  VG Name                VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869
  LV UUID                Cz6tVV-rCJp-Acu9-zC0T-PEo3-5tT3-2WLzsa
  LV Write Access        read/write
  LV Creation host, time xentest01, 2016-08-05 10:22:13 -0500
  LV Status              available
  # open                 0
  LV Size                4.00 MiB
  Current LE             1
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
   
  --- Logical volume ---
  LV Path                /dev/VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869/VHD-9ebd5bf6-4613-4fc6-9aa0-738496dae1c9
  LV Name                VHD-9ebd5bf6-4613-4fc6-9aa0-738496dae1c9
  VG Name                VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869
  LV UUID                vOZwtO-vuCF-WM26-hz3P-hghQ-dlsx-k5ZOvZ
  LV Write Access        read/write
  LV Creation host, time xentest01, 2016-08-05 14:08:25 -0500
  LV Status              NOT available
  LV Size                20.05 GiB
  Current LE             5132
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
   
[root at xentest01 ~]# 

When I try to activate it, I get the following:

[root at xentest01 ~]# vgchange -a y
  Operation prohibited while global/metadata_read_only is set.
  Operation prohibited while global/metadata_read_only is set.
  1 logical volume(s) in volume group "VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869" now active
[root at xentest01 ~]# 

Anyone have any idea what is going on? I've never had this issue with previous XenServer installs, but this is my first with 7.x.  FYI, I can readily reproduce this.  EVERY time I load a server and try this, I get the exact same result.

Thanks.
Allen B.

-- 
Allen Beddingfield
Systems Engineer
Office of Information Technology
The University of Alabama
Office 205-348-2251
allen at ua.edu