<p dir="ltr"></p>
<p dir="ltr">On Aug 9, 2016 10:52 AM, "Beddingfield, Allen" <<a href="mailto:allen@ua.edu">allen@ua.edu</a>> wrote:<br>
><br>
> Interesting update to this:<br>
><br>
> The problem ONLY occurs if I use Btrfs. If I use XFS, it works as expected.<br>
> What INSIDE a VM could possibly mess with the underlying LVM volumes for the virtualization host?</p>
<p dir="ltr">It's possible that the hosting environment wants to directly handle the filesystem layer but has no capability for btrfs. I've seen this when things are set for raw disk usage.</p>
<p dir="ltr">> As strange as it seems, I can readily duplicate it.<br>
><br>
> Allen B.<br>
><br>
> --<br>
> Allen Beddingfield<br>
> Systems Engineer<br>
> Office of Information Technology<br>
> The University of Alabama<br>
> Office 205-348-2251<br>
> <a href="mailto:allen@ua.edu">allen@ua.edu</a><br>
><br>
> On 8/5/16, 3:33 PM, "<a href="mailto:ale-bounces@ale.org">ale-bounces@ale.org</a> on behalf of Beddingfield, Allen" <<a href="mailto:ale-bounces@ale.org">ale-bounces@ale.org</a> on behalf of <a href="mailto:allen@ua.edu">allen@ua.edu</a>> wrote:<br>
><br>
> I have a PowerEdge R815 with XenServer 7 installed. I am using the internal storage for VM storage (just a standalone server).<br>
> 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.<br>
> I get "The SR failed to complete the operation".<br>
> If I ssh into the Xen server and run "lvdisplay", it shows the status as "NOT available" - see below:<br>
><br>
> [root@xentest01 ~]# lvdisplay<br>
> --- Logical volume ---<br>
> LV Path /dev/VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869/MGT<br>
> LV Name MGT<br>
> VG Name VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869<br>
> LV UUID Cz6tVV-rCJp-Acu9-zC0T-PEo3-5tT3-2WLzsa<br>
> LV Write Access read/write<br>
> LV Creation host, time xentest01, 2016-08-05 10:22:13 -0500<br>
> LV Status available<br>
> # open 0<br>
> LV Size 4.00 MiB<br>
> Current LE 1<br>
> Segments 1<br>
> Allocation inherit<br>
> Read ahead sectors auto<br>
> - currently set to 256<br>
> Block device 253:0<br>
><br>
> --- Logical volume ---<br>
> LV Path /dev/VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869/VHD-9ebd5bf6-4613-4fc6-9aa0-738496dae1c9<br>
> LV Name VHD-9ebd5bf6-4613-4fc6-9aa0-738496dae1c9<br>
> VG Name VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869<br>
> LV UUID vOZwtO-vuCF-WM26-hz3P-hghQ-dlsx-k5ZOvZ<br>
> LV Write Access read/write<br>
> LV Creation host, time xentest01, 2016-08-05 14:08:25 -0500<br>
> LV Status NOT available<br>
> LV Size 20.05 GiB<br>
> Current LE 5132<br>
> Segments 1<br>
> Allocation inherit<br>
> Read ahead sectors auto<br>
><br>
> [root@xentest01 ~]#<br>
><br>
> When I try to activate it, I get the following:<br>
><br>
> [root@xentest01 ~]# vgchange -a y<br>
> Operation prohibited while global/metadata_read_only is set.<br>
> Operation prohibited while global/metadata_read_only is set.<br>
> 1 logical volume(s) in volume group "VG_XenStorage-bebcb0ae-252f-5c52-ca61-9e66b0aa5869" now active<br>
> [root@xentest01 ~]#<br>
><br>
> 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.<br>
><br>
> Thanks.<br>
> Allen B.<br>
><br>
> --<br>
> Allen Beddingfield<br>
> Systems Engineer<br>
> Office of Information Technology<br>
> The University of Alabama<br>
> Office 205-348-2251<br>
> <a href="mailto:allen@ua.edu">allen@ua.edu</a><br>
><br>
><br>
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