Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-06-02 Thread Chris Jones - BookIt . com Systems Administrator
Since this thread shows up at the top of the search oVirt compellent, I should mention that this has been solved. The problem was a bad disk in the Compellent's tier 2 storage. The mutlipath.conf and iscsi.conf advice is still valid, though, and made oVirt more resilient when the Compellent

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-26 Thread Chris Jones - BookIt . com Systems Administrator
Lets continue this on bugzilla. https://bugzilla.redhat.com/show_bug.cgi?id=1225162 ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-22 Thread Fabian Deutsch
- Original Message - On 05/21/2015 03:49 PM, Chris Jones - BookIt.com Systems Administrator wrote: I've applied the multipath.conf and iscsi.conf changes you recommended. It seems to be running better. I was able to bring up all the hosts and VMs without it falling apart. I take

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-22 Thread Nir Soffer
- Original Message - From: Chris Jones - BookIt.com Systems Administrator chris.jo...@bookit.com To: users@ovirt.org Sent: Friday, May 22, 2015 12:32:01 AM Subject: Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath On 05/21/2015 03:49 PM, Chris Jones

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-22 Thread Nir Soffer
- Original Message - From: Chris Jones - BookIt.com Systems Administrator chris.jo...@bookit.com To: users@ovirt.org Sent: Friday, May 22, 2015 8:55:37 PM Subject: Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath Is there maybe some IO problem

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-22 Thread Chris Jones - BookIt . com Systems Administrator
Is there maybe some IO problem on the iSCSI target side? IIUIC the problem is some timeout, which could indicate that the target is overloaded. Maybe. I need to check with Dell. I did manage to get it to be a little more stable with this config. defaults { polling_interval 10

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-22 Thread Nir Soffer
- Original Message - From: Chris Jones - BookIt.com Systems Administrator chris.jo...@bookit.com To: users@ovirt.org Sent: Thursday, May 21, 2015 10:49:23 PM Subject: Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath I've applied the multipath.conf

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-21 Thread Jorick Astrego
On 05/21/2015 02:47 AM, Chris Jones - BookIt.com Systems Administrator wrote: Another issue may be that the setting for COMPELNT/Compellent Vol are wrong; the setting we ship is missing lot of settings that exists in the builtin setting, and this may have bad effect. If your devices match

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-21 Thread Daniel Helgenberger
On 21.05.2015 02:48, Chris Jones - BookIt.com Systems Administrator wrote: Another issue may be that the setting for COMPELNT/Compellent Vol are wrong; the setting we ship is missing lot of settings that exists in the builtin setting, and this may have bad effect. If your devices match this ,

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-21 Thread Chris Jones - BookIt . com Systems Administrator
On 05/21/2015 03:49 PM, Chris Jones - BookIt.com Systems Administrator wrote: I've applied the multipath.conf and iscsi.conf changes you recommended. It seems to be running better. I was able to bring up all the hosts and VMs without it falling apart. I take it back. This did not solve the

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-21 Thread Chris Jones - BookIt . com Systems Administrator
I've applied the multipath.conf and iscsi.conf changes you recommended. It seems to be running better. I was able to bring up all the hosts and VMs without it falling apart. I'm still seeing the domain in problem and recovered from problem warnings in engine.log, though. They were happening

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Fabian Deutsch
- Original Message - Hello Chris, On 05/19/2015 06:19 PM, Chris Jones - BookIt.com Systems Administrator wrote: Engine: oVirt Engine Version: 3.5.2-1.el7.centos Nodes: oVirt Node - 3.5 - 0.999.201504280931.el7.centos Remote storage: Dell Compellent SC8000 Storage setup: 2 nics

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Andrea Ghelardi
Hi Chris, I have an Ovirt + Dell Compellent similar to yours (previous model, not SC8000) and sometimes I faced issues similar to yours. From my experience I can advise you to A) check links between SAN and servers, all paths, all configuration, cabling. Everything should be setup correctly (all

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Chris Jones - BookIt . com Systems Administrator
Sorry for the delay on this. I am in the process of reproducing the error to get the logs. On 05/19/2015 07:31 PM, Douglas Schilling Landgraf wrote: Hello Chris, On 05/19/2015 06:19 PM, Chris Jones - BookIt.com Systems Administrator wrote: Engine: oVirt Engine Version: 3.5.2-1.el7.centos

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Chris Jones - BookIt . com Systems Administrator
vdsm.log in the node side, will help here too. https://www.dropbox.com/s/zvnttmylmrd0hyx/vdsm.log.gz?dl=0. This log contains only the messages at and after when a host was become unresponsive due to storage issues. # rpm -qa | grep -i vdsm might help too. vdsm-cli-4.16.14-0.el7.noarch

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Nir Soffer
- Original Message - From: Chris Jones - BookIt.com Systems Administrator chris.jo...@bookit.com To: users@ovirt.org Sent: Thursday, May 21, 2015 12:49:50 AM Subject: Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath vdsm.log in the node side

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Chris Jones - BookIt . com Systems Administrator
Chris, as you are using ovirt-node, after Nir suggestions please also execute the below command too to save the settings changes across reboots: # persist /etc/iscsi/iscsid.conf Thanks. I will do so, but first I have to resolve not being able to update multipath.conf as described in my

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Douglas Schilling Landgraf
On 05/20/2015 07:10 PM, Nir Soffer wrote: - Original Message - From: Chris Jones - BookIt.com Systems Administrator chris.jo...@bookit.com To: users@ovirt.org Sent: Thursday, May 21, 2015 12:49:50 AM Subject: Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-20 Thread Chris Jones - BookIt . com Systems Administrator
Another issue may be that the setting for COMPELNT/Compellent Vol are wrong; the setting we ship is missing lot of settings that exists in the builtin setting, and this may have bad effect. If your devices match this , I would try this multipath configuration, instead of the one vdsm configures.

Re: [ovirt-users] oVirt Instability with Dell Compellent via iSCSI/Multipath

2015-05-19 Thread Douglas Schilling Landgraf
Hello Chris, On 05/19/2015 06:19 PM, Chris Jones - BookIt.com Systems Administrator wrote: Engine: oVirt Engine Version: 3.5.2-1.el7.centos Nodes: oVirt Node - 3.5 - 0.999.201504280931.el7.centos Remote storage: Dell Compellent SC8000 Storage setup: 2 nics connected to the Compellent. Several