[ovirt-users] VM has been paused due to no Storage space error.

Hi, We're running oVirt 3.6.4.1-1. Lately we're seeing a bunch of events like these: 2016-04-13 10:52:30,735 INFO [org.ovirt.engine.core.vdsbroker.VmAnalyzer] (DefaultQuartzScheduler_Worker-86) [60dea18f] VM 'f9cd282e-110a-4896-98d3-6d320662744d'(vm.domain.com) moved from 'Up' --> 'Paused' 2016-04-13 10:52:30,815 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-86) [60dea18f] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM vm.domain.com has been paused. 2016-04-13 10:52:30,898 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-86) [60dea18f] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM vm.domain.com has been paused due to no Storage space error. 2016-04-13 10:52:52,320 WARN [org.ovirt.engine.core.vdsbroker.irsbroker.IrsProxyData] (org.ovirt.thread.pool-8-thread-38) [] domain '5de4a000-a9c4-489c-8eee-10368647c413:iscsi01' in problem. vds: 'host6.domain.com' 2016-04-13 10:52:55,183 INFO [org.ovirt.engine.core.vdsbroker.VmAnalyzer] (DefaultQuartzScheduler_Worker-70) [3da0f3d4] VM 'f9cd282e-110a-4896-98d3-6d320662744d'(vm.domain.com) moved from 'Paused' --> 'Up' 2016-04-13 10:52:55,318 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-70) [3da0f3d4] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM vm.domain.com has recovered from paused back to up. The storage domain is far from being full, though (400+ G available right now). Could this be related to this other issue [1]? If not, how could I debug what's going on? Thanks. [1]: https://www.mail-archive.com/users@ovirt.org/msg32079.html