RHEV: "Cannot extend Storage Domain. Storage device is unreachable from $(hostname)"

Solution Verified - Updated -

Issue

  • Error while Attempting to Expand Storage Domain.
  • The following error was reported in the RHEV-M Admin Portal;
Cannot extend Storage Domain. Storage device is unreachable from $(hostname).
  • The /var/log/ovirt-engine/engine.log file on the RHEV Manager contained;
2013-11-22 19:34:37,018 ERROR [org.ovirt.engine.core.bll.storage.ConnectAllHostsToLunCommand] (http-/0.0.0.0:8443-25) [78ec6f1d] Transaction rolled-back for command: org.ovirt.engine.core.bll.storage.ConnectAllHostsToLunCommand.
2013-11-22 19:34:37,023 WARN  [org.ovirt.engine.core.bll.storage.ExtendSANStorageDomainCommand] (http-/0.0.0.0:8443-25) [78ec6f1d] CanDoAction of action ExtendSANStorageDomain failed. Reasons:VAR__TYPE__STORAGE__DOMAIN,VAR__ACTION__EXTEND,ERROR_CANNOT_EXTEND_CONNECTION_FAILED,$lun  

Environment

  • Red Hat Enterprise Virtualization (RHEV) 3.1 and 3.2
  • Red Hat Enterprise Virtualization Hypervisor (RHEV-H) 6.4

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