Citrix has released the 22nd hotfix for XenServer version 6.0. This latest hotfix includes and replaces (supersedes) hotfix XS60E017.
This fix resolves the following issues:
After installing CTX134870 – Hotfix XS60E017 – For XenServer 6.0, multipathing will only use one path for Software iSCSI on arrays which contain the same IQN on multiple target portals. As a result, customers will see only one active path and will not successfully failover in the event of an infrastructure issue. This hotfix resolves this issue.
In addition, this hotfix also includes fixes released in CTX131745 – Hotfix XS60E003 – For XenServer 6.0, CTX133961 – Hotfix XS60E016 – For XenServer 6.0, and CTX134870 – Hotfix XS60E017 – For XenServer 6.0.
NOTE: Customers who are currently experiencing this problem should detach and re-attach the Storage Repositories (SRs) after applying the hotfix. However, customers who cannot detach and re-attach the SR, should refer to CTX135274 – Multipath Workaround for Customers Affected by XenServer Hotfix XS60E017 for a temporary workaround.
You can download this hotfix here at the Citrix Knowledge Base.