Dear Everyone, Because of your discussion I have taken over the function of our network engineer and did some exploring myself. We don't know why, but someone enabled spanning tree on these interfaces. We are planning a maintenance window shortly to turn this off. Thank you very much for your suggestions.
Dear Everyone,  After our upgrade from v6.0.4 to v7.0.2, we are getting strange errors by email and logging. These errors started after the upgrade. Strangest thing is that when we are receiving an error and are logging in, the error is gone already. Severity  Date and Time      Member       ID              Message                                                                                                                                                                                                                                                                  --------  -----------------  -----------  --------------  -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------   Error    7-4-2014 11:44:20  san4-shared  7.4.3 | 7.4.23  iSCSI login to target '10.x.x.x:3260, iqn.2001-05.com.equallogic:xxxx'from initiator '10.x.x.x:55898, eqlinitiatorsyncrep' failed for the following reason: | Initiator disconnected from target during login.      Why is this error coming up so often since the upgrade? Is this a Hardware or Software failure? The reason i'm asking is that our other clusters are not showing this error.  With regards, Andreas van der Linden.
FW 7.0.2 - Synrep Issues and Errors