What alerts are displayed ? Do any components have a fault led lit  ? Can you paste up the out out of a getcrus ? naviseccli -h arrayspaddress getcrus -all  If there's no component failure, check and reseat your lcc cables.  Then remove and reinstall the DAE (as you've described) and finally, if required, reboot the SP's. (make sure your multipathing status is all good)
Hi, this is my problem: My customer have two VNX 5300 with 4 DAEs. My job was to add one more DAE to each storage. For this task I used USM. In the first VNX everything ran ok, the new DAE was installed without troubles. In the second storage, I conected one SAS cable to the last enclosure (bus 0) and the second SAS cable, by mistake, in  another enclosure (bus 1). Inmediately I saw the error and I corrected it but at this time the Unisphere had already detected two new enclosures, one per bus. In Unisphere, the real enclosure appear with “Fault” and the other “phantom” enclosure appear like “Missing”. I want to clean this conditions but I don´t know how to do it. I apreciate any help.
Clean Fault condition