https://community.hpe.com/t5/disk-enclosures/eva5000-improper-protocol-error/m-p/3539267#M16077 Can u tell the assembly part no of the EMU in the affected disk enclosure Wed, 11 Jan 2006 10:30:21 GMT SaketSwadesh 2006-01-11T10:30:21Z https://community.hpe.com/t5/disk-enclosures/eva5000-improper-protocol-error/m-p/3539266#M16076 Hi All,<BR /> I am noticing the following error in the command view controller event log.EVA5000 is in 2C12D configuration.<BR />"""A physical disk drive is using an improper protocol to attempt communication with an Drive Enclosure Environmental Monitoring Unit. <BR />Corrective action code: 9c"""<BR /><BR />and <BR /><BR />"""The retry count for a task assigned to a Drive Enclosure Environmental Monitoring Unit has been exhausted. <BR />Corrective action code: 00 """"""<BR /><BR />I think that the disk might be about to fail or is there anything else we need to check.<BR /> <BR /> Fri, 06 May 2005 07:38:52 GMT https://community.hpe.com/t5/disk-enclosures/eva5000-improper-protocol-error/m-p/3539266#M16076 Learn_1 2005-05-06T07:38:52Z https://community.hpe.com/t5/disk-enclosures/eva5000-improper-protocol-error/m-p/3539267#M16077 Can u tell the assembly part no of the EMU in the affected disk enclosure Wed, 11 Jan 2006 10:30:21 GMT https://community.hpe.com/t5/disk-enclosures/eva5000-improper-protocol-error/m-p/3539267#M16077 SaketSwadesh 2006-01-11T10:30:21Z